www.siemens.com/energy Low weight. Strong performance. 3EL surge arresters superior protection up to 550 kV
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www.siemens.com/energy
Low weight. Strong performance.
3EL surge arresters superior protection up to 550 kV
not subject to erosion or UV radiation, which guarantees long-term stability of the housing material (unlike other polymeric materials such as EPDM, for example). The aging resistance of our 3EL arresters has been proven by ac celerated aging tests (1000/5000 h salt fog test).
A long service life of 3EL arresters is also ensured by its cage design: silicone is directly molded onto the MO blocks ensuring total enclosure of all components free of bubbles and gaps and thus making impossible any partial discharges or moisture ingress.
Low weight: flexible and easy installation
The use of FRP and silicone as housing materials leads to a low weight of our 3EL arresters, allowing easy transport and flexible installation at all mounting angles (e.g. horizontal, vertical, hung from the transmission line as line surge arrester). The strength and weight of arrester supports can be reduced as well as the need of heavy installation equipment. The sheds of the 3EL are resistant to damage arising from transport, installation, storms, earthquakes, or vandalism.
Silicone: best performance under pollution conditions
The silicone material used for our 3EL arresters is highly hydrophobic – water and pollution do not form a continuous conductive film on the surface. Thus, surface currents and the risk of flashover are reduced, especially in polluted or coastal environments.
Simply irresistible
Good reasons for the 3EL
Our 3EL arresters use the same MO blocks as our 3EP and 3EQ arrester product lines, resulting in the same excellent electrical performance. The innovative cage design using silicone and fiberglass-reinforced plastic (FRP) rods as housing material leads to a lot of additional advantages.
Cage design: high mechanical strength and safe overload performance
The MO blocks of the 3EL are enclosed by a cage of prestressed fiberglass-reinforced plastic (FRP) rods. The high tensile strength of the FRP rods is used to hold together tightly the arrester’s MO blocks. The result is the 3EL family having one of the highest mechanical strengths of polymer arresters available on the market – in very low weight. In case of an overload or a short circuit of the arrester – an extremely rare event – it is impossible that any high pressure is built up because the MO blocks are not enclosed in a sealed mechanical shell or wrapped by any hard material. This permits the arc to escape directly through the soft silicone housing and makes it almost impossible that any internal parts could be ejected damaging other equipment even if it is installed very close.
Long service life
Silicone is the only polymeric material that maintains its hydrophobicity throughout its lifetime. Other polymeric materials may also be hydrophobic, too, but lose their hydrophobicity after a short period. Additionally, the silicone used for our 3EL arresters is highly fire-retardant and self-extinguishing and is
Our high-voltage surge arresters with silicone housing are leading the way with superior design and construction. Built with silicone directly molded onto the metal oxide (MO) blocks, all arresters simply resist discharge and moisture ingress under nearly all physical or environmental conditions.
The 3EL surge arresters provide superior protection for system voltages from 3.6 up to 550 kV. Combine these advantages with a low weight Cage Design™ and high robustness, and you have outstandingly cost-effective solutions for station arresters, line surge arresters, or equipment protection. What do we call these irresistible surge arresters? Simply 3EL. Another outstanding product family from Siemens.
Resists wear in any environment
2
Applications:
As a station arrester or line surge arrester for protection of switchgear, transformers, and other equipment in high-voltage systems up to Um = 550 kV against lightning and switching overvoltages
For all arrester applications with high mechanical requirements (up to 4 kNm, dynamic)
For erection at all mounting angles, e.g. hung from the station structures, vertical installation, hung from the transmission line (as line surge arrester)
For all applications where low weight and nonfragility of the arrester are required
About IEC 60099-4
The IEC 60099-4 standard was extended in July 2006 by new rules for short-circuit tests of arresters. Whether an arrester complies with the newly introduced differentiation “Design A” or “Design B” depends on the existence and size of the gas volume inside. While Design A arresters are typically hollow (e.g. with porcelain or composite housings), Design B arresters contain just a small gas volume or none at all, so typically they are not designed with pressure relief (e.g. “cage design” or “wrapped design”). Design B arresters are no longer allowed to be tested with an internal fuse wire. Instead, the so-called “pre-failing method” must be used before the application of the high short-circuit current.
Our innovative “cage design” arresters – such as the 3EL2 – are considered “Design B” according to the new standard. Siemens was the first complete-range manufacturer already fully in compliance with the new rules.
… during operation
safe overload performance and high mechanical strength due to cage design
excellent electrical performance
long-term stable hydrophobicity of silicone housing ensures best performance even under extreme environmental conditions (industrial/polluted, coastal, desert)
extended creepage distance
highly fire-retardant and self-extinguishing
Superior material and design leading to an outstanding price/performance ratio …
… during transport and installation
low weight, easy and flexible installation at all mounting angles
resistance to damage arising from transport, installation or vandalism
… throughout the entire life cycle
long service life, no moisture ingress due to direct molding of silicone onto MO blocks
LD class Long duration current impulse max. value / A Um
3.6 7.2 12 24 36 52 72.5 123 145 170 245 300 362 420 550433222
12001200 1100
1100 750 550
3EL23EL23EL23EL23EL13EL5
3
Matching any requirement
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
3.6 3 2.4 2 550 6.8 7.2 7.4 8.0 8.6 9.2 9.8 11.4 6.2 6.6 3EL5 003 - 0 P B 2 1 - 4 xxx 1 104 49 2940 2050 170 372 180 3.7 51
3 2.4 2 750 6.1 6.4 6.7 7.1 7.7 8.2 8.6 9.8 5.6 5.9 3EL1 003 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 6.4 11
6 4.8 2 750 12.2 12.9 13.3 14.2 15.3 16.4 17.1 19.6 11.2 11.8 3EL1 006 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.2 11
7.2 6 4.8 2 550 13.7 14.4 14.9 15.9 17.1 18.5 19.7 22.7 12.5 13.2 3EL5 006 - 0 P B 2 1 - 4 xxx 1 104 49 2940 2050 170 372 180 3.8 51
6 4.8 2 750 12.2 12.9 13.3 14.2 15.3 16.4 17.1 19.6 11.2 11.8 3EL1 006 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.2 11
9 7.2 2 550 20.5 21.5 22.3 23.9 25.7 27.7 29.5 34.1 18.7 19.8 3EL5 009 - 0 P C 2 1 - 4 xxx 1 122 57 2500 1750 200 485 210 4.2 51
9 7.2 2 750 18.4 19.3 20.0 21.3 23.0 24.6 25.7 29.4 16.8 17.7 3EL1 009 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.6 11
