Page 1
1
Standard Circulating PumpsProduct review
Range: Wilo-TOP-S
>Single-head pumps:
• Single stage wet rotor pump with flanged
connection. Preselectable speed stages for
capacity adjustment.
>Applications:
• Pumps with cast iron body for hot water
heating systems of all kinds, air conditio-
ning, closed cooling circuits, industrial cir-
culation systems.
>Special features/product advantages:
• Pre-selectable speed stages for manual ca-
pacity adjustment
• Automatically vented
• Simple installation
• Quiet, maintenance free
1.5x50
2x35
Wilo-TOP-S1phase - 60Hz
0
10
0 20 40 60 80 100 Q[US gpm]
20
30
40
50
H[f
t]
1.5x60
2x40
2x501.5x40
2x251.5x30
1.25x25
1.5x201.25x35
1.25x15
0
10
0 40 80 120 160 200 Q[US gpm]
20
30
40
60
50
H[f
t] Wilo-TOP-S3phase - 60Hz
2x351.5x20
1.25x35 2x25
1.5x30
2x402x50
3x70
1.5x70
3x25
3x501.5x4
1.5x50
2x60
As at: 10/2010 - Subject to change without prior notice
Page 2
Standard Circulating PumpsProduct review
Function, equipment Wilo-TOP-S
Wilo-TOP-S...
1.25x15 1.25x25 1.25x35 1.5x20 1.5x30 1.5x40 1.5x50 1.5x60 1.5x70
Operating modes
Speed stage switching • • • • • • • • •
Manual functions
Number of speed steps 2 2 2 2 2 2 2 2 2
Signal and display functions
Thermal winding contact (WSK, floating NC contact)
• • • • • • • • •
Reverse rotation indicating lights – – •(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
Equipment/Scope of delivery
Cable connection double-sided possible
• • • • • • • • •
Incl. seals • • • • • • • • •
Incl. Installation and operating instructions
• • • • • • • • •
• = available, – = not available
2Wilo-TOP-S
Page 3
3
Standard Circulating PumpsProduct review
Function, equipment Wilo-TOP-S
Wilo-TOP-S...
2x25 2x35 2x40 2x50 2x60 3x25 3x50 3x70
Operating modes
Speed stage switching • • • • • • • •
Manual functions
Number of speed steps 2 2 2 2 2 2 2 2
Signal and display functions
Thermal winding contact (WSK, floating NC contact)
• • • • • • • •
Power ON and reverse rotation lights •(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
•(only with 3~ pumps)
Equipment
Two pre-selectable speeds for capacity adjustment
• • • • • • • •
Cataphoretic coated pump housing • • • • • • • •
Thermal overload motor protection • • • • • • • •
Cable feed both sides to facilitate installa-tion
• • • • • • • •
Scope of delivery
Pump • • • • • • • •
Flange gaskets • • • • • – – –
Installation and operating instructions • • • • • • • •
• = available, – = not available
As at: 10/2010 - Subject to change without prior notice
Page 4
Standard Circulating PumpsProduct review
Technical data Wilo-TOP-S
Wilo-TOP-S...
1.25x15 1.25x25 1.25x35 1.5x20 1.5x30 1.5x40 1.5x50 1.5x60 1.5x70
Approved fluids (other fluids on request)
Heating water • • • • • • • • •
Water/glycol mixtures(max. 1:1; mixtures with more than 20 % glycol require reassessment of the hydrau-lic criteria)
• • • • • • • • •
Domestic hot water – – – – – – – – –
Performance
Max. delivery head [ft] 1~ 18.4 27.2 32.6 20.5 27.6 34.5 41.9 57.6 –
3~ – – 34.3 20.2 29.0 40.7 52.0 – 70.1
Max. delivery head [m] 1~ 5.6 8.3 9.9 6.2 8.4 10.5 12.8 17.6 –
3~ – – 10.5 6.1 8.8 12.4 15.8 – 21.4
Max. volume rate of flow [USGPM] 1~ 27 35 48 70 87 97 88 103.6 –
3~ – – 50 70 90 100 100 – 110
Max. volume rate of flow [m3/h] 1~ 6.1 7.9 10.9 15.9 19.7 22.0 20.0 23.5 –
3~ – – 11.4 15.9 20.4 22.7 22.7 – 25.0
Acceptable field of application
Temperature range for application in heating and cooling installations(closed circulating systems)
14 °F (-10 °C)up to
248 °F (+120 °C)
Temperature range for open circulating systems
– – – – – – – – –
Temperature range in domestic hot water systems
– – – – – – – – –
Ambient temperature range 32 °F (0 °C)up to
104 °F (+40 °C)
Max. working pressure pmax 145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
Pipe connections
Nominal connection diameter – DS [in] 1.25 1.25 1.25 1.5 1.5 1.5 1.5 1.5 1.5
Non ANSI flange (oval, rotated 90°) • • • – – – – – –
Non ANSI flange (oval) – – – • • • • • •
Non ANSI flange (round) – – – – – – – – –
ANSI flange – – – – – – – – –
• = available, – = not available
4Wilo-TOP-S
Page 5
5
Standard Circulating PumpsProduct review
Technical data Wilo-TOP-S
Electrical connections
Power supply 1~ [V] 115 115 115 115 115 115 115 – –
230 230 230 230 230 230 230 230 –
Power supply 3~ [V] – – 208-230 208-230 208-230 208-230 208-230 – 208-230
– – – – 460 460 460 – 460
– – – – 575 575 575 – 575
Frequency [Hz] 60 60 60 60 60 60 60 60 60
Motor/Electronics
Degree of protection Enclosure 2
Protection class H H H H H H H H H
Materials
Pump housing Cataphoretic coated cast iron (EN-GJL-250)
Impeller Engineered composite (PP - 50% GF)
Shaft Stainless steel (X46 Cr13)
Bearing Metal impregnated carbon
Minimal static inlet pressure at pump suction port [psi] to avoid cavitation at fluid temperatures
140 °F (60 °C) 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8
194 °F (90 °C) 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3
248 °F (120 °C) 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9
Wilo-TOP-S...
