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Technical Data
Disconnect Switch and Circuit Breaker Mechanism SpecificationsBulletin Number 1494
Bulletin 1494H Heavy-Duty Safety Switches Type 1 (Enclosure Code “A”) General-Purpose Painted Metal Enclosures 20
Bulletin 1494H Heavy-Duty Safety Switches Type 3R (Enclosure Code “N”) Rain-Proof Painted Metal Enclosures 21
Bulletin 1494H Heavy-Duty Safety Switches Type 12 (Enclosure Code "F") Dust-Tight Painted Metal Enclosures 22
Bulletin 1494HL General Duty Safety Switches Type 1 (Enclosure Code “A”) General-Purpose Painted Metal Enclosures 23
Disconnect Switch and Circuit Breaker Mechanism Specifications
Summary of Changes
This publication contains new and updated information as indicated in the following table.
Additional Resources
These documents contain additional information concerning related products from Rockwell Automation®.
You can view or download publications at http://www.rockwellautomation.com/global/literature-library/overview.page. To order paper copies of technical documentation, contact your local Allen-Bradley® distributor or Rockwell Automation sales representative.
Topic Page
Updated 1494U specifications 3
Resource Description
Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system.
Product Certifications website, http://www.rockwellautomation.com/global/certification/overview.page Provides declarations of conformity, certificates, and other certification details.
2 Rockwell Automation Publication 1494-TD001E-EN-P - February 2016
Switch Size 30 A 60 A 100 A 200 A 400 A 600 ARated Insulation Voltage (UL) IEC - Ui (600) 660V
RatingsUL/CSA/NEMA
Hp
230V/60 Hz460V/60 Hz575V/60 Hz
7.51520
153050
306075
60125150
125250350
200400500
250V DC 5 10 20 40 50 50ContinuousCurrent, Ithe
600V AC250V DC 30 60 100 200 400 600
RatingsIEC Applications
Maximum kW(AC23)
220V/50 Hz440V/50 Hz550V/50 Hz
5.51115
112237
224555
4890
110
90185257
150295375
Auxiliary Contact Electrical Ratings
Standard Contact 1 N.O. or 1 N.C.(1)
(1) When using a N.C. contact with a 400 A switch in a PLC sensing circuit, a false indicator may occur. To avoid the false indicator, add a 30 ms time delay into the circuit or add a N.O. contact next to the N.C. contact.
NEMA/EEMAC A600, Q600IEC AC 15, DC 13 to IEC/EN60947-5-1 and UL 508, 17V, 5 mA minimum
Low Level Contact 1 N.O. or 1 N.C.(1) NEMA/EEMAC C300, R150IEC AC 15, DC 13 to IEC/EN60947-5-1 and UL 508, 5V, 1 mA minimum
Electrical Interlock Ratings
Standard Contact 1 N.O. and 1 N.C.2 N.O. and 2 N.C. NEMA/EEMAC 20 A: 480V AC, 0.25 A: 250V DC
Mechanical
Degree of Protection Operating handlesNon-metallic Type 1, 3R, 4, 4X, 12
Painted Type 1, 3R, 4, 12Stainless steel Type 4, 4X
2 of #1/0 AWG…250 MCM (2 per lug) 2 of 185 mm2…250 MCM or (1) #4 AWG…500 MCM2 of #1/0 AWG…350 MCM (2 per lug) 2 of 185 mm2…350 MCM or (1) #4 AWG…500 MCM
Recommended Torque
30 A60 A100 A200 A400 A600 A
Conductor into Lug20 lb•in45 lb•in
150 lb•in275 lb•in275 lb•in275 lb•in
Lug to Terminal20 lb•in50 lb•in90 lb•in
175 lb•in175 lb•in275 lb•in
Switches, Mechanisms, and Accessory Kits Zinc-plated steel, RoHS Compliant finish
4 Rockwell Automation Publication 1494-TD001E-EN-P - February 2016
Disconnect Switch and Circuit Breaker Mechanism Specifications
Bulletin 1494H, 1494HL Disconnect Switches
Disconnect Switch Electrical Ratings
Switch Size 30 A 60 A 100 A 200 A
Rated Insulation Voltage (UL) IEC - Ui (600) 660V
RatingsUL/CSA/NEMA
Hp
230V/60 Hz460V/60 Hz575V/60 Hz
102030
205060
4075
100
60125150
250V DC 5 10 20 40
ContinuousCurrent, Ithe
600V AC250V DC 30 60 100 200
Auxiliary Contact Electrical Ratings
Continuous Current 10 A 15 A
Pole Configuration DPDT DPDT
Mechanical
Degree of Protection Operating handles Painted Type 1, 3R, 12
Mechanical Life (Typical) 10 000 operations
Switching Frequency (operations/hr) 300 maximum
Environmental
Ambient TemperatureOperating -35…+40 °C (-31…+104 °F)
Storage -40…+65 °C (-40…+149 °F)
Altitude (per IEC 947-5) 2000 m
Relative Humidity (per IEC 947-3) 90% at 20 °C (68 °F) and 50% at 40 °C (104 °F)
Design Specification/Test Requirements
Dielectric Strength 2200V for 1 minute
Electrical Life 6000 operations at rated current
Short Circuit Withstand Capability
10 000 A: unfused10 000 A: with Class H fuses
200 000 A: with Class J or Class R fuses (30…100 A)100 000 A: with Class J or Class R fuses (200 A)
Construction
Switch Body Material Phenolic
Contact Material Copper, tin-plated
Terminals
30 A60 A100 A200 A
#10 - 32 screw and self-lifting pressure plate1/4 in. - 28 screw-lug, copper
5/16 in. - 24 screw-lug, copper3/8 in. - 24 screw-lug, copper
All wire rated 75 °C (167 °F) or higher must be sized per the local Electric Code for 75 °C (167 °F) wire.