9 7.2 2 1100 16.6 17.4 17.8 19.0 20.3 21.5 22.5 25.5 15.4 16.2 3EL2 009 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1100 17.3 18.2 18.6 19.9 21.2 22.9 24.0 27.2 16.4 17.3 3EL2 009 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1200 16.8 17.6 18.0 19.0 20.3 21.3 22.3 24.3 15.6 16.4 3EL2 009 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.3 21
12 9 7.2 2 750 18.4 19.3 20.0 21.3 23.0 24.6 25.7 29.4 16.8 17.7 3EL1 009 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.6 11
9 7.2 2 1100 16.6 17.4 17.8 19.0 20.3 21.5 22.5 25.5 15.4 16.2 3EL2 009 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1100 17.3 18.2 18.6 19.9 21.2 22.9 24.0 27.2 16.4 17.3 3EL2 009 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1200 16.8 17.6 18.0 19.0 20.3 21.3 22.3 24.3 15.6 16.4 3EL2 009 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.3 21
12 9.6 2 550 27.4 28.7 29.8 31.8 34.2 36.9 39.3 45.5 25.0 26.3 3EL5 012 - 0 P D 2 1 - 4 xxx 1 144 67 2080 1450 240 605 248 4.6 51
15 12.0 2 750 30.6 32.1 33.3 35.6 38.3 40.9 42.8 49.0 27.9 29.5 3EL1 015 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.9 11
15 12.0 2 1100 27.7 29.0 29.7 31.7 33.8 35.8 37.5 42.5 25.7 27.0 3EL2 015 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1100 28.9 30.3 31.0 33.1 35.3 38.2 40.0 45.4 27.4 28.8 3EL2 015 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1200 28.0 29.4 30.0 31.7 33.8 35.4 37.1 40.5 26.0 27.3 3EL2 015 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
15 12.0 4 1200 29.9 31.3 32.0 33.8 36.0 37.8 39.6 43.2 27.7 29.2 3EL2 015 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
17.5 15 12.0 2 550 34.2 35.9 37.2 39.8 42.8 46.2 49.2 56.9 31.2 32.9 3EL5 015 - 0 P D 2 1 - 4 xxx 1 144 67 2080 1450 240 605 248 4.7 51
15 12.0 2 750 30.6 32.1 33.3 35.6 38.3 40.9 42.8 49.0 27.9 29.5 3EL1 015 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.9 11
15 12.0 2 1100 27.7 29.0 29.7 31.7 33.8 35.8 37.5 42.5 25.7 27.0 3EL2 015 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1100 28.9 30.3 31.0 33.1 35.3 38.2 40.0 45.4 27.4 28.8 3EL2 015 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1200 28.0 29.4 30.0 31.7 33.8 35.4 37.1 40.5 26.0 27.3 3EL2 015 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
15 12.0 4 1200 29.9 31.3 32.0 33.8 36.0 37.8 39.6 43.2 27.7 29.2 3EL2 015 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
18 14.4 2 750 36.7 38.6 39.9 42.7 45.9 49.1 51.4 58.8 33.5 35.3 3EL1 018 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 8.6 11
18 14.4 2 1100 33.2 34.8 35.6 38.1 40.5 42.9 45.0 51.0 30.8 32.4 3EL2 018 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
18 14.4 3 1100 34.7 36.4 37.2 39.8 42.3 45.8 48.0 54.4 32.8 34.6 3EL2 018 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
Highest voltage for equipment Um kV
Maximum rated voltage Ur kV
Maximum nominal discharge current In kA
Maximum line discharge class
Maximum energy absorption capability kJ/kVr
Maximum long-duration current impulse A
Rated short-circuit current kA
Maximum permissible service load kNm
362
288
10
2
5
1100
65
4
3EL1
362
288
10
2
5
750
65
1.2
420
360
10
3
8
1100
65
4
420
360
10
3
8
1200
65
4
3EL2 3EL2 3EL2 3EL2
145
126
10
2
4.4
550
20
0.5
3EL5
550
468
20
4
10
1200
65
4
Maximum values
Electrical data
4
Power frequency voltage versus time characteristic (TOV)
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
3.6 3 2.4 2 550 6.8 7.2 7.4 8.0 8.6 9.2 9.8 11.4 6.2 6.6 3EL5 003 - 0 P B 2 1 - 4 xxx 1 104 49 2940 2050 170 372 180 3.7 51
3 2.4 2 750 6.1 6.4 6.7 7.1 7.7 8.2 8.6 9.8 5.6 5.9 3EL1 003 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 6.4 11
6 4.8 2 750 12.2 12.9 13.3 14.2 15.3 16.4 17.1 19.6 11.2 11.8 3EL1 006 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.2 11
7.2 6 4.8 2 550 13.7 14.4 14.9 15.9 17.1 18.5 19.7 22.7 12.5 13.2 3EL5 006 - 0 P B 2 1 - 4 xxx 1 104 49 2940 2050 170 372 180 3.8 51
6 4.8 2 750 12.2 12.9 13.3 14.2 15.3 16.4 17.1 19.6 11.2 11.8 3EL1 006 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.2 11
9 7.2 2 550 20.5 21.5 22.3 23.9 25.7 27.7 29.5 34.1 18.7 19.8 3EL5 009 - 0 P C 2 1 - 4 xxx 1 122 57 2500 1750 200 485 210 4.2 51
9 7.2 2 750 18.4 19.3 20.0 21.3 23.0 24.6 25.7 29.4 16.8 17.7 3EL1 009 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.6 11
9 7.2 2 1100 16.6 17.4 17.8 19.0 20.3 21.5 22.5 25.5 15.4 16.2 3EL2 009 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1100 17.3 18.2 18.6 19.9 21.2 22.9 24.0 27.2 16.4 17.3 3EL2 009 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1200 16.8 17.6 18.0 19.0 20.3 21.3 22.3 24.3 15.6 16.4 3EL2 009 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.3 21
12 9 7.2 2 750 18.4 19.3 20.0 21.3 23.0 24.6 25.7 29.4 16.8 17.7 3EL1 009 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.6 11
9 7.2 2 1100 16.6 17.4 17.8 19.0 20.3 21.5 22.5 25.5 15.4 16.2 3EL2 009 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1100 17.3 18.2 18.6 19.9 21.2 22.9 24.0 27.2 16.4 17.3 3EL2 009 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.3 21
9 7.2 3 1200 16.8 17.6 18.0 19.0 20.3 21.3 22.3 24.3 15.6 16.4 3EL2 009 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.3 21
12 9.6 2 550 27.4 28.7 29.8 31.8 34.2 36.9 39.3 45.5 25.0 26.3 3EL5 012 - 0 P D 2 1 - 4 xxx 1 144 67 2080 1450 240 605 248 4.6 51
15 12.0 2 750 30.6 32.1 33.3 35.6 38.3 40.9 42.8 49.0 27.9 29.5 3EL1 015 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.9 11
15 12.0 2 1100 27.7 29.0 29.7 31.7 33.8 35.8 37.5 42.5 25.7 27.0 3EL2 015 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1100 28.9 30.3 31.0 33.1 35.3 38.2 40.0 45.4 27.4 28.8 3EL2 015 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1200 28.0 29.4 30.0 31.7 33.8 35.4 37.1 40.5 26.0 27.3 3EL2 015 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
15 12.0 4 1200 29.9 31.3 32.0 33.8 36.0 37.8 39.6 43.2 27.7 29.2 3EL2 015 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
17.5 15 12.0 2 550 34.2 35.9 37.2 39.8 42.8 46.2 49.2 56.9 31.2 32.9 3EL5 015 - 0 P D 2 1 - 4 xxx 1 144 67 2080 1450 240 605 248 4.7 51
15 12.0 2 750 30.6 32.1 33.3 35.6 38.3 40.9 42.8 49.0 27.9 29.5 3EL1 015 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 7.9 11
15 12.0 2 1100 27.7 29.0 29.7 31.7 33.8 35.8 37.5 42.5 25.7 27.0 3EL2 015 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1100 28.9 30.3 31.0 33.1 35.3 38.2 40.0 45.4 27.4 28.8 3EL2 015 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
15 12.0 3 1200 28.0 29.4 30.0 31.7 33.8 35.4 37.1 40.5 26.0 27.3 3EL2 015 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
15 12.0 4 1200 29.9 31.3 32.0 33.8 36.0 37.8 39.6 43.2 27.7 29.2 3EL2 015 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.0 21
18 14.4 2 750 36.7 38.6 39.9 42.7 45.9 49.1 51.4 58.8 33.5 35.3 3EL1 018 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 8.6 11
18 14.4 2 1100 33.2 34.8 35.6 38.1 40.5 42.9 45.0 51.0 30.8 32.4 3EL2 018 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
18 14.4 3 1100 34.7 36.4 37.2 39.8 42.3 45.8 48.0 54.4 32.8 34.6 3EL2 018 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.8 21
Condition:
5
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
17.5 18 14.4 3 1200 33.6 35.2 36.0 38.1 40.5 42.5 44.6 48.6 31.2 32.8 3EL2 018 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.8 21
18 14.4 4 1200 35.9 37.6 38.4 40.6 43.2 45.4 47.5 51.8 33.3 35.0 3EL2 018 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.8 21
24 19.2 2 750 49.0 51.4 53.2 56.9 61.2 65.5 68.5 78.3 44.7 47.1 3EL1 024 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 9.4 11