1.25x15 1.25x25 1.25x35 1.5x20 1.5x30 1.5x40 1.5x50 1.5x60 1.5x70
• = available, – = not available
As at: 10/2010 - Subject to change without prior notice
Page 6
Standard Circulating PumpsProduct review
Technical data Wilo-TOP-S
Wilo-TOP-S...
2x25 2x35 2x40 2x50 2x60 3x25 3x50 3x70
Approved fluids (other fluids on request)
Heating water • • • • • • • •
Water/glycol mixtures(max. 1:1; mixtures with more than 20 % glycol require reassessment of the hydrau-lic criteria)
• • • • • • • •
Domestic hot water – – – – – – – –
Performance
Max. delivery head [ft] 1~ 23.3 28.0 35.5 37.4 – – – –
3~ 24.5 31.6 40.7 43.2 56.4 24.7 53.5 70.9
Max. delivery head [m] 1~ 7.1 8.5 10.8 11.4 – – – –
3~ 7.5 9.6 12.4 13.2 17.2 7.5 16.3 21.6
Max. volume rate of flow [USGPM] 1~ 118.0 125.0 106.8 123.3 – – – –
3~ 115.0 135.0 130.0 160.0 180.0 240.0 250.0 290.0
Max. volume rate of flow [m3/h] 1~ 26.8 28.4 24.3 28.0 – – – –
3~ 26.1 30.7 29.5 36.3 40.9 54.5 56.8 65.9
Acceptable field of application
Temperature range for application in heating and cooling installations(closed circulating systems)
14 °F (-10 °C)up to
248 °F (+120 °C)
Temperature range for open circulating systems
– – – – – – – –
Temperature range in domestic hot water systems
– – – – – – – –
Ambient temperature range 32 °F (0 °C)up to
104 °F (+40 °C)
Max. working pressure pmax 145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
145 psi(10 bar)
Pipe connections
Nominal connection diameter – DS [in] 2 2 2 2 2 3 3 3
Non ANSI flange (oval, rotated 90°) – – – – – – – –
Non ANSI flange (oval) – – – – – – – –
Non ANSI flange (round) • • • • • – – –
ANSI flange – – – – – • • •
• = available, – = not available
6Wilo-TOP-S
Page 7
7
Standard Circulating PumpsProduct review
Technical data Wilo-TOP-S
Electrical connections
Power supply 1~ [V] 115 115 115 – – – – –
230 230 230 230 – – – –
Power supply 3~ [V] 208-230 208-230 208-230 208-230 208-230 208-230 208-230 208-230
460 460 460 460 460 460 460 460
575 575 575 575 575 575 575 575
Frequency [Hz] 60 60 60 60 60 60 60 60
Motor/Electronics
Degree of protection Enclosure 2
Protection class H H H H H H H H
Materials
Pump housing Cataphoretic coated cast iron (EN-GJL-250)
Impeller Plastics (PP - 50% GF)
Shaft Stainless steel (X46 Cr13)
Bearing Metal impregnated carbon
Minimal static inlet pressure at pump suction port [psi] to avoid cavitation at fluid temperatures
140 °F (60 °C) 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3
194 °F (90 °C) 15.4 15.4 15.4 15.4 15.4 15.4 15.4 15.4
248 °F (120 °C) 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9
Wilo-TOP-S...
2x25 2x35 2x40 2x50 2x60 3x25 3x50 3x70
• = available, – = not available
As at: 10/2010 - Subject to change without prior notice
Page 8
Standard Circulating PumpsWilo-TOP-S
Pump curves
Note: The solid line of the following hydraulic curves indicates the
permitted range of performance.
