Providing Solutions in centrifugal
Speed Switching for Over 65 years
MADE IN THE U.S.A.
Motor Switch Selector
The centrifugal mechanism determines the speed at which the stationary electrical switch actuates. The centrifugal mechanism is composed of a conical spring disk mounted to a bracket which is press-fit onto the motor shaft. Weights are attached to the spring disk and centrifugal force causes the spring to snap. This moves the spool on the centrifugal mechanism away from the stationary switch as the motor achieves approximately 75% of its normal running speed.
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Item Number

Mechanism
Outer Diameter (A)

Mechanism Height (G)

Frame (NEMA)

Shaft Diameter (B)

Speed

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C100 N/A 1.98 in50.29 mm N/A 0.51 to 0.60 in12.95 to 15.24 mm N/A 38 to 42 N/A 0.25 to 0.60 in6.35 to 15.24 mm N/A 2P50; 2P60 poles/hertz4P50; 4P60 poles/hertz Add To Cart
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C150 N/A 2.25 in57.15 mm N/A 0.65 to 0.75 in16.51 to 19.05 mm N/A 42 to 48 N/A 0.30 to 0.80 in7.62 to 20.32 mm N/A 2P50; 2P60 poles/hertz4P50; 4P60 poles/hertz6P50; 6P60 poles/hertz8P50; 8P60 poles/hertz Add To Cart
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C170 N/A 2.42 in61.47 mm N/A 0.64 to 0.74 in16.26 to 18.80 mm N/A 48 to 56 N/A 0.35 to 0.80 in8.89 to 20.32 mm N/A 2P50; 2P60 poles/hertz4P50; 4P60 poles/hertz6P50; 6P60 poles/hertz8P50; 8P60 poles/hertz Add To Cart
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C200 N/A 2.61 in66.29 mm N/A 0.63 to 0.76 in16.00 to 19.30 mm N/A 48 to 145 N/A 0.40 to 1.00 in10.16 to 25.4 mm N/A 2P50; 2P60 poles/hertz4P50; 4P60 poles/hertz6P50; 6P60 poles/hertz8P50; 8P60 poles/hertz Add To Cart
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C250 N/A 2.78 in70.61 mm N/A 0.66 to 0.72 in16.76 mm N/A 145 to 180 N/A 0.60 to 1.40 in15.24 to 35.56 mm N/A 2P50; 2P60 poles/hertz4P50; 4P60 poles/hertz6P50; 6P60 poles/hertz8P50; 8P60 poles/hertz Add To Cart
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C300 N/A 3.56 in90.42 mm N/A 0.77 to 0.96 in19.56 to 24.38 mm N/A 180 to 215 N/A 0.80 to 1.70 in20.32 to 43.18 mm N/A 2P50; 2P60 poles/hertz4P50; 4P60 poles/hertz6P50; 6P60 poles/hertz8P50; 8P60 poles/hertz Add To Cart
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