24 19.2 2 1100 44.3 46.4 47.5 50.8 54.0 57.2 59.9 68.0 41.0 43.2 3EL2 024 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
24 19.2 3 1100 46.2 48.5 49.6 53.0 56.4 61.1 63.9 72.6 43.8 46.1 3EL2 024 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
24 19.2 3 1200 44.8 47.0 48.1 50.8 54.0 56.7 59.4 64.8 41.6 43.7 3EL2 024 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
24 19.2 4 1200 47.8 50.1 51.3 54.1 57.6 60.5 63.4 69.1 44.4 46.7 3EL2 024 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
24 18 14.4 2 550 41.0 43.1 44.6 47.7 51.3 55.4 59.0 68.2 37.4 39.5 3EL5 018 - 0 P F 2 1 - 4 xxx 1 184 86 1660 1160 300 900 318 5.3 51
21 16.8 2 550 47.9 50.3 52.1 55.7 59.9 64.6 68.8 79.6 43.7 46.1 3EL5 021 - 0 P F 2 1 - 4 xxx 1 184 86 1660 1160 300 900 318 5.4 51
21 16.8 2 750 42.8 45.0 46.6 49.8 53.6 57.3 60.0 68.5 39.1 41.2 3EL1 021 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 8.9 11
21 16.8 2 1100 38.7 40.6 41.6 44.4 47.3 50.1 52.4 59.5 35.9 37.8 3EL2 021 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
21 16.8 3 1100 40.5 42.4 43.4 46.4 49.4 53.4 55.9 63.5 38.3 40.3 3EL2 021 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
21 16.8 3 1200 39.2 41.1 42.1 44.4 47.3 49.6 52.0 56.7 36.4 38.3 3EL2 021 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
21 16.8 4 1200 41.8 43.8 44.9 47.4 50.4 52.9 55.4 60.5 38.8 40.8 3EL2 021 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
30 24.0 2 750 61.2 64.3 66.6 71.1 76.5 81.9 85.7 97.9 55.8 58.9 3EL1 030 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 9.8 12
30 24.0 2 1100 55.4 58.1 59.4 63.5 67.5 71.6 74.9 85.1 51.3 54.0 3EL2 030 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1100 57.8 60.6 62.0 66.3 70.5 76.3 79.9 90.7 54.7 57.6 3EL2 030 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1200 56.0 58.7 60.1 63.5 67.5 70.9 74.3 81.0 52.0 54.7 3EL2 030 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.3 21
30 24.0 4 1200 59.8 62.6 64.1 67.7 72.0 75.6 79.2 86.4 55.4 58.3 3EL2 030 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24 19.2 2 550 54.7 57.5 59.5 63.6 68.4 73.9 78.7 91.0 49.9 52.7 3EL5 024 - 0 P H 2 1 - 4 xxx 1 242 113 1250 870 400 1230 418 6.3 52
36 27 21.6 2 550 61.6 64.6 66.9 71.6 77.0 83.1 88.5 102 56.2 59.3 3EL5 027 - 0 P H 2 1 - 4 xxx 1 242 113 1250 870 400 1230 418 6.4 52
30 24.0 2 550 68.4 71.8 74.4 79.5 85.5 92.3 98.3 114 62.4 65.8 3EL5 030 - 0 P H 2 1 - 4 xxx 1 242 113 1250 870 400 1230 418 6.5 52
30 24.0 2 750 61.2 64.3 66.6 71.1 76.5 81.9 85.7 97.9 55.8 58.9 3EL1 030 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 9.8 12
30 24.0 2 1100 55.4 58.1 59.4 63.5 67.5 71.6 74.9 85.1 51.3 54.0 3EL2 030 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1100 57.8 60.6 62.0 66.3 70.5 76.3 79.9 90.7 54.7 57.6 3EL2 030 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1200 56.0 58.7 60.1 63.5 67.5 70.9 74.3 81.0 52.0 54.7 3EL2 030 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.3 21
30 24.0 4 1200 59.8 62.6 64.1 67.7 72.0 75.6 79.2 86.4 55.4 58.3 3EL2 030 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
33 26.4 2 550 75.2 79.0 81.8 87.5 94.1 102 108 125 68.7 72.4 3EL5 033 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.4 53
45 36 2 1100 83.0 87.1 89.1 95.2 101 107 112 128 77.0 81.0 3EL2 045 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.3 21
45 36 3 1100 86.7 90.9 93.1 99.4 106 114 120 136 82.1 86.4 3EL2 045 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.3 21
45 36 3 1200 84.0 88.1 90.1 95.2 101 106 111 122 78.0 82.0 3EL2 045 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 23.1 21
45 36 4 1200 89.6 94.0 96.1 102 108 113 119 130 83.2 87.5 3EL2 045 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 23.1 21
6
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
17.5 18 14.4 3 1200 33.6 35.2 36.0 38.1 40.5 42.5 44.6 48.6 31.2 32.8 3EL2 018 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.8 21
18 14.4 4 1200 35.9 37.6 38.4 40.6 43.2 45.4 47.5 51.8 33.3 35.0 3EL2 018 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 17.8 21
24 19.2 2 750 49.0 51.4 53.2 56.9 61.2 65.5 68.5 78.3 44.7 47.1 3EL1 024 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 9.4 11
24 19.2 2 1100 44.3 46.4 47.5 50.8 54.0 57.2 59.9 68.0 41.0 43.2 3EL2 024 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
24 19.2 3 1100 46.2 48.5 49.6 53.0 56.4 61.1 63.9 72.6 43.8 46.1 3EL2 024 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
24 19.2 3 1200 44.8 47.0 48.1 50.8 54.0 56.7 59.4 64.8 41.6 43.7 3EL2 024 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
24 19.2 4 1200 47.8 50.1 51.3 54.1 57.6 60.5 63.4 69.1 44.4 46.7 3EL2 024 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
24 18 14.4 2 550 41.0 43.1 44.6 47.7 51.3 55.4 59.0 68.2 37.4 39.5 3EL5 018 - 0 P F 2 1 - 4 xxx 1 184 86 1660 1160 300 900 318 5.3 51
21 16.8 2 550 47.9 50.3 52.1 55.7 59.9 64.6 68.8 79.6 43.7 46.1 3EL5 021 - 0 P F 2 1 - 4 xxx 1 184 86 1660 1160 300 900 318 5.4 51
21 16.8 2 750 42.8 45.0 46.6 49.8 53.6 57.3 60.0 68.5 39.1 41.2 3EL1 021 - 1 P C 2 1 - 4 xxx 1 183 85 3930 2750 305 900 315 8.9 11
21 16.8 2 1100 38.7 40.6 41.6 44.4 47.3 50.1 52.4 59.5 35.9 37.8 3EL2 021 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
21 16.8 3 1100 40.5 42.4 43.4 46.4 49.4 53.4 55.9 63.5 38.3 40.3 3EL2 021 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.4 21
21 16.8 3 1200 39.2 41.1 42.1 44.4 47.3 49.6 52.0 56.7 36.4 38.3 3EL2 021 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
21 16.8 4 1200 41.8 43.8 44.9 47.4 50.4 52.9 55.4 60.5 38.8 40.8 3EL2 021 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 18.6 21
30 24.0 2 750 61.2 64.3 66.6 71.1 76.5 81.9 85.7 97.9 55.8 58.9 3EL1 030 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 9.8 12
30 24.0 2 1100 55.4 58.1 59.4 63.5 67.5 71.6 74.9 85.1 51.3 54.0 3EL2 030 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1100 57.8 60.6 62.0 66.3 70.5 76.3 79.9 90.7 54.7 57.6 3EL2 030 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1200 56.0 58.7 60.1 63.5 67.5 70.9 74.3 81.0 52.0 54.7 3EL2 030 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.3 21
30 24.0 4 1200 59.8 62.6 64.1 67.7 72.0 75.6 79.2 86.4 55.4 58.3 3EL2 030 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24 19.2 2 550 54.7 57.5 59.5 63.6 68.4 73.9 78.7 91.0 49.9 52.7 3EL5 024 - 0 P H 2 1 - 4 xxx 1 242 113 1250 870 400 1230 418 6.3 52
36 27 21.6 2 550 61.6 64.6 66.9 71.6 77.0 83.1 88.5 102 56.2 59.3 3EL5 027 - 0 P H 2 1 - 4 xxx 1 242 113 1250 870 400 1230 418 6.4 52
30 24.0 2 550 68.4 71.8 74.4 79.5 85.5 92.3 98.3 114 62.4 65.8 3EL5 030 - 0 P H 2 1 - 4 xxx 1 242 113 1250 870 400 1230 418 6.5 52
30 24.0 2 750 61.2 64.3 66.6 71.1 76.5 81.9 85.7 97.9 55.8 58.9 3EL1 030 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 9.8 12
30 24.0 2 1100 55.4 58.1 59.4 63.5 67.5 71.6 74.9 85.1 51.3 54.0 3EL2 030 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1100 57.8 60.6 62.0 66.3 70.5 76.3 79.9 90.7 54.7 57.6 3EL2 030 - 2 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
30 24.0 3 1200 56.0 58.7 60.1 63.5 67.5 70.9 74.3 81.0 52.0 54.7 3EL2 030 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.3 21
30 24.0 4 1200 59.8 62.6 64.1 67.7 72.0 75.6 79.2 86.4 55.4 58.3 3EL2 030 - 6 P C 4 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 19.9 21
33 26.4 2 550 75.2 79.0 81.8 87.5 94.1 102 108 125 68.7 72.4 3EL5 033 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.4 53