Wilo-TOP-S 1.25x15
1~ (single phase motor)
Wilo-TOP-S 1.25x25
1~ (single phase motor)
0
2
4
6
8
10
12
14
16
18
20
0
1
2
3
4
5
6
0 5 10 15 20 25
0 5 10 15 20 25
0 1 2 3 4 5
0 1 2 3 4 5
6
6
0.10 0.12 0.14 0.16 0.18 0.20 0.22
80
100
120
140
160
H [f
t]
H [m
]
Wilo-TOP-S 1.25x151 ~ , 60 Hz
P 1 [h
p]
min. max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0
1
2
3
4
5
6
7
8
9
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
8
8
0 5 10 15 20 25 30
0 5 10 15 20 25 30 0.12
0.16
0.20
0.24
0.28
0.32
100 120 140 160 180 200 220
H [f
t]
H [m
]
Wilo-TOP-S 1.25x251 ~ , 60 Hz
P 1 [h
p]
min. max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
8Wilo-TOP-S
Page 9
9
Standard Circulating Pumps
Pump curves
Wilo-TOP-S
Wilo-TOP-S 1.25x35
1~ (single phase motor)
Wilo-TOP-S 1.25x35
3~ (three phase motor)
Wilo-TOP-S 1.5x20
1~ (single phase motor)
Wilo-TOP-S 1.5x20
3~ (three phase motor)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
0
1
2
3
4
5
6
7
8
9
10
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
10
10
0 5 10 15 20 25 30 35 40
0 5 10 15 20 25 30 35 400.160.200.240.280.320.360.400.44
120
160
200
240
280
320
H [f
t]
H [m
]
Wilo-TOP-S 1.25x351 ~ , 60 Hz
P 1 [h
p]
min.max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
0
2
4
6
8
1
3
5
7
9
10
11
0 5 10 15 20 25 30 35 40 45
0 5 10 15 20 25 30 35 40 450.1
0.2
0.3
0.4
0.5
100
200
300
0 1 2 3 4 5 6 7 8 9 10
0 1 2 3 4 5 6 7 8 9 10
11
11
H [f
t]
H [m
]
Wilo-TOP-S 1.25x353 ~ , 60 Hz
P 1 [h
p]
min.max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
min.
max.
0 2 4 6 8 10 12 14
0 2 4 6 8 10 12 14
16
16
0 10 20 30 40 50 60
0 10 20 30 40 50 60
0
2
4
6
8
10
12
14
16
18
20
22
0
1
2
3
4
5
6
0.25
0.30
0.40
0.35
0.45
200
240
280
320
H [f
t]
H [m
]
Wilo-TOP-S 1.5x201 ~ , 60 Hz
P 1 [h
p] min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
100
200
300
0
2
4
6
8
10
12
14
16
18
20
22
0
1
2
3
4
5
6
0 2 4 6 8 10 12 14
0 2 4 6 8 10 12 14
0 5 10 15 20 25 30 35 40 45 50 55 60
0 5 10 15 20 25 30 35 40 45 50 55 600.1
0.2
0.3
0.4
0.5
H [f
t]
H [m
]
Wilo-TOP-S 1.5x203 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
As at: 10/2010 - Subject to change without prior notice
Page 10
Standard Circulating PumpsWilo-TOP-S
Pump curves
Wilo-TOP-S 1.5x30
1~ (single phase motor)
Wilo-TOP-S 1.5x30
3~ (three phase motor)
Wilo-TOP-S 1.5x40
1~ (single phase motor)
Wilo-TOP-S 1.5x40
3~ (three phase motor)
0 2 4 6 8 10 12 14 16
0 2 4 6 8 10 12 14 16
18
18
0 10 20 30 40 50 60 70
0 10 20 30 40 50 60 70
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0
1
2
3
4
5
6
7
8
9
300
400
500
600
700
0.4
0.6
0.8
0.5
0.7
0.9 1.0
H [f
t]
H [m
]
Wilo-TOP-S 1.5x301 ~ , 60 Hz
P 1 [h
p]
min. max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
32
30
0
1
2
3
4
5
6
7
8
9
0 10 20 30 40 50 60 70 80
0 10 20 30 40 50 60 70 80
0 2 4 6 8 10 12 14 16 18
0 2 4 6 8 10 12 14 16 18
20
20
0.30.40.50.60.7
0.90.8
300
400
500
600
H [f
t]
H [m
]
Wilo-TOP-S 1.5x303 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0 2 4 6 8 10 12 14 16 18
0 2 4 6 8 10 12 14 16 18
20
20
0
5
10
15
20
25
30
35
40
0
1
2
3
4
5
6
7
8
9
10
11
12
0 10 20 30 40 50 60 70 80
0 10 20 30 40 50 60 70 800.4
0.6
0.8
1.0
1.2
300400500600700800
H [f
t]
H [m
]
Wilo-TOP-S 1.5x401 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
10
20
30
40
5
15
25
35
45
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0 2 4 6 8 10 12 14 16 18 20
0 2 4 6 8 10 12 14 16 18 20
22
22
0 10 20 30 40 50 60 70 80 90
0 10 20 30 40 50 60 70 80 900.40.50.60.70.80.91.01.11.2
300400500600700800
H [f
t]
H [m
]
Wilo-TOP-S 1.5x403 ~ , 60 Hz
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
P 1 [h
p]
min.
max.
min.
max.
