Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1990-05-03
1991-07-30
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335202, H01H 902
Patent
active
050363034
ABSTRACT:
An integrated protection unit is a circuit interrupter which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent trip actuator and multiple accessory unit can be field-installed within the integrated protection unit. The combined actuator-accessory unit includes electronic control circuitry for the accessories along with mechanical trip and reset interface components. One such accessory used with the integrated protection unit is a bell alarm for indicating the status of the circuit interrupter contacts.
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patent: 4894631 (1990-01-01), Castonguay et al.
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patent: 4939490 (1990-07-01), Bernier et al.
Castonguay Roger N.
Papallo, Jr. Thomas F.
Bernkopf Walter C.
Donovan Lincoln
General Electric Company
Jacob Fred
Menelly Richard A.
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