45 36 2 1100 83.0 87.1 89.1 95.2 101 107 112 128 77.0 81.0 3EL2 045 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.3 21
45 36 3 1100 86.7 90.9 93.1 99.4 106 114 120 136 82.1 86.4 3EL2 045 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.3 21
45 36 3 1200 84.0 88.1 90.1 95.2 101 106 111 122 78.0 82.0 3EL2 045 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 23.1 21
45 36 4 1200 89.6 94.0 96.1 102 108 113 119 130 83.2 87.5 3EL2 045 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 23.1 21
3EL23EL23EL23EL23EL13EL5
To find the right arrester just follow the color codes
LD class
Long duration current impulse max. value / A
433222
12001200 1100
1100 750 550
7
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
48 36 28.8 2 550 82.1 86.2 89.3 95.4 103 111 118 136 74.9 79.0 3EL5 036 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.5 53
39 31.2 2 550 88.9 93.4 96.7 103 111 120 128 148 81.1 85.6 3EL5 039 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.6 53
52 42 34 2 550 95.8 101 104 111 120 129 138 159 87.4 92.2 3EL5 042 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.8 53
42 34 2 750 85.7 90.0 93.2 99.6 107 115 120 137 78.2 82.5 3EL1 042 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 10.3 12
42 34 2 1100 77.5 81.3 83.2 88.8 94.5 100 105 119 71.8 75.6 3EL2 042 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 21.0 21
42 34 3 1100 80.9 84.9 86.9 92.8 98.7 107 112 127 76.6 80.6 3EL2 042 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.3 21
42 34 3 1200 78.4 82.2 84.1 88.8 94.5 99.2 104 113 72.8 76.5 3EL2 042 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 20.5 21
42 34 4 1200 83.7 87.7 89.7 94.8 101 106 111 121 77.6 81.6 3EL2 042 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 23.1 21
45 36 2 550 103 108 112 119 128 139 147 171 93.6 98.8 3EL5 045 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.5 54
45 36 2 750 91.8 96.4 99.8 107 115 123 129 147 83.8 88.4 3EL1 045 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 10.9 12
48 38 2 550 109 115 119 127 137 148 157 182 99.9 105 3EL5 048 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.6 54
51 41 2 550 116 122 126 135 145 157 167 193 106 112 3EL5 051 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.7 54
54 43 2 1100 99.6 104 107 114 122 129 135 153 92.3 97.2 3EL2 054 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.8 21
54 43 3 1100 104 109 112 119 127 137 144 163 98.5 104 3EL2 054 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.4 21
54 43 3 1200 101 106 108 114 122 128 134 146 93.6 98.4 3EL2 054 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 23.8 21
54 43 4 1200 108 113 115 122 130 136 143 156 99.8 105 3EL2 054 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.4 21
72.5 54 43 2 550 123 129 134 143 154 166 177 205 112 119 3EL5 054 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.9 54
54 43 2 750 110 116 120 128 138 147 154 176 101 106 3EL1 054 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 11.4 13
57 46 2 550 130 136 141 151 162 175 187 216 119 125 3EL5 057 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 11.0 54
60 48 2 550 137 144 149 159 171 185 197 227 125 132 3EL5 060 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 11.1 54
60 48 2 750 122 129 133 142 153 164 171 196 112 118 3EL1 060 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 12.9 13
60 48 2 1100 111 116 119 127 135 143 150 170 103 108 3EL2 060 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.4 21
60 48 3 1100 116 121 124 133 141 153 160 181 109 115 3EL2 060 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.4 21
60 48 3 1200 112 117 120 127 135 142 149 162 104 109 3EL2 060 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.4 21
60 48 4 1200 120 125 128 135 144 151 158 173 111 117 3EL2 060 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.1 21
66 53 2 750 135 141 146 157 168 180 188 215 123 130 3EL1 066 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 12.9 13
66 53 2 1100 122 128 131 140 149 157 165 187 113 119 3EL2 066 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.9 21
66 53 3 1100 127 133 136 146 155 168 176 200 120 127 3EL2 066 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.9 21
66 53 3 1200 123 129 132 140 149 156 163 178 114 120 3EL2 066 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.1 21
66 53 4 1200 131 138 141 149 158 166 174 190 122 128 3EL2 066 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.7 21
72 58 2 550 164 172 179 191 205 222 236 273 150 158 3EL5 072 - 0 L K 2 2 - 4 xxx 2 604 280 490 340 1020 3190 1040 13.1 -
72 58 2 750 147 154 160 171 184 196 206 235 134 141 3EL1 072 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 13.2 13
72 58 2 1100 133 139 143 152 162 172 180 204 123 130 3EL2 072 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 26.5 21
72 58 3 1100 139 146 149 159 169 183 192 218 131 138 3EL2 072 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 27.0 21
72 58 3 1200 134 141 144 152 162 170 178 194 125 131 3EL2 072 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.7 21
72 58 4 1200 143 150 154 162 173 181 190 207 133 140 3EL2 072 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 26.3 22
8
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
48 36 28.8 2 550 82.1 86.2 89.3 95.4 103 111 118 136 74.9 79.0 3EL5 036 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.5 53
39 31.2 2 550 88.9 93.4 96.7 103 111 120 128 148 81.1 85.6 3EL5 039 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.6 53
52 42 34 2 550 95.8 101 104 111 120 129 138 159 87.4 92.2 3EL5 042 - 0 P K 2 1 - 4 xxx 1 302 140 980 680 510 1595 520 7.8 53
42 34 2 750 85.7 90.0 93.2 99.6 107 115 120 137 78.2 82.5 3EL1 042 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 10.3 12
42 34 2 1100 77.5 81.3 83.2 88.8 94.5 100 105 119 71.8 75.6 3EL2 042 - 2 P C 2 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 21.0 21
42 34 3 1100 80.9 84.9 86.9 92.8 98.7 107 112 127 76.6 80.6 3EL2 042 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.3 21
42 34 3 1200 78.4 82.2 84.1 88.8 94.5 99.2 104 113 72.8 76.5 3EL2 042 - 6 P C 3 1 - 4 xxx 1 235 109 8290 5800 482 1470 405 20.5 21
42 34 4 1200 83.7 87.7 89.7 94.8 101 106 111 121 77.6 81.6 3EL2 042 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 23.1 21
45 36 2 550 103 108 112 119 128 139 147 171 93.6 98.8 3EL5 045 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.5 54
45 36 2 750 91.8 96.4 99.8 107 115 123 129 147 83.8 88.4 3EL1 045 - 1 P E 2 1 - 4 xxx 1 264 123 2690 1880 445 1400 455 10.9 12
48 38 2 550 109 115 119 127 137 148 157 182 99.9 105 3EL5 048 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.6 54
51 41 2 550 116 122 126 135 145 157 167 193 106 112 3EL5 051 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.7 54
54 43 2 1100 99.6 104 107 114 122 129 135 153 92.3 97.2 3EL2 054 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.8 21
54 43 3 1100 104 109 112 119 127 137 144 163 98.5 104 3EL2 054 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.4 21
54 43 3 1200 101 106 108 114 122 128 134 146 93.6 98.4 3EL2 054 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 23.8 21
54 43 4 1200 108 113 115 122 130 136 143 156 99.8 105 3EL2 054 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.4 21
72.5 54 43 2 550 123 129 134 143 154 166 177 205 112 119 3EL5 054 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 10.9 54
54 43 2 750 110 116 120 128 138 147 154 176 101 106 3EL1 054 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 11.4 13