10Wilo-TOP-S
Page 11
11
Standard Circulating Pumps
Pump curves
Wilo-TOP-S
Wilo-TOP-S 1.5x50
1~ (single phase motor)
Wilo-TOP-S 1.5x50
3~ (three phase motor)
Wilo-TOP-S 1.5x60
1~ (single phase motor)
Wilo-TOP-S 1.5x70
3~ (three phase motor)
0
10
20
30
5
15
25
40
45
50
35
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0 2 4 6 8 10 12 14 16
0 2 4 6 8 10 12 14 16
18
18
0 10 20 30 40 50 60 70
0 10 20 30 40 50 60 70
0.6
0.4
0.8
1.0
1.2
400 300
500 600 700 800
H [f
t]
H [m
]
Wilo-TOP-S 1.5x501 ~ , 60 Hz
P 1 [h
p]
min. max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
10
20
30
40
5
15
25
35
60
55
50
45
0
2
4
6
8
10
12
14
16
170 2 4 6 8 10 12 14 16 18 20
0 2 4 6 8 10 12 14 16 18 20
22
22
0 10 20 30 40 50 60 70 80 90
0 10 20 30 40 50 60 70 80 900.40.60.8
1.21.41.6
1.0
400
600
800
1000
1200
H [f
t]
H [m
]
Wilo-TOP-S 1.5x503 ~ , 60 Hz
P 1 [h
p]
min.max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0.80.6
1.01.21.41.61.8
600
800
1000
1200
0
10
20
30
40
50
60
5
15
25
35
45
55
0
2
4
6
8
10
12
14
16
18
0 10 20 30 40 50 60 70 80 90
0 2 4 6 8 10 12 14 16 18 20
0 10 20 30 40 50 60 70 80 90
0 2 4 6 8 10 12 14 16 18 20
22
22
H [f
t]
H [m
]
Wilo-TOP-S 1.5x601 ~ , 60 Hz
P 1 [h
p]
min.max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
10
20
30
40
50
60
70
80
0
2
4
6
8
10
12
14
16
18
20
22
240 2 4 6 8 10 12 14 16 18 20 22
0 2 4 6 8 10 12 14 16 18 20 22
24
24
0 10 20 30 40 50 60 70 80 90
0 10 20 30 40 50 60 70 80 90
100
1000.60.81.01.21.41.6
2.22.01.8
6008001000120014001600
H [f
t]
H [m
]
Wilo-TOP-S 1.5x703 ~ , 60 Hz
P 1 [h
p]
min.max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
As at: 10/2010 - Subject to change without prior notice
Page 12
Standard Circulating PumpsWilo-TOP-S
Pump curves
Wilo-TOP-S 2x25
1~ (single phase motor)
Wilo-TOP-S 2x25
3~ (three phase motor)
Wilo-TOP-S 2x35
1~ (single phase motor)
Wilo-TOP-S 2x35
3~ (three phase motor)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
0
1
2
3
4
5
6
7
0 2 4 6 8 10 12 14 16 18 20 22
0 2 4 6 8 10 12 14 16 18 20 22
24
24
0 10 20 30 40 50 60 70 80 90
0 10 20 30 40 50 60 70 80 90
100
100 0.52 0.56 0.60 0.64 0.68 0.72 0.76 0.80 0.84
400 440 480 520 560 600
H [f
t]
H [m
]
Wilo-TOP-S 2x251 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
0
1
2
3
4
5
6
7
0 2 4 6 8 10 12 14 16 18 20 22
0 2 4 6 8 10 12 14 16 18 20 22
24
24
0 10 20 30 40 50 60 70 80 90
0 10 20 30 40 50 60 70 80 90
100
100 0.4
0.6
0.9
0.8
0.5
0.7
400
600
300
500
H [f
t]
H [m
]
Wilo-TOP-S 2x253 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0.50.60.70.80.91.01.1
400
500
600
700
800
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0
1
2
3
4
5
6
7
8
9
0 10 20 30 40 50 60 70 80 90 100
0 10 20 30 40 50 60 70 80 90 100
0 5 10 15 20 25
0 5 10 15 20 25
H [f
t]
H [m
]
Wilo-TOP-S 2x351 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
34
32
0
1
2
3
4
5
6
7
8
9
10
0 2 4 6 8 10 12 14 16 18 20 22 24 26
0 2 4 6 8 10 12 14 16 18 20 22 24 26
28
28
0 10 20 30 40 50 60 70 80 90 100 110
0 10 20 30 40 50 60 70 80 90 100 1100.40.50.60.70.80.91.01.11.2
