Electric circuit interrupting apparatus

Details Electric circuit interrupting apparatus Electric circuit interrupting apparatus

1981-09-18

1983-10-25

Harris, George

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337172, H01H 7120

Patent

active

044122020

ABSTRACT:
An electric circuit interrupter arranged to interrupt overload currents and having a pair of relatively movable normally closed disconnect contacts is associated with an electric circuit interrupter arranged to interrupt load currents and having a pair of relatively movable normally closed contacts forming a parallel circuit to the disconnect contacts only during opening of said disconnect contacts so as to prevent arcing at said disconnect contacts during opening thereof.

REFERENCES:
patent: 3447114 (1969-05-01), Frink et al.
patent: 3614700 (1971-10-01), Beard et al.
patent: 3827010 (1974-07-01), Cameron et al.

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