Conductor Size (mm2)
30 A60 A100 A200 A
#14…8 AWG #12…2 AWG
#10…1/0 AWG#2…250 MCM AWG
Recommended Torque30 A60 A100 A200 A
Conductor into Lug36…40 lb•in35…45 lb•in35…50 lb•in
Vertical Center Line of Operation Handle DrillingDoor
Provides forWire Bending
DisconnectingMeans
OperatingHandle
MountingSurface
Disconnect MeansMounting Surface
EnclosureFlange
Trailer Fuse Block
CircuitBreakerAuxiliary
(When Used)
Common IndustrialFlange Cut-Out
J
GMin.
Disconnect Switch
Door Catch
Flange Cut-Out
16 Rockwell Automation Publication 1494-TD001E-EN-P - February 2016
Disconnect Switch and Circuit Breaker Mechanism Specifications
Bulletin 1494G, 1494GX, 1494GY Enclosed Disconnect Safety SwitchesType 3R/4/12 (Enclosure Code “F”) Painted Metal EnclosuresApproximate dimensions are shown in inches. Dimensions are not intended to be used for manufacturing purposes.
Size [A] Fuse Style(1)
(1) A = Non-Fusible, Fusible 250V - Class H/R, Fusible 600V - Class JB = Fusible 600V - Class H/RC = Non-fusibleD = Fusible 250V - Class H/R, Fusible 600V - Class J
Number of Poles
Bulletin Number
Approximate Dimensions in Inches (Millimeters) Approx. Shipping Weight[lb (kg)]
A Height
B Width
CDepth
DMounting
EMounting
FMounting
GHandle Depth
H J
30A 2 or 3 1494G 13-5/16
(338)10-1/2(267)
8-1/4(210)
14-11/16(373)
(2)
(2) These enclosures have one top mounting hole on the center line. All other enclosures have two top mounting holes located as shown.
5-1/4(133)
5-9/16(141)
15-21/32(398)
11/32(9)
2060 (9.07)60
30B
2 or 3 1494G 20(509)
10-1/2(267)
10-3/16(259)
21-7/16(545)
(2) 5-1/4(133)
5-9/16(141)
22-13/32(569)
11/32(9)
3060 (13.6)60
100 A
30C
6 1494G
27-1/2(698)
10-1/2(267)
8-1/4(210)
28-7/8(733)
(2) 5-1/4(133)
5-9/16(141)
29-7/8(759)
13/16(21)
60(27.21)
D
60CD
30A
2 or 3 1494GYB
60AB
30A
2 or 3 1494GX
30(762)
20-1/2(521)
10-3/16(259)
31-3/8(797)
15-1/4(387)
15-1/4(387)
5-9/16(141)
32-3/8(822)
13/16(21)
90(40.82)
B
60AB
100 D 6 1494G
100A
2 or 3 1494GYB
100B 2 or 3
1494G 31-1/2(800)
10-1/2(267)
10-3/32(257)
32-7/8(835)
(2) 5-1/4(133)
5-9/16(141)
33-27/32(860)
11/32(9)
70(31.73)
C 6
200A
2 or 3B
100A
2 or 3 1494GX
50(1270)
22(559)
11-1/2(292)
51-3/8(1305)
15-1/4(387)
15-1/4(387)
5-9/16(141)
52-11/32(1330)
11/32(9)
200(90.7)
B
200C
6 1494GD
200A
2 or 3 1494GYB
400 A2 or 3 1494G 50
(1270)22
(559)11-1/2(292)
51-3/8(1305)
15-1/4(387)
15-1/4(387)
7-5/8(194)
52-11/32(1330)
11/32(9)
200(90.7)600 A
400 B2 or 3 1494G 56
(1422)30-1/2(775)
13-51/64(350)
57-5/8(1464)
20(508)
25-1/4(641)
7-5/8(194)
62-5/8(1590)
1(25.4)
300(136.05)600 B
Rockwell Automation Publication 1494-TD001E-EN-P - February 2016 17
Disconnect Switch and Circuit Breaker Mechanism Specifications
3/4 x 1 x 1-1/4 x 1-1/2(19.1 x 25.4 x 31.8 x 38.1)
100 9/32 (7.1) 1/2 x 3/4 x 1 x 1-1/4(12.7 x 19.1 x 25.4 x 31.8)
3/4 x 1 x 1-1/4 x 1-1/2(19.1 x 25.4 x 31.8 x 38.1)
1 x 1-1/4 x 1-1/2 x 2(25.4 x 31.8 x 38.1 x 50.8)
200 1/2 (12.7) 1 x 1-1/2 x 2 x 2-1/2(25.4 x 38.1 x 50.8 x 63.5)
1 x 1-1/2 x 2 x 2-1/2(25.4 x 38.1 x 50.8 x 63.5) —
B
D
C
A
Figure 5 Figure 7 Figure 8Figure 6
C C C C
A
B
C C C
C B C DA
AC D B
C B CA
AC D B
B B B BA
AB C B
24 Rockwell Automation Publication 1494-TD001E-EN-P - February 2016
Disconnect Switch and Circuit Breaker Mechanism Specifications
Notes:
Rockwell Automation Publication 1494-TD001E-EN-P - February 2016 25
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Publication 1494-TD001E-EN-P - February 2016
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