GB1321758A - Circuit breaker with separate heater - Google Patents

Circuit breaker with separate heater

Info

Publication number
GB1321758A
GB1321758A GB5404171A GB1321758DA GB1321758A GB 1321758 A GB1321758 A GB 1321758A GB 5404171 A GB5404171 A GB 5404171A GB 1321758D A GB1321758D A GB 1321758DA GB 1321758 A GB1321758 A GB 1321758A
Authority
GB
United Kingdom
Prior art keywords
contacts
circuit
bimetal
heater
main contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5404171A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COMEL INTERNATIONAL CORP
Original Assignee
COMEL INTERNATIONAL CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by COMEL INTERNATIONAL CORP filed Critical COMEL INTERNATIONAL CORP
Publication of GB1321758A publication Critical patent/GB1321758A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

1321758 Thermal switches; retractive switches COMEL INTERNATIONAL CORP 22 Nov 1971 54041/71 Heading H1N A thermal switch comprises a bimetal 21 movable to the dotted line position shown to open main contacts 16, 24 by an overload heater 20 on bimetal 21, heater 20 being connected in series with main contacts 16, 24 and auxiliary contacts 32, 25b. Contact 32 is formed by the free end of resilient blade 31, which free end is insulated from the fixed end of blade 31, blade 31 being depressible by reset button 26 to open auxiliary contacts 32, 25b and also snap bimetal 21 back to its original position. The electrical circuit is from terminal 17 to main contacts 16, 24, member 23, wire 20a, heater 20, wire 20b, auxiliary contacts 32, 25b, member 25 and terminal 25a. On overload, the circuit is broken by main contacts 16, 24, which remain open until button 26 is depressed when the circuit is further opened by auxiliary contacts 32, 25b, then main contacts 16, 24 close on an open circuit, the circuit firstly being closed by auxiliary contacts 32, 25b when button 26 is released. Bimetal 19 is for ambient temperature compensation.
GB5404171A 1971-11-22 1971-11-22 Circuit breaker with separate heater Expired GB1321758A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5404171 1971-11-22
DE2159822A DE2159822C3 (en) 1971-11-22 1971-12-02 Thermal overcurrent switch

Publications (1)

Publication Number Publication Date
GB1321758A true GB1321758A (en) 1973-06-27

Family

ID=25762113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5404171A Expired GB1321758A (en) 1971-11-22 1971-11-22 Circuit breaker with separate heater

Country Status (2)

Country Link
DE (1) DE2159822C3 (en)
GB (1) GB1321758A (en)

Also Published As

Publication number Publication date
DE2159822C3 (en) 1975-04-24
DE2159822B2 (en) 1974-09-05
DE2159822A1 (en) 1973-06-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees