Combination switch and circuit breaker

Details Combination switch and circuit breaker Combination switch and circuit breaker

2008-05-07

2011-10-04

Fureman, Jared (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

C307S125000

Reexamination Certificate

active

08030799

ABSTRACT:
A combination switch and circuit breaker is operative as both a switch and circuit breaker when connecting a load to an auxiliary power supply, but is only operative as a switch when connecting the load to a main power supply. The combination switch and circuit breaker has a switch component for selectively connecting a load center branch circuit to either a main power supply or an auxiliary power supply. During main power interruption, for example, the switch component of the combination switch and circuit breaker may electrically connect a branch circuit of the load center to an auxiliary power supply, with a circuit breaking component providing current overload protection. However, during normal main power operation, the switch component electrically connects the load center branch circuit to main power, with a branch breaker and a main breaker providing current overload protection for the branch circuit.

REFERENCES:
patent: 6570269 (2003-05-01), McMillan et al.

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