Adjustable magnetic tripping device and circuit breaker includin

Details Adjustable magnetic tripping device and circuit breaker includin Adjustable magnetic tripping device and circuit breaker includin

1991-12-23

1992-11-10

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335172, H01H 900

Patent

active

051627655

ABSTRACT:
Adjustment of the static position of the armature of a solenoid or relay-type structure is used to adjust the trip level. An armature stop rod extends through an opening in the structure and is bent over to adjust the length of the stop rod between the frams opening an the active part of the armature. A compact structure is achieved by winding the device coil on a plastic bobbin which provides a bearing for the armature at one end, and an extension through which the adjustment portion of the stop rod extends. This permits ready adjustment after assembly, even when the device spring is arranged around the armature inside the bobbin.

REFERENCES:
patent: 3886507 (1975-05-01), Johnston et al.

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