57 46 2 550 130 136 141 151 162 175 187 216 119 125 3EL5 057 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 11.0 54
60 48 2 550 137 144 149 159 171 185 197 227 125 132 3EL5 060 - 0 P H 2 2 - 4 xxx 2 484 226 620 430 800 2460 836 11.1 54
60 48 2 750 122 129 133 142 153 164 171 196 112 118 3EL1 060 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 12.9 13
60 48 2 1100 111 116 119 127 135 143 150 170 103 108 3EL2 060 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.4 21
60 48 3 1100 116 121 124 133 141 153 160 181 109 115 3EL2 060 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.4 21
60 48 3 1200 112 117 120 127 135 142 149 162 104 109 3EL2 060 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 24.4 21
60 48 4 1200 120 125 128 135 144 151 158 173 111 117 3EL2 060 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.1 21
66 53 2 750 135 141 146 157 168 180 188 215 123 130 3EL1 066 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 12.9 13
66 53 2 1100 122 128 131 140 149 157 165 187 113 119 3EL2 066 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.9 21
66 53 3 1100 127 133 136 146 155 168 176 200 120 127 3EL2 066 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.9 21
66 53 3 1200 123 129 132 140 149 156 163 178 114 120 3EL2 066 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.1 21
66 53 4 1200 131 138 141 149 158 166 174 190 122 128 3EL2 066 - 6 P F 4 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.7 21
72 58 2 550 164 172 179 191 205 222 236 273 150 158 3EL5 072 - 0 L K 2 2 - 4 xxx 2 604 280 490 340 1020 3190 1040 13.1 -
72 58 2 750 147 154 160 171 184 196 206 235 134 141 3EL1 072 - 1 P H 2 1 - 4 xxx 1 365 170 1930 1350 620 2050 630 13.2 13
72 58 2 1100 133 139 143 152 162 172 180 204 123 130 3EL2 072 - 2 P F 2 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 26.5 21
72 58 3 1100 139 146 149 159 169 183 192 218 131 138 3EL2 072 - 2 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 27.0 21
72 58 3 1200 134 141 144 152 162 170 178 194 125 131 3EL2 072 - 6 P F 3 1 - 4 xxx 1 365 170 5670 3970 705 2340 630 25.7 21
72 58 4 1200 143 150 154 162 173 181 190 207 133 140 3EL2 072 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 26.3 22
3EL23EL23EL23EL23EL13EL5
To find the right arrester just follow the color codes
LD class
Long duration current impulse max. value / A
433222
12001200 1100
1100 750 550
9
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
123 96 77 2 550 219 230 238 254 274 295 315 364 200 211 3EL5 096 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 18.2 -
96 77 2 750 196 206 213 228 245 262 274 313 179 188 3EL1 096 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 16.8 13
96 77 2 1100 177 186 190 203 216 229 240 272 164 173 3EL2 096 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 32.9 22
96 77 3 1100 185 194 199 212 226 244 256 290 175 184 3EL2 096 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.4 22
96 77 3 1200 179 188 192 203 216 227 238 259 166 175 3EL2 096 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 31.3 22
96 77 4 1200 191 200 205 217 230 242 253 276 177 187 3EL2 096 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 32.6 22
102 82 2 550 233 244 253 270 291 314 334 387 212 224 3EL5 102 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 18.4 -
102 82 2 750 208 218 226 242 260 278 291 333 190 200 3EL1 102 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 17.5 13
102 82 2 1100 188 197 202 216 230 243 255 289 174 184 3EL2 102 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.4 22
102 82 3 1100 197 206 211 225 240 259 272 308 186 196 3EL2 102 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.0 22
102 82 3 1200 190 200 204 216 230 241 252 275 177 186 3EL2 102 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 31.9 22
102 82 4 1200 203 213 218 230 245 257 269 294 188 198 3EL2 102 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.2 22
108 86 2 550 246 259 268 286 308 332 354 409 225 237 3EL5 108 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 18.7 -
108 86 2 750 220 231 240 256 275 295 308 353 201 212 3EL1 108 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 18.3 13
108 86 2 1100 199 209 214 228 243 258 270 306 185 194 3EL2 108 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.0 22
108 86 3 1100 208 218 223 239 254 275 288 327 197 207 3EL2 108 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.5 22
108 86 3 1200 202 211 216 228 243 255 267 292 187 197 3EL2 108 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 32.6 22
108 86 4 1200 215 226 231 244 259 272 285 311 200 210 3EL2 108 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.9 22
145 111 89 2 750 226 238 246 263 283 303 317 362 207 218 3EL1 111 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 19.0 13
120 96 2 750 245 257 266 285 306 327 343 392 223 236 3EL1 120 - 1 P H 2 2 - 4 xxx 2 731 340 960 670 1245 4100 1260 22.5 14
120 96 2 1100 221 232 238 254 270 286 300 340 205 216 3EL2 120 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 35.1 22
120 96 3 1100 231 243 248 265 282 305 320 363 219 230 3EL2 120 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 35.6 22
120 96 3 1200 224 235 240 254 270 284 297 324 208 219 3EL2 120 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.5 22
120 96 4 1200 239 251 256 271 288 302 317 346 222 233 3EL2 120 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 35.2 22
126 101 2 550 287 302 312 334 359 388 413 478 262 277 3EL5 126 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 19.4 -
132 106 2 750 269 283 293 313 337 360 377 431 246 259 3EL1 132 - 1 P H 2 2 - 4 xxx 2 731 340 960 670 1245 4100 1260 25.7 14
132 106 2 1100 244 255 261 279 297 315 330 374 226 238 3EL2 132 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 36.2 22
132 106 3 1100 254 267 273 292 310 336 352 399 241 253 3EL2 132 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 38.8 22
132 106 3 1200 247 258 264 279 297 312 327 356 229 241 3EL2 132 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 37.3 22
132 106 4 1200 263 276 282 298 317 333 348 380 244 257 3EL2 132 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 37.9 22
144 115 2 750 294 308 319 341 367 393 411 470 268 283 3EL1 144 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 1525 5125 1260 26.1 14
144 115 2 1100 266 279 285 305 324 343 360 408 246 259 3EL2 144 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 39.4 22
144 115 3 1100 277 291 298 318 338 366 384 435 263 276 3EL2 144 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 40.5 22
144 115 3 1200 269 282 288 305 324 340 356 389 249 262 3EL2 144 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 38.6 22
144 115 4 1200 287 301 308 325 346 363 380 415 266 280 3EL2 144 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 39.2 22
10
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
123 96 77 2 550 219 230 238 254 274 295 315 364 200 211 3EL5 096 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 18.2 -
96 77 2 750 196 206 213 228 245 262 274 313 179 188 3EL1 096 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 16.8 13
96 77 2 1100 177 186 190 203 216 229 240 272 164 173 3EL2 096 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 32.9 22
96 77 3 1100 185 194 199 212 226 244 256 290 175 184 3EL2 096 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.4 22
