Modular surge suppressor
AssigneeEaton Corporation
InventorsMark E. Innes, Nelson R. Palmer
Life of this patent
Estimating the term…
Abstract
An electrical switching device such as a motor starter is adapted to be controlled through control signals in control wiring and includes separable contacts; an operating mechanism for opening and closing the separable contacts; first terminals for interfacing the control signals to the operating mechanism; a modular surge suppressor circuit for suppressing a surge associated with the control signals, with the modular surge suppressor circuit including second terminals for engaging the first terminals and interfacing the control signals thereto; and a modular terminal block for interfacing the control signals in the control wiring to the modular surge suppressor circuit.
Claims20
An electrical switching device adapted to be controlled through control signals in control wiring, said device comprising:
- separable contacts;
- means for opening and closing said separable contacts;
- first terminal means for interfacing said control signals to said means for opening and closing said separable contacts;
- surge suppressor means for suppressing a surge associated with said control signals, said surge suppressor means including second terminal means for engaging said first terminal means and interfacing said control signals thereto;
- and
- means for interfacing said control signals in said control wiring to said surge suppressor means.
An electrical switching device adapted to be controlled through control signals in control wiring, said device comprising:
- separable contacts;
- means for operating said separable contacts;
- first terminal means for interfacing said control signals to said means for operating said separable contacts;
- modular surge suppressor means at least for suppressing a surge associated with said control signals, said modular surge suppressor means including second terminal means for engaging said first terminal means and interfacing said control signals thereto, and also including third terminal means for interfacing said control signals to the second terminal means;
- and
- modular terminal block means for engaging said control wiring and interfacing said control signals to the third terminal means.
A motor starter adapted to be controlled through control signals in control wiring, said motor starter comprising:
- electrical contactor means including separable contacts and operating means for opening and closing said separable contacts;
- overload relay means operatively associated with said electrical contactor means for controlling said operating means using said control signals;
- first terminal means for interfacing said control signals to said overload relay means;
- modular surge suppressor means at least for suppressing a surge associated with said control signals, said modular surge suppressor means including second terminal means for engaging said first terminal means and interfacing said control signals thereto, and also including third terminal means for interfacing said control signals to the second terminal means;
- and
- modular terminal block means for engaging said control wiring and interfacing said control signals to the third terminal means.
Dependencies are inferred from the claim text.