Combined trip unit and accessory module for electronic trip circ

Details Combined trip unit and accessory module for electronic trip circ Combined trip unit and accessory module for electronic trip circ

1987-07-30

1988-07-12

Broome, H.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With housing or support means

200293, H01H 902, H01H 1304

Patent

active

047572949

ABSTRACT:
A combined trip actuator and accessory module for molded case circuit breakers is accessible in the field for user selected accessory options. The trip actuator includes a U-shaped stator with a permanent magnet at the end of one leg. A spring-loaded armature member extends across both legs to form a closed-loop magnetic circuit. The over-current trip coil and shunt trip coil are arranged on one leg with the undervoltage coil arranged on the other leg. The accessory module is accessible from the top surface of the breaker cover for field installation of the undervoltage and shunt trip coils to provide the corresponding undervoltage and shunt trip functions.

REFERENCES:
patent: 2883483 (1959-04-01), Horn
patent: 3821607 (1974-06-01), Matsko et al.
patent: 4255637 (1987-03-01), Matsuda
patent: 4360739 (1982-11-01), Goldstein
patent: 4366459 (1982-12-01), Vitola
patent: 4485282 (1984-11-01), Lee
patent: 4622444 (1986-11-01), Kandatsu et al.

Affiliated with

Also associated with

Rating

Combined trip unit and accessory module for electronic trip circ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combined trip unit and accessory module for electronic trip circ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined trip unit and accessory module for electronic trip circ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-666638