96 77 3 1200 179 188 192 203 216 227 238 259 166 175 3EL2 096 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 31.3 22
96 77 4 1200 191 200 205 217 230 242 253 276 177 187 3EL2 096 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 32.6 22
102 82 2 550 233 244 253 270 291 314 334 387 212 224 3EL5 102 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 18.4 -
102 82 2 750 208 218 226 242 260 278 291 333 190 200 3EL1 102 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 17.5 13
102 82 2 1100 188 197 202 216 230 243 255 289 174 184 3EL2 102 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.4 22
102 82 3 1100 197 206 211 225 240 259 272 308 186 196 3EL2 102 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.0 22
102 82 3 1200 190 200 204 216 230 241 252 275 177 186 3EL2 102 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 31.9 22
102 82 4 1200 203 213 218 230 245 257 269 294 188 198 3EL2 102 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.2 22
108 86 2 550 246 259 268 286 308 332 354 409 225 237 3EL5 108 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 18.7 -
108 86 2 750 220 231 240 256 275 295 308 353 201 212 3EL1 108 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 18.3 13
108 86 2 1100 199 209 214 228 243 258 270 306 185 194 3EL2 108 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.0 22
108 86 3 1100 208 218 223 239 254 275 288 327 197 207 3EL2 108 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.5 22
108 86 3 1200 202 211 216 228 243 255 267 292 187 197 3EL2 108 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 32.6 22
108 86 4 1200 215 226 231 244 259 272 285 311 200 210 3EL2 108 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 33.9 22
145 111 89 2 750 226 238 246 263 283 303 317 362 207 218 3EL1 111 - 1 P K 2 1 - 4 xxx 1 528 246 1330 930 900 3075 910 19.0 13
120 96 2 750 245 257 266 285 306 327 343 392 223 236 3EL1 120 - 1 P H 2 2 - 4 xxx 2 731 340 960 670 1245 4100 1260 22.5 14
120 96 2 1100 221 232 238 254 270 286 300 340 205 216 3EL2 120 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 35.1 22
120 96 3 1100 231 243 248 265 282 305 320 363 219 230 3EL2 120 - 2 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 35.6 22
120 96 3 1200 224 235 240 254 270 284 297 324 208 219 3EL2 120 - 6 P J 3 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 34.5 22
120 96 4 1200 239 251 256 271 288 302 317 346 222 233 3EL2 120 - 6 P J 4 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 35.2 22
126 101 2 550 287 302 312 334 359 388 413 478 262 277 3EL5 126 - 0 L K 2 3 - 4 xxx 3 906 420 320 220 1530 4785 1560 19.4 -
132 106 2 750 269 283 293 313 337 360 377 431 246 259 3EL1 132 - 1 P H 2 2 - 4 xxx 2 731 340 960 670 1245 4100 1260 25.7 14
132 106 2 1100 244 255 261 279 297 315 330 374 226 238 3EL2 132 - 2 P J 2 1 - 4 xxx 1 571 266 3760 2630 1062 3820 985 36.2 22
132 106 3 1100 254 267 273 292 310 336 352 399 241 253 3EL2 132 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 38.8 22
132 106 3 1200 247 258 264 279 297 312 327 356 229 241 3EL2 132 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 37.3 22
132 106 4 1200 263 276 282 298 317 333 348 380 244 257 3EL2 132 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 37.9 22
144 115 2 750 294 308 319 341 367 393 411 470 268 283 3EL1 144 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 1525 5125 1260 26.1 14
144 115 2 1100 266 279 285 305 324 343 360 408 246 259 3EL2 144 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 39.4 22
144 115 3 1100 277 291 298 318 338 366 384 435 263 276 3EL2 144 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 40.5 22
144 115 3 1200 269 282 288 305 324 340 356 389 249 262 3EL2 144 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 38.6 22
144 115 4 1200 287 301 308 325 346 363 380 415 266 280 3EL2 144 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 1240 4495 1165 39.2 22
3EL23EL23EL23EL23EL13EL5
To find the right arrester just follow the color codes
LD class
Long duration current impulse max. value / A
433222
12001200 1100
1100 750 550
11
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Grading ring diam-
eter[D]
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
170 138 110 2 750 282 296 306 327 352 377 394 450 257 271 3EL1 138 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 - 1525 5125 1260 25.9 14
138 110 2 1100 255 267 273 292 311 329 345 391 236 248 3EL2 138 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 38.8 22
138 110 3 1100 266 279 285 305 324 351 368 417 252 265 3EL2 138 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.4 22
138 110 3 1200 258 270 276 292 311 326 342 373 239 252 3EL2 138 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 37.9 22
138 110 4 1200 275 288 295 311 331 348 364 397 255 268 3EL2 138 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 38.6 22
144 115 2 750 294 308 319 341 367 393 411 470 268 283 3EL1 144 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 - 1525 5125 1260 26.1 14
144 115 2 1100 266 279 285 305 324 343 360 408 246 259 3EL2 144 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.4 22
144 115 3 1100 277 291 298 318 338 366 384 435 263 276 3EL2 144 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 40.5 22
144 115 3 1200 269 282 288 305 324 340 356 389 249 262 3EL2 144 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 38.6 22
144 115 4 1200 287 301 308 325 346 363 380 415 266 280 3EL2 144 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.2 22
150 120 2 750 306 321 333 356 383 409 428 490 279 295 3EL1 150 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 - 1525 5125 1260 26.5 14
150 120 2 1100 277 290 297 317 338 358 375 425 257 270 3EL2 150 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.9 22
156 125 3 1100 301 315 323 345 367 397 416 472 285 300 3EL2 156 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 41.6 22
156 125 3 1200 291 305 312 330 351 369 386 421 270 284 3EL2 156 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.9 22
156 125 4 1200 311 326 333 352 374 393 412 449 288 303 3EL2 156 - 6 P P 4 2 - 4 xxx 2 806 375 2590 1810 - 1544 5290 1390 48.4 -
245 192 154 2 750 392 411 426 455 490 524 548 627 357 377 3EL1 192 - 1 P K 2 2 - 4 xxx 2 1056 492 660 460 - 1805 6150 1519 30.9 14
192 154 2 1100 354 372 380 406 432 458 480 544 328 346 3EL2 192 - 2 P Q 2 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 54.8 -
192 154 3 1100 370 388 397 424 451 488 511 581 350 369 3EL2 192 - 2 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 55.4 -
192 154 3 1200 359 376 384 406 432 454 475 518 333 350 3EL2 192 - 6 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 52.9 -
192 154 4 1200 382 401 410 433 461 484 507 553 355 373 3EL2 192 - 6 P Q 4 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 54.2 -
198 158 2 1100 365 383 392 419 446 472 495 561 339 356 3EL2 198 - 2 P Q 2 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 55.4 -
198 158 3 1100 382 400 409 437 465 504 527 599 361 380 3EL2 198 - 2 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 55.9 -
198 158 3 1200 370 388 396 419 446 468 490 535 343 361 3EL2 198 - 6 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 53.6 -
198 158 4 1200 394 413 423 447 475 499 523 570 366 385 3EL2 198 - 6 P J 4 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 58.5 23
228 182 2 1100 421 441 451 482 513 544 569 646 390 410 3EL2 228 - 2 P J 2 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 62.3 23
