Moving contact blade barrier

Details Moving contact blade barrier Moving contact blade barrier

1988-09-08

1990-05-15

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200146R, H01H 3304, H01H 3312

Patent

active

049260162

ABSTRACT:
A single piece contact barrier for separating and maintaining the spacing of the contact blades in a circuit breaker. The barrier is also adapted to form an insulating barrier between the contact blades and produce an arc quenching vapor. Under certain circumstances, when one contact and its associated contact are separated, an arc is formed between the contacts. The heat generated by the arc causes the barrier to vaporize in near the arc such that the vapor tends to quench the arc.

REFERENCES:
patent: 3560683 (1971-02-01), Maier
patent: 4716265 (1987-12-01), Fujii et al.

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