Motor protector for high temperature applications and thermostat material for use therein

摘要

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 x 10<->7 inches per inch per degree Fahrenheit to 110 x 10<->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.