300400500600700800
H [f
t]
H [m
]
Wilo-TOP-S 2x353 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
12Wilo-TOP-S
Page 13
13
Standard Circulating Pumps
Pump curves
Wilo-TOP-S
Wilo-TOP-S 2x40
1~ (single phase motor)
Wilo-TOP-S 2x40
3~ (three phase motor)
Wilo-TOP-S 2x50
1~ (single phase motor)
Wilo-TOP-S 2x50
3~ (three phase motor)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
0
2
4
6
8
10
11
1
3
5
7
9
0 5 10 15 20
0 5 10 15 20
0 10 20 30 40 50 60 70 80 90
0 10 20 30 40 50 60 70 80 900.60.70.80.9
1.11.2
1.0
500
600
700
800
H [f
t]
H [m
]
Wilo-TOP-S 2x401 ~ , 60 Hz
P 1 [h
p]
min.max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
10
20
30
40
45
5
15
25
35
0 2 4 6 8 10 12 14 16 18 20 22 24 26
0 2 4 6 8 10 12 14 16 18 20 22 24 26
28
28
0 10 20 30 40 50 60 70 80 90 100 110
0 10 20 30 40 50 60 70 80 90 100 1100.4
0.6
0.8
1.0
1.2
1.4
400
600
800
1000
0
2
4
6
8
10
12
13
1
3
5
7
9
11
H [f
t]
H [m
]
Wilo-TOP-S 2x403 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0 5 10 15 20 25
0 5 10 15 20 25
0
5
10
15
20
25
30
35
40
0
2
4
6
8
10
12
1
3
5
7
9
11
0 10 20 30 40 50 60 70 80 90 100
0 10 20 30 40 50 60 70 80 90 1001.11.21.31.41.51.6
1.81.7
900
1000
1100
1200
1300
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
H [f
t]
H [m
]
Wilo-TOP-S 2x501 ~ , 60 Hz
P 1 [h
p]
P 1 [W
]
min.
max.
min.
max.
0
10
20
30
40
45
5
15
25
35
0
2
4
6
8
10
12
13
1
3
5
7
9
11
0 5 10 15 20 25 30 35
0 5 10 15 20 25 30 35
0 20 40 60 80 100 120 140
0 20 40 60 80 100 120 1401.01.21.41.61.8
2.22.0
800
1000
1200
1400
1600
H [f
t]
H [m
]
Wilo-TOP-S 2x503 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
As at: 10/2010 - Subject to change without prior notice
Page 14
Standard Circulating PumpsWilo-TOP-S
Pump curves
Wilo-TOP-S 2x60
3~ (three phase motor)
Wilo-TOP-S 3x25
3~ (three phase motor)
Wilo-TOP-S 3x50
3~ (three phase motor)
Wilo-TOP-S 3x70
3~ (three phase motor)
0
10
20
30
40
50
60
5
15
25
35
45
55
0
2
4
6
8
10
12
14
16
18
0 5 10 15 20 25 30 35
0 5 10 15 20 25 30 35
40
40
0 25 50 75 100 125 150
0 25 50 75 100 125 1501.2
1.6
2.0
2.8
2.4
100012001400160018002000
H [f
t]
Wilo-TOP-S 2x603 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0
1
2
3
4
5
6
7
8
0 10 20 30 40
0 10 20 30 40
50
50
0 25 50 75 100 125 150 175 200
0 25 50 75 100 125 150 175 200 0.8
1.0
1.2
1.4
1.6
600
800
1000
H [f
t]
H [m
]
Wilo-TOP-S 3x253 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
10
20
30
40
50
60
5
15
25
35
45
55
0
2
4
6
8
10
12
14
16
18
0 10 20 30 40 50
0 10 20 30 40 50
0 25 50 75 100 125 150 175 200 225
0 25 50 75 100 125 150 175 200 2251.61.82.02.22.42.62.8
3.23.0
120014001600180020002200
H [f
t]
H [m
]
Wilo-TOP-S 3x503 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
0
4
8
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
72
0
2
4
6
8
10
12
14
16
18
20
0 10 20 30 40 50
0 10 20 30 40 50
60
60
0 25 50 75 100 125 150 175 200 225
0 25 50 75 100 125 150 175 200 225
250
2502.2
2.6
3.0
3.4
3.8
4.2
1800200022002400260028003000
H [f
t]
H [m
]
Wilo-TOP-S 3x703 ~ , 60 Hz
P 1 [h
p]
min.
max.
min.
max.