228 182 3 1100 439 461 472 504 536 580 607 689 416 438 3EL2 228 - 2 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 63.4 23
228 182 3 1200 426 446 457 482 513 539 564 616 395 416 3EL2 228 - 6 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 60.5 23
228 182 4 1200 454 476 487 514 547 575 602 657 421 443 3EL2 228 - 6 P W 4 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 63.2 23
300 228 182 2 1100 421 441 451 482 513 544 569 646 390 410 3EL2 228 - 2 P J 2 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 62.3 23
228 182 3 1100 439 461 472 504 536 580 607 689 416 438 3EL2 228 - 2 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 63.4 23
228 182 3 1200 426 446 457 482 513 539 564 616 395 416 3EL2 228 - 6 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 60.5 23
228 182 4 1200 454 476 487 514 547 575 602 657 421 443 3EL2 228 - 6 P W 4 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 63.2 23
240 192 2 1100 443 464 475 508 540 572 599 680 410 432 3EL2 240 - 2 P J 2 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 63.4 23
240 192 3 1100 462 485 496 530 564 611 639 726 438 461 3EL2 240 - 2 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 64.5 23
240 192 3 1200 448 470 481 508 540 567 594 648 416 437 3EL2 240 - 6 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 61.7 23
240 192 4 1200 478 501 513 541 576 605 634 691 444 467 3EL2 240 - 6 P W 4 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 65.2 23
362 276 221 3 1200 515 540 553 584 621 652 683 745 478 503 3EL2 276 - 6 P W 3 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 67.1 23
276 221 4 1200 550 576 590 623 662 696 729 795 510 537 3EL2 276 - 6 P M 4 2 - 4 xxx 2 1352 629 1610 1120 800 2480 8990 1925 70.5 23
288 230 3 1200 538 564 577 609 648 680 713 778 499 525 3EL2 288 - 6 P M 3 2 - 4 xxx 2 1352 629 1610 1120 800 2480 8990 1925 69.9 23
288 230 4 1200 574 601 615 650 691 726 760 829 532 560 3EL2 288 - 6 P M 4 2 - 4 xxx 2 1352 629 1610 1120 800 2480 8990 1925 71.8 23
420 336 269 3 1100 647 679 695 742 790 855 895 1016 613 645 3EL2 336 - 2 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 90.7 24
336 269 3 1200 627 658 673 711 756 794 832 907 582 612 3EL2 336 - 6 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 86.4 24
336 269 4 1200 669 702 718 758 806 847 887 968 621 653 3EL2 336 - 6 P J 4 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 88.3 24
360 288 3 1100 694 728 744 795 846 916 959 1089 657 691 3EL2 360 - 2 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 93.4 24
360 288 3 1200 672 705 721 761 810 851 891 972 624 656 3EL2 360 - 6 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 89.0 24
360 288 4 1200 717 752 769 812 864 907 950 1037 665 700 3EL2 360 - 6 L M 4 3 - 4 xxx 3 2028 945 1070 750 1200 3720 13485 2960 96.1 -
550 420 336 4 1200 837 877 897 948 1008 1058 1109 1210 776 816 3EL2 420 - 6 L M 4 3 - 4 xxx 3 2028 945 1070 750 1200 3720 13485 2960 116.0 -
12
Highest voltage
for equip-ment
Rated voltage
Continuous operating
voltage
Line discharge
class
Long- duration current
2 ms
Maximum values of the residual voltages at discharge currents of the following impulses
Arrester type Number of units
Housing insulation
Specified short-term
load SSL (Fdyn)
Specified long-term load SLL (Fstat)
Grading ring diam-
eter[D]
Height (H)
Creepage distance
Flashoverdistance
Weight Figure
Um kV
Ur kV
Uc kV LD CIass I
30/60 µs 1 kA kV
30/60 µs 2 kA kV
30/60 µs 3 kA kV
8/20 µs 5 kA kV
8/20 µs 10 kA
kV
8/20 µs 15 kA
kV
8/20 µs 20 kA
kV
8/20 µs 40 kA
kV
30/60 µs 0.125 kA
kV
30/60 µs 0.5 kA
kV
Lightning impulse withstand voltage
1.2/50 µs kV
Power fre quency withstand voltage
1 min. wet kV N N mm mm mm kg
170 138 110 2 750 282 296 306 327 352 377 394 450 257 271 3EL1 138 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 - 1525 5125 1260 25.9 14
138 110 2 1100 255 267 273 292 311 329 345 391 236 248 3EL2 138 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 38.8 22
138 110 3 1100 266 279 285 305 324 351 368 417 252 265 3EL2 138 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.4 22
138 110 3 1200 258 270 276 292 311 326 342 373 239 252 3EL2 138 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 37.9 22
138 110 4 1200 275 288 295 311 331 348 364 397 255 268 3EL2 138 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 38.6 22
144 115 2 750 294 308 319 341 367 393 411 470 268 283 3EL1 144 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 - 1525 5125 1260 26.1 14
144 115 2 1100 266 279 285 305 324 343 360 408 246 259 3EL2 144 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.4 22
144 115 3 1100 277 291 298 318 338 366 384 435 263 276 3EL2 144 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 40.5 22
144 115 3 1200 269 282 288 305 324 340 356 389 249 262 3EL2 144 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 38.6 22
144 115 4 1200 287 301 308 325 346 363 380 415 266 280 3EL2 144 - 6 P M 4 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.2 22
150 120 2 750 306 321 333 356 383 409 428 490 279 295 3EL1 150 - 1 P Q 2 2 - 4 xxx 2 893 340 780 550 - 1525 5125 1260 26.5 14
150 120 2 1100 277 290 297 317 338 358 375 425 257 270 3EL2 150 - 2 P M 2 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.9 22
156 125 3 1100 301 315 323 345 367 397 416 472 285 300 3EL2 156 - 2 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 41.6 22
156 125 3 1200 291 305 312 330 351 369 386 421 270 284 3EL2 156 - 6 P M 3 1 - 4 xxx 1 676 315 3220 2250 - 1240 4495 1165 39.9 22
156 125 4 1200 311 326 333 352 374 393 412 449 288 303 3EL2 156 - 6 P P 4 2 - 4 xxx 2 806 375 2590 1810 - 1544 5290 1390 48.4 -
245 192 154 2 750 392 411 426 455 490 524 548 627 357 377 3EL1 192 - 1 P K 2 2 - 4 xxx 2 1056 492 660 460 - 1805 6150 1519 30.9 14
192 154 2 1100 354 372 380 406 432 458 480 544 328 346 3EL2 192 - 2 P Q 2 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 54.8 -
192 154 3 1100 370 388 397 424 451 488 511 581 350 369 3EL2 192 - 2 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 55.4 -
192 154 3 1200 359 376 384 406 432 454 475 518 333 350 3EL2 192 - 6 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 52.9 -
192 154 4 1200 382 401 410 433 461 484 507 553 355 373 3EL2 192 - 6 P Q 4 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 54.2 -
198 158 2 1100 365 383 392 419 446 472 495 561 339 356 3EL2 198 - 2 P Q 2 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 55.4 -
198 158 3 1100 382 400 409 437 465 504 527 599 361 380 3EL2 198 - 2 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 55.9 -
198 158 3 1200 370 388 396 419 446 468 490 535 343 361 3EL2 198 - 6 P Q 3 2 - 4 xxx 2 936 436 2260 1580 - 1767 6160 1615 53.6 -
198 158 4 1200 394 413 423 447 475 499 523 570 366 385 3EL2 198 - 6 P J 4 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 58.5 23
228 182 2 1100 421 441 451 482 513 544 569 646 390 410 3EL2 228 - 2 P J 2 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 62.3 23
228 182 3 1100 439 461 472 504 536 580 607 689 416 438 3EL2 228 - 2 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 63.4 23
228 182 3 1200 426 446 457 482 513 539 564 616 395 416 3EL2 228 - 6 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 60.5 23
228 182 4 1200 454 476 487 514 547 575 602 657 421 443 3EL2 228 - 6 P W 4 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 63.2 23
300 228 182 2 1100 421 441 451 482 513 544 569 646 390 410 3EL2 228 - 2 P J 2 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 62.3 23
