Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Tripping means
Patent
1977-02-07
1978-10-03
Hall, George T.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Tripping means
200286, 337360, H01H 900
Patent
active
041186800
ABSTRACT:
A circuit interrupter characterized by an insulating housing containing a circuit interrupter mechanism, calibration means operatively connected to the mechanism for adjusting operation of the contacts, the housing having a hole aligned with the calibration means, and a plastic plug in the hole, whereby a tamper-proof circuit interrupter is provided.
REFERENCES:
patent: 3797007 (1974-03-01), Salvati et al.
Hall George T.
Johns L. P.
Westinghouse Electric Corp.
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