[US gpm]
[m³/h]
Q
[US gpm]
[m³/h]
P 1 [W
]
14Wilo-TOP-S
Page 15
15
Standard Circulating Pumps
Wiring diagrams
Wilo-TOP-S
Wiring diagramm A - single phase motor2-pole, 1~115/230 V, 60 Hz
Wiring diagramm B - three phase motor2-pole, 3~208-230/460/575 V, 60 Hz
Note: The pump must be connected to the electrical supply via
an external contactor to provide thermal overload protection.
Note: The pump must be connected to the electrical supply via
an external contactor to provide thermal overload protection.
L
S1
P1 P2 N L
S2
K
K
~
K
N
1
S1
L1L2L3
S2
K
KK
~3
P1 P2 L1 L2 L3
As at: 10/2010 - Subject to change without prior notice
Page 16
Standard Circulating PumpsWilo-TOP-S
Motor data
Motor Data – single phase motor
Wilo-TOP-S... Rated Power Speed Power consumption
Current Capacitor Screwedcable gland
Wiringdiagramm
P2 (at high speed) n P1 1~115 V 1~230 V 1~115 V 1~230 V – –
I –
[hp] [W] [rpm] [W] [A] [μF/VDB] [in] –
1.25x15 1/8 803200 145 1.4 0.7
16/250 4/4502 x ½"2 x ¼"
A2950 140 1.3 0.6
1.25x25 1/8 903100 215 2.0 1.0
20/250 5/4502 x ½"2 x ¼"
A2750 195 1.9 0.9
1.25x35 1/4 1803250 315 3.1 1.6
24/250 6/4502 x ½"2 x ¼"
A3050 305 2.9 1.5
1.5x20 1/4 1803250 305 3.1 1.6
24/250 6/4502 x ½"2 x ¼"
A3000 300 2.9 1.5
1.5x30 1/2 3503400 610 5.9 3.0
56/250 14/4502 x ½"2 x ¼"
A3300 570 5.7 2.9
1.5x40 5/8 4503350 755 7.5 3.8
56/250 14/4502 x ½"2 x ¼"
A3200 745 7.2 3.6
1.5x50 3/4 5703150 820 7.8 3.9
80/250 20/4502 x ½"2 x ¼"
A2800 700 7.4 3.7
1.5x60 11/2 11003300 1255 – 6.0
– 30/4502 x ½"2 x ¼"
A2950 1110 – 5.7
2x25 1/2 3503450 610 5.9 3.0
56/250 14/4502 x ½"2 x ¼"
A3300 570 5.7 2.9
2x35 5/8 4503350 755 7.5 3.8
56/250 14/4502 x ½"2 x ¼"
A3150 740 7.2 3.6
2x40 3/4 5703200 860 8.0 4.0
80/250 20/4502 x ½"2 x ¼"
A2800 750 7.6 3.8
2x50 11/2 11003300 1265 – 6.0
– 30/4502 x ½"2 x ¼"
A2950 1110 – 5.7
16Wilo-TOP-S
Page 17
17
Standard Circulating Pumps
Motor data
Wilo-TOP-S
Motor Data – three phase motor
Wilo-TOP-S... Rated Power Speed Power consumption
Current Screwedcable gland
Wiringdiagramm
P2 (at high speed) n P1 3~208-230 V 3~460 V 3~575 V – –
I
[hp] [W] [rpm] [W] [A] [in] –
TOP-S 1.25x35 1/4 1803310 355 1.3 – – 2 x ½"
2 x ¼"B
2840 245 0.8 – –
TOP-S 1.5x20 1/4 1803340 325 1.3 – – 2 x ½"
2 x ¼"B
2840 225 0.7 – –
TOP-S 1.5x30 1/2 3503390 595 2.1 1.0 0.8 2 x ½"
2 x ¼"B
2990 445 1.4 0.7 0.5
TOP-S 1.5x40 5/8 4503330 870 3.0 1.5 1.2 2 x ½"
2 x ¼"B
2890 615 1.9 0.9 0.7
TOP-S 1.5x50 3/4 5703380 1040 3.6 1.8 1.4 2 x ½"
2 x ¼"B
2970 775 2.4 1.2 0.9
