Temperature compensated thermal protector

Details Temperature compensated thermal protector Temperature compensated thermal protector

1988-06-06

1990-02-13

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

338 22R, H01H 504

Patent

active

049011863

ABSTRACT:
A protective PTC device is heated by another PTC device to an elevated temperature greater than ambient but less than its switching temperature. The elevated temperature of the protective PTC device reduces its switching response time, and minimizes variations in such response time with variations in ambient temperature.

REFERENCES:
patent: 3644864 (1972-02-01), Hirsbrunner et al.
patent: 3916264 (1975-10-01), Berg

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