Providing Solutions in centrifugal
Speed Switching for Over 65 years
MADE IN THE U.S.A.
Motor Switch Selector

Motor Switch Selector Form

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Motor Speed (Poles):  
OR Two-Speed Motor:  
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Centrifugal Switch Diagram

Centrifugal Switch Application Chart

Torq Series Number
C100
C150
C170
C200
C250
C300
Mechanism Outer Diameter (A)
2.00in.
(50.80mm)
2.25in.
(57.15mm)
2.42in.
(61.47mm)
2.61in.
(66.29mm)
2.78in.
(70.61mm)
3.56in.
(90.42mm)
Mechanism Height (G)
0.51-0.60in.
(12.95-15.24mm)
0.65-0.75in.
(16.51-19.05mm)
0.64-0.74in.
(16.26-18.80mm)
0.63-0.76in.
(16.00-19.30mm)
0.66- 0.72in.
(16.76mm)
0.77-0.96in.
(19.56-24.38mm)
Frame (NEMA)
38-42
42-48
48-56
48-145
145-180
180-215
Shaft Diameter (B)
0.25-0.60in
(6.35-15.24mm)
0.30-0.80in.
(7.62-20.32mm)
0.35-0.80in.
(8.89-20.32mm)
0.40-1.00in.
(10.16-25.4mm)
0.60-1.40in.
(15.24-35.56mm)
0.80-1.70in.
(20.32-43.18mm)
Speed in Poles/Hertz
2P50; 2P60
4P50; 4P60
 
 
2P50; 2P60
4P50; 4P60
6P50;6P60
8P50; 8P60
 
 
Motor Bearing
6202
6202
6202-6203
6202-6204
6204-6205
6205-6208

Stationary Switch Application Chart

 
Dual Arm
 
 
 
 
Single Arm
Torq Series Number
S100
S200
S250
S300
S350
Single Arm
Motor Bearing
6202
6203
6204
6205
6206
VARIOUS
Frame (NEMA)
38-42
42-56
56-146
180-215
180-215
VARIOUS
Inner Diameter
1.410in.
(35.81mm) 
1.687in.
(42.85mm)
1.937in.
(49.20mm)
2.250in.
(57.15mm) 
2.906in.
(73.81mm)
N/A
Mounting Center
2.125in.
(53.97mm)
2.562-2.75in.
(65.07-69.85mm)
2.562-2.75in.
(65.07-69.85mm)
2.75 or 3.375in.
(69.85 or 85.72mm)
3.375in.
(85.72mm)
VARIOUS
Length & Width
2.62 x 2.23in.
(65.55 x 56.64mm)
3.438 x 2.50in.
(87.33 x 63.50mm)
3.438 x 3.063in.
(87.33 x 77.80mm)
3.813 x 3.25in.
(96.85 x 82.55mm)
4.30 x 4.00in.
(109.22 x 101.60mm) 
VARIOUS
Contact Arrangements*
Left
SPNO
SPNO
SPNO
SPNO
Right
---
SPNO
SPNC
SPDT
 
Left
SPNO
SPNO
SPNO
SPNO
SPDT
Right
---
SPNO
SPNC
SPDT
SPDT
 
SPNO
SPNC
SPDT
Locked Rotor Current (Amps)
20-35A
35-50A
35-50A
70A
70A
VARIOUS

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