TOP-S 1.5x70 11/2 11003410 1505 5.3 2.6 2.1 2 x ½"
2 x ¼"B
3050 1125 3.5 1.7 1.4
TOP-S 2x25 1/2 3503380 610 2.1 1.1 0.8 2 x ½"
2 x ¼"B
2950 455 1.4 0.7 0.6
TOP-S 2x35 5/8 4503330 870 3.0 1.5 1.2 2 x ½"
2 x ¼"B
2870 615 1.9 0.9 0.8
TOP-S 2x40 3/4 5703380 995 3.5 1.7 1.4 2 x ½"
2 x ¼"B
2940 740 2.3 1.1 0.9
TOP-S 2x50 11/2 11003420 1480 5.2 2.6 2.1 2 x ½"
2 x ¼"B
3080 1105 3.4 1.7 1.4
TOP-S 2x60 13/4 13003460 2035 6.8 3.4 2.7 2 x ½"
2 x ¼"B
3180 1630 4.9 2.4 2.0
TOP-S 3x25 3/4 5703340 1125 3.8 1.9 1.5 2 x ½"
2 x ¼"B
2910 820 2.5 1.3 1.0
TOP-S 3x50 21/8 16003510 2360 8.7 4.3 3.5 2 x ½"
2 x ¼"B
3340 1835 5.7 2.9 2.3
TOP-S 3x70 21/8 16003470 3080 10.3 5.1 4.1 2 x ½"
2 x ¼"B
3210 2450 7.7 3.9 3.1
As at: 10/2010 - Subject to change without prior notice
Page 18
Standard Circulating PumpsWilo-TOP-S
Dimensions, weights
Drawing no.: 1 Drawing no.: 2
Drawing no.: 3 Drawing no.: 4
Drawing no.: 5 Drawing no.: 6
a2 b1 b2
l2
a1
l 0
l 1
b 4
b 6
a2 b1 b2 a1
l 0
l 1
b 4
b 5
l2
a2 b1 b2
l2
a1
l 0
l 1
b 4
b 6
1/4”
1/4”
a2b1 b2 a1
l 0
l 1
b 4b 5
1/4”
1/4”
l2
a2b1 b2
l2
a1
l 0
l 1
b 4b 6
1/4”
1/4”
a2b1 b2
l2
a1
l 0
l 1
b 4b 5
1/4”
1/4”
18Wilo-TOP-S
Page 19
19
Standard Circulating Pumps
Dimensions, weights
Wilo-TOP-S
Drawing no.: 7 Drawing no.: 8
Ø
Ø
Ø D
d 2
Ø d
1 k n x d L
n x d L
Ø
Ø
Ø
D
d2
Ø d1
k
As at: 10/2010 - Subject to change without prior notice
Page 20
Standard Circulating PumpsWilo-TOP-S
Dimensions, weights
Dimensions, weights - single phase motor
Wilo-TOP-S... Flangediameter
Pump dimensions
DN l0 l1 l2 a1 a2
[in] [mm] [in] [mm] [in] [mm] [in] [mm] [in] [mm] [in] [mm]
1.25x15 1.25 32 61/2 165 31/4 82.5 43/16 106 711/16 195 11/4 32.0
1.25x25 1.25 32 61/2 165 31/4 82.5 43/16 106 711/16 195 11/4 32.0
1.25x35 1.25 32 81/2 216 41/4 108.0 47/16 113 710/16 193 111/16 42.5
1.5x20 1.50 40 10 254 5 127.0 47/16 113 711/16 195 23/8 61.0
1.5x30 1.50 40 10 254 5 127.0 43/4 120 91/4 235 25/16 58.0
1.5x40 1.50 40 10 254 5 127.0 43/4 120 91/4 235 25/16 58.0
1.5x50 1.50 40 10 254 5 127.0 51/8 130 107/8 277 21/8 54.0
1.5x60 1.50 40 10 254 5 127.0 51/8 130 107/8 277 21/8 54.0
2x 25 2.00 50 11 279 51/2 139.5 43/4 120 99/16 243 21/2 64.0
2x35 2.00 50 11 279 51/2 139.5 43/4 120 99/16 243 21/2 64.0
2x40 2.00 50 11 279 51/2 139.5 51/8 130 103/8 263 21/2 70.0
2x50 2.00 50 131/2 343 63/4 171.5 51/8 130 117/16 290 37/16 88.0
Dimensions, weights - single phase motor (continuation)
Wilo-TOP-S... Pump dimensions Weight approx.net
Drawing No.
