Circuit breaker integral temperature monitoring for advance...

Details Circuit breaker integral temperature monitoring for advance... Circuit breaker integral temperature monitoring for advance...

2007-06-11

2009-02-24

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

C361S106000, C361S057000

Reexamination Certificate

active

07495876

ABSTRACT:
A circuit breaker includes a breaker enclosure, a plurality of conductor connections, and a temperature sensor. The breaker enclosure contains internal components that include a trip unit. The plurality of conductor connections electrically couple the trip unit to a plurality of power conductors. The temperature sensor is located to sense heat radiated by the conductor connections and is positioned inside the enclosure.

REFERENCES:
patent: 5198956 (1993-03-01), Dvorak
patent: 5835320 (1998-11-01), Palmieri et al.
patent: 2006/0119344 (2006-06-01), Benke et al.
National Semiconductor brochure entitled “LM75 Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface” (18 pages)—(Oct. 2005) (from www.national.com website).

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