Trip interlock for static trip circuit breakers

Details Trip interlock for static trip circuit breakers Trip interlock for static trip circuit breakers

1980-03-14

1981-11-10

Dobeck, B.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

361343, 200 50B, H01H 8300

Patent

active

043001106

ABSTRACT:
A static trip unit is comprised of a current transformer module and an electronic programmer module physically and electrically mated together for incorporation in a molded case industrial circuit breaker. Current transformer modules and programmer modules are separately interchangeable to change breaker current ratings and functional capabilities. A trip interlock is included to prevent breaker closure in the absence of either the trip unit or the trip solenoid.

REFERENCES:
patent: 4037184 (1977-07-01), Kempisty et al.
patent: 4071722 (1978-01-01), Hart

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