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1. US5502286 - Bell alarm and lock-out for high ampere-rated circuit breakers

Office
United States of America
Application Number 08248910
Application Date 25.05.1994
Publication Number 5502286
Publication Date 26.03.1996
Grant Number 5502286
Grant Date 26.03.1996
Publication Kind A
IPC
H01H 23/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
23Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
H01H 71/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/-H01H83/115
04Means for indicating condition of the switching device
H01H 71/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/-H01H83/115
10Operating or release mechanisms
12Automatic release mechanisms with or without manual release
H01H 71/46
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/-H01H83/115
10Operating or release mechanisms
12Automatic release mechanisms with or without manual release
46having means for operating auxiliary contacts additional to the main contacts
H01H 73/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
73Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
H01H 73/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
73Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
02Details
12Means for indicating condition of the switch
CPC
H01H 71/465
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
10Operating or release mechanisms
12Automatic release mechanisms with or without manual release
46having means for operating auxiliary contacts additional to the main contacts
465Self-contained, easily replaceable microswitches
Applicants General Electric Company
Inventors Pollman John A.
Seymour Raymond K.
Singer Paul H.
Rajotte Paul T.
Agents Menelly Richard A.
Title
(EN) Bell alarm and lock-out for high ampere-rated circuit breakers
Abstract
(EN)

A combined bell alarm and lock-out accessory is connected with the electronic trip unit that controls a high ampere rated circuit breaker. The accessory interacts with the circuit breaker operating mechanism to activate the bell alarm upon circuit interruption and to prevent the closing of the circuit breaker contacts until the accessory is manually reset.


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