US 2003/0193381 A1 · Externally controllable circuit breaker

Abstract

An externally controllable circuit breaker includes a set of main contacts, an operating mechanism for opening and closing the main contacts; and a set of secondary contacts electrically connected in series with the main contacts. A control mechanism to open and close the secondary contacts includes an electromagnet with an armature having a first position, which opens the secondary contacts, and a second position, which closes the secondary contacts. The electromagnet also includes a coil electrically interconnected with the main contacts for energization therefrom and adapted for control by one or two external signals from one or two external contacts to operate the armature between the first and second positions.

Claims24

Dependent claims

An externally controllable circuit breaker comprising:

a set of main contacts;
an operating mechanism for opening and closing said set of main contacts;
a set of secondary contacts electrically connected in series with said set of main contacts;
a control mechanism for opening and closing said set of secondary contacts, said control mechanism comprising an electromagnet including an armature having a first position which opens said set of secondary contacts and having a second position which closes said set of secondary contacts, said electromagnet also including a coil electrically interconnected with said set of main contacts for energization therefrom and adapted for control by at least one external signal to operate said armature between said first position and said second position.

1 more element

Dependencies are inferred from the claim text.

Externally controllable circuit breaker

Life of this patent

Externally controllable circuit breaker

Life of this patent

Abstract

Claims24