Motor protector for high temperature applications and thermostat

Details Motor protector for high temperature applications and thermostat Motor protector for high temperature applications and thermostat

1975-09-16

1977-08-09

Harris, George

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337371, 337379, H01H 3754

Patent

active

040414329

ABSTRACT:
A motor protector for use in motors having a high operating temperature employs a snap-acting composite thermostat element to actuate the protector wherein the multilayer thermostatic material embodied in the element has an electrical resistivity value from 20 ohms/c.m.f. to 400 ohms/c.m.f. and a flexivity value from 90 .times. 10.sup.-.sup.7 inches per inch per degree Fahrenheit to 110 .times. 10.sup.-.sup.7 inches per inch per degree Fahrenheit to provide for better calibration, longer life, and better space control in the protector for use in motors having higher operating temperatures.

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