228 182 3 1100 439 461 472 504 536 580 607 689 416 438 3EL2 228 - 2 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 63.4 23
228 182 3 1200 426 446 457 482 513 539 564 616 395 416 3EL2 228 - 6 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 60.5 23
228 182 4 1200 454 476 487 514 547 575 602 657 421 443 3EL2 228 - 6 P W 4 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 63.2 23
240 192 2 1100 443 464 475 508 540 572 599 680 410 432 3EL2 240 - 2 P J 2 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 63.4 23
240 192 3 1100 462 485 496 530 564 611 639 726 438 461 3EL2 240 - 2 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 64.5 23
240 192 3 1200 448 470 481 508 540 567 594 648 416 437 3EL2 240 - 6 P J 3 2 - 4 xxx 2 1142 532 1880 1310 800 2124 7640 1585 61.7 23
240 192 4 1200 478 501 513 541 576 605 634 691 444 467 3EL2 240 - 6 P W 4 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 65.2 23
362 276 221 3 1200 515 540 553 584 621 652 683 745 478 503 3EL2 276 - 6 P W 3 2 - 4 xxx 2 1247 581 1730 1210 800 2302 8315 1750 67.1 23
276 221 4 1200 550 576 590 623 662 696 729 795 510 537 3EL2 276 - 6 P M 4 2 - 4 xxx 2 1352 629 1610 1120 800 2480 8990 1925 70.5 23
288 230 3 1200 538 564 577 609 648 680 713 778 499 525 3EL2 288 - 6 P M 3 2 - 4 xxx 2 1352 629 1610 1120 800 2480 8990 1925 69.9 23
288 230 4 1200 574 601 615 650 691 726 760 829 532 560 3EL2 288 - 6 P M 4 2 - 4 xxx 2 1352 629 1610 1120 800 2480 8990 1925 71.8 23
420 336 269 3 1100 647 679 695 742 790 855 895 1016 613 645 3EL2 336 - 2 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 90.7 24
336 269 3 1200 627 658 673 711 756 794 832 907 582 612 3EL2 336 - 6 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 86.4 24
336 269 4 1200 669 702 718 758 806 847 887 968 621 653 3EL2 336 - 6 P J 4 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 88.3 24
360 288 3 1100 694 728 744 795 846 916 959 1089 657 691 3EL2 360 - 2 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 93.4 24
360 288 3 1200 672 705 721 761 810 851 891 972 624 656 3EL2 360 - 6 P J 3 3 - 4 xxx 3 1713 798 1250 870 1200 3186 11460 2506 89.0 24
360 288 4 1200 717 752 769 812 864 907 950 1037 665 700 3EL2 360 - 6 L M 4 3 - 4 xxx 3 2028 945 1070 750 1200 3720 13485 2960 96.1 -
550 420 336 4 1200 837 877 897 948 1008 1058 1109 1210 776 816 3EL2 420 - 6 L M 4 3 - 4 xxx 3 2028 945 1070 750 1200 3720 13485 2960 116.0 -
13
Always the right housings
3EL5
Fig. 51 Fig. 52 Fig. 53 Fig. 54
Fig. 23 Fig. 24Fig. 22Fig. 21
Fig. 11 Fig. 12 Fig. 13 Fig. 14
3EL2
3EL1
14
3EL2xxx-xxxxx-xAxx Metal plate
(connection with cable eye)
3EL2xxx-xxxxx-xYxx DIN/NEMA flat terminal
Line terminals
3EL5xxx-xxxxx-xYxx DIN/NEMA flat terminal
3EL1xxx-xxxxx-xYxx DIN/NEMA flat terminal
3EL2xxx-xxxxx-xDxx Terminal stud
Ø30
80
M10
Other line terminals on request
80
50
40
14
80
50
40
100
11
4
50
40
50
40
14
80
50
40
14
80
50
40
15
Installation and grounding
3EL5/1xxx-xxxxx-xxx5
3 mounting holes (Ø 14 mm), for 3x M12 bolts, bolt circle 200–254 mm, (8.75"–10") for directly grounded installation
3EL5/1xxx-xxxxx-xxx1
3 mounting holes (Ø 14 mm), for 3x M12 bolts, bolt circle 200–254 mm, (8.75"–10") for insulated installation
Ø13 (3x)
Ø200-254
60
Ø13 (3x)44
.5
Ø200-254
60
Ø13 (3x)
44.5
16
Installation and grounding
3EL2xxx-xxxxx-xxx0
4 mounting holes (Ø 12 mm), for 4x M10 bolts, hole distance 99 mm x 99 mm for directly grounded installation
3EL2xxx-xxxxx-xxx1
3 mounting holes (Ø 14 mm), for 3x M12 bolts, hole distance 200–276 mm circle for insulated installation
3EL2xxx-xxxxx-xxx2
4 mounting holes (Ø 18 mm), for 4x M16 bolts, hole distance 200 mm x 200 mm for insulated installation
3EL2xxx-xxxxx-xxx3
4 mounting holes (Ø 22 mm), for 4x M20 bolts, hole distance 310 mm x 310 mm for insulated installation
3EL2xxx-xxxxx-xxx5
3 mounting holes (Ø 14 mm), for 3x M12 bolts, hole distance 200–276 mm circle (8.75"–10.85") for grounded installation
Ø200
Ø276
M12
60
44.5
14
120
°
M10 (4x)
M12 (3x)
M20 (4x)
12
72
30
10 30
70
M16 (4x)
Ø140
99
99
60
44
.5
M16 (4x)
26
0
20
0
260
200
Ø200
Ø276
M12
60
44.5
14
120
°
M12 (3x)
M20 (4x)310
60
44
.5
38
0
31
0
M12
380
M12 M12 (3x)
17
Surge counter Order number: 3EX5030
Surge counter with leakage current meter Order number: 3EX5050
SensorOrder number: 3EX5060
Display Order number: 3EX5062
Connecting lead*Order number: 3EX5963-xx
Sensor Display
Up to 200 m
Arrester condition monitor (ACM) basic Order number: 3EX5080-0
Arrester condition monitor (ACM) advanced Order number: 3EX5080-1 Order number: 3EX5085 (USB wireless module)
Control devices for surge arrestersThese control devices can be connected to all shown surge arresters in this catalogue
Arrester condition indicator (ACI)
The arrester condition indicator shows the arrester status at a glance. Its easy-to-understand “traffic light” visualization is based on a 3rd-harmonic-evaluation of the leakage current.
Order number: 3EX5070
Control spark gap
To estimate the current that flows through the surge arrester in case of an overvoltage and to count the surges.
Order number: 3EX6040
Surge counter with leakage current meter
Surge counter
LCM 500
LCM 500, system for live condition check of metal oxide surge arresters
ACM basic ACM advanced
*Required for operation Available in different lengths
18
The top row in table 3 shows an example of the build-up of our order numbers. Not all combinations are possible.
Number of units1 unit
2 units
3 units
Line discharge classLD 2
LD 3
LD 4
ApplicationPhase surge arrester
Neutral point surge arrester
Transmission line surge arrester
Long-duration current max. values550 A
750 A
1100 A
1200 A
Housing size of single unit
High-voltage terminal Metal plate (connection with cable eye)
Bolt, 30 mm diameter, 80 mm long, stainless steel
DIN/NEMA flat, 100 mm x 100 mm, stainless steel
Form of shedsAlternating sheds
–
MountingNot insulated, 99 mm x 99 mm, M10 (only 3EL2)
3-hole, insulated, Ø 200–276 mm / Ø 8.75"–10.85", M12 (3EL2) Ø 200–254 mm / Ø 8.75"–10.00", M12 (3EL1 / 3EL5)
4-hole, insulated, 200 mm x 200 mm, M16 (only 3EL2)
4-hole, insulated, 310 x 310 mm, M20 (only 3EL2)
Not insulated, Ø 200–276 mm / Ø 8.75"–10.85", M12 (3EL2), Ø 200–254 mm / Ø 8.75"–10.00", M12 (3EL1 / 3EL5)
Name plateGerman / English (IEC)
English (ANSI)
Other languages
Rated voltage in kV
Silicone rubber-housed surge arrester cage design 3 E L
125
120
3 E L 2 120 – 2 P M 3 2 – 4 D A 1Order number (example)
Surge arrester modelBending moment 1.2 kNm
Bending moment 4 kNm
Bending moment 0.5 kNm
– –
0126
PSL
M
234
123
4
AHZ
01235
ADY
–
19
Published by and copyright © 2011: Siemens AG Energy Sector Freyeslebenstrasse 1 91058 Erlangen, Germany
Siemens AG Energy Sector Power Transmission Division High Voltage Products Nonnendammallee 104 13629 Berlin, Germany www.siemens.com/energy/arrester
For more information, please contact us at: Phone: +49 30 386 33 222 Fax: +49 30 386 26 721 E-Mail: [email protected]
Power Transmission Division Order No. E50001-G630-A142-V1-4A00 Printed in Germany Dispo 30002, c4bs No. 7457 fb 3931 WÜ 472523 WS 09111.0
Printed on elementary chlorine-free bleached paper.
All rights reserved. Trademarks mentioned in this document are the property of Siemens AG, its affiliates, or their respective owners.
Subject to change without prior notice. The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract.
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