b1 b2 b4 b5 - -
[in] [mm] [in] [mm] [in] [mm] [in] [mm] [lbs] [kg] -
1.25x15 29/16 65.5 23/16 56 23/4 70 35/16 83.5 13.7 6.2 1
1.25x25 29/16 65.5 23/16 56 23/4 70 35/16 83.5 14.1 6.4 1
1.25x35 211/16 69.0 23/8 60 23/4 70 35/16 83.5 18.5 8.4 1
1.5x20 31/16 78.0 211/16 68 23/4 70 35/16 83.5 20.5 9.3 3
1.5x30 39/16 90.0 31/8 79 23/4 70 35/16 83.5 29.3 13.3 3
1.5x40 39/16 90.0 31/8 79 23/4 70 35/16 83.5 29.3 13.3 3
1.5x50 37/8 99.0 33/8 86 23/4 70 35/16 83.5 40.8 18.5 3
1.5x60 37/8 99.0 33/8 86 23/4 70 35/16 83.5 45.6 20.7 3
2x 25 39/16 91.0 3 76 23/4 70 35/16 83.5 34.0 15.4 5
2x35 39/16 91.0 3 76 23/4 70 35/16 83.5 33.3 15.1 5
2x40 4 101.0 33/8 86 23/4 70 35/16 83.5 43.0 19.5 5
2x50 41/8 105.0 39/16 90 23/4 70 35/16 83.5 50.9 23.1 5
20Wilo-TOP-S
Page 21
21
Standard Circulating Pumps
Dimensions, weights
Wilo-TOP-S
Dimensions, weights - three phase motor
Wilo-TOP-S... Flangediameter
Pump dimensions
DN l0 l1 l2 a1 a2
[in] [mm] [in] [mm] [in] [mm] [in] [mm] [in] [mm] [in] [mm]
1.25x35 1.25 32 81/2 216 41/4 108.0 47/16 113 75/8 193 111/16 42.5
1.5x20 1.5 32 10 254 5 127.0 47/16 113 711/16 195 23/8 61
1.5x30 1.5 32 10 254 5 127.0 43/4 120 91/4 235 25/16 58
1.5x40 1.5 40 10 254 5 127.0 43/4 120 91/4 235 25/16 58
1.5x50 1.5 40 10 254 5 127.0 51/8 130 107/8 277 21/8 54
1.5x70 1.5 40 10 254 5 127.0 51/8 130 107/8 277 21/8 54
2x25 2 50 11 279 51/2 139.5 43/4 120 99/16 243 21/2 64
2x35 2 50 11 279 51/2 139.5 43/4 120 99/16 243 21/2 64
2x40 2 50 11 279 51/2 139.5 51/8 130 103/8 263 23/4 70
2x50 2 50 131/2 343 63/4 171.5 51/8 130 117/16 290 37/16 88
2x60 2 50 131/2 343 63/4 171.5 51/8 130 117/16 290 37/16 88
3x25 3 80 14 356 7 178.0 51/8 130 1011/16 271 311/16 94
3x50 3 80 14 356 7 178.0 61/16 154 131/16 332 61/4 159
3x70 3 80 14 356 7 178.0 61/16 154 131/16 332 61/4 159
Dimensions, weights - three phase motor (continuation)
Wilo-TOP-S... Pump dimensions Weight approx.net
Drawing No.
b1 b2 b4 b5 - -
[in] [mm] [in] [mm] [in] [mm] [in] [mm] [lbs] [kg] -
1.25x35 211/16 69 23/8 60 23/4 70 23/4 70 18.3 8.3 2
1.5x20 31/16 78 211/16 68 23/4 70 23/4 70 20.3 9.2 4
1.5x30 39/16 90 31/8 79 23/4 70 23/4 70 27.3 12.4 4
1.5x40 39/16 90 31/8 79 23/4 70 23/4 70 28.7 13.0 4
1.5x50 37/8 99 33/8 86 23/4 70 23/4 70 40.1 18.2 4
1.5x70 37/8 99 33/8 86 23/4 70 23/4 70 45.0 20.4 4
2x25 39/16 91 3 76 23/4 70 23/4 70 32.0 14.5 6
2x35 39/16 91 3 76 23/4 70 23/4 70 34.0 15.4 6
2x40 4 101 33/8 86 23/4 70 23/4 70 42.3 19.2 6
2x50 41/8 105 39/16 90 23/4 70 23/4 70 50.3 22.8 6
2x60 41/8 105 39/16 90 23/4 70 23/4 70 56.2 25.5 6
3x25 47/16 112 37/16 87 23/4 70 23/4 70 60.0 27.2 6
3x50 411/16 119 41/4 108 23/4 70 23/4 70 97.4 44.2 6
3x70 411/16 119 41/4 108 23/4 70 23/4 70 97.4 44.2 6
As at: 10/2010 - Subject to change without prior notice
Page 22
Standard Circulating PumpsWilo-TOP-S
Dimensions, weights
Flange dimensions
Wilo-TOP-S... Flange Nominaldiameter
Flange dimension pump Drawing No.
DN Ø D Ø d1 Ø d2 Ø k n x dL -
[in] [mm] in [mm] [in] [mm] [in] [mm] [in] [mm] [units x in] [units x mm] -
1.25x151.25x251.25x35
Non ANSI (oval
90° rotated)1.25 32 43/4 121 13/8 35 27/8 73 31/2 89 2 x ø 1/2 2 x ø 14 7
1.5x201.5x301.5x401.5x501.5x601.5x70
Non ANSI (oval)
1.5 40 43/4 121 15/8 41 27/8 73 31/2 89 2 x ø 1/2 2 x ø 14 7
2x252x352x402x502x60
Non ANSI (round)
2.0 50 51/4 133 21/16 53 37/16 87 4 102 4 x ø 1/2 4 x ø 14 8
3x253x503x70
ANSI R.F.Class 125
ASTMA 1263.0 80 79/16 192 31/4 82 51/16 128 6 152 4 x ø 3/4 4 x ø 19 8
22Wilo-TOP-S