GB2133931B - Electric motor protection switches - Google Patents

Electric motor protection switches

Info

Publication number
GB2133931B
GB2133931B GB08401349A GB8401349A GB2133931B GB 2133931 B GB2133931 B GB 2133931B GB 08401349 A GB08401349 A GB 08401349A GB 8401349 A GB8401349 A GB 8401349A GB 2133931 B GB2133931 B GB 2133931B
Authority
GB
United Kingdom
Prior art keywords
electric motor
motor protection
protection switches
switches
electric
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
GB08401349A
Other versions
GB8401349D0 (en
GB2133931A (en
Inventor
Arthur Malcolm Blackburn
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.)
Otter Controls Ltd
Original Assignee
Otter Controls Ltd
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
Priority claimed from GB838301624A external-priority patent/GB8301624D0/en
Application filed by Otter Controls Ltd filed Critical Otter Controls Ltd
Priority to GB08401349A priority Critical patent/GB2133931B/en
Publication of GB8401349D0 publication Critical patent/GB8401349D0/en
Publication of GB2133931A publication Critical patent/GB2133931A/en
Application granted granted Critical
Publication of GB2133931B publication Critical patent/GB2133931B/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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/164—Heating elements
GB08401349A 1983-01-21 1984-01-19 Electric motor protection switches Expired GB2133931B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08401349A GB2133931B (en) 1983-01-21 1984-01-19 Electric motor protection switches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838301624A GB8301624D0 (en) 1983-01-21 1983-01-21 Electric switches
GB08401349A GB2133931B (en) 1983-01-21 1984-01-19 Electric motor protection switches

Publications (3)

Publication Number Publication Date
GB8401349D0 GB8401349D0 (en) 1984-02-22
GB2133931A GB2133931A (en) 1984-08-01
GB2133931B true GB2133931B (en) 1987-01-07

Family

ID=26284977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08401349A Expired GB2133931B (en) 1983-01-21 1984-01-19 Electric motor protection switches

Country Status (1)

Country Link
GB (1) GB2133931B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8928718D0 (en) * 1989-12-20 1990-02-28 Otter Controls Ltd Improvements relating to thermal switches
US5221915A (en) * 1991-05-24 1993-06-22 Matsushita Electric Industrial Co., Ltd. Thermal protector
DE4411712A1 (en) * 1994-04-05 1995-10-12 Dieter Roegelein Protective device against the thermal load of a small electric motor for high thermal resilience

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB811430A (en) * 1957-06-14 1959-04-08 Belling & Lee Ltd Improvements in electrical bimetallic cut-out devices
US3104296A (en) * 1959-05-11 1963-09-17 Texas Instruments Inc Thermostatic switches

Also Published As

Publication number Publication date
GB8401349D0 (en) 1984-02-22
GB2133931A (en) 1984-08-01

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20040118