CA2127868A1 - Dual element fuse - Google Patents

Dual element fuse

Info

Publication number
CA2127868A1
CA2127868A1 CA 2127868 CA2127868A CA2127868A1 CA 2127868 A1 CA2127868 A1 CA 2127868A1 CA 2127868 CA2127868 CA 2127868 CA 2127868 A CA2127868 A CA 2127868A CA 2127868 A1 CA2127868 A1 CA 2127868A1
Authority
CA
Canada
Prior art keywords
plunger
sleeve
protective device
overcurrent protective
housing
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.)
Granted
Application number
CA 2127868
Other languages
French (fr)
Other versions
CA2127868C (en
Inventor
Tony Biasutti
Peter Morgan
Mary A. Ruggiero
Brian A. Young
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.)
Carbone Of America (lcl) Ltd/carbone D'amerique (lcl) Ltee
Original Assignee
Nor Am Electrical 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
Application filed by Nor Am Electrical Ltd filed Critical Nor Am Electrical Ltd
Priority to CA 2127868 priority Critical patent/CA2127868C/en
Publication of CA2127868A1 publication Critical patent/CA2127868A1/en
Application granted granted Critical
Publication of CA2127868C publication Critical patent/CA2127868C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/36—Means for applying mechanical tension to fusible member

Landscapes

  • Fuses (AREA)

Abstract

An electrical interruption device is disclosed in which an overcurrent protective device is provided to interrupt electric current flow on a sustained overcurrent current occurring. The overcurrent protective device is characterized by a plunger which is held in tension against the force of a spring by a low temperature solder, and further in which a sleeve of insulating material, such as silicone, is provided about the plunger. Preferably, the overcurrent protective device includes a housing, with the plunger disposed in the housing and having one end extending therefrom to provide electric communication with the remainder of the electric circuit. The sleeve of insulating material preferably being located about the end of the plunger which extends from the housing. On a predetermined condition causing the solder to melt, the plunger is released and under the force of the spring is moved to a position retracted within the sleeve, interrupting the current flow. Advantageously, the overcurrent protective device may be used together with pulverulent arc quenching material. The sleeve acts to isolate the pulverulent arc quenching material from the plunger and prevent its interference with the plunger as it is moved under the force of the spring.
CA 2127868 1992-10-02 1992-10-02 Dual element fuse Expired - Fee Related CA2127868C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2127868 CA2127868C (en) 1992-10-02 1992-10-02 Dual element fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2127868 CA2127868C (en) 1992-10-02 1992-10-02 Dual element fuse

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2079772 Division CA2079772C (en) 1992-10-02 1992-10-02 Dual element fuse

Publications (2)

Publication Number Publication Date
CA2127868A1 true CA2127868A1 (en) 1994-04-03
CA2127868C CA2127868C (en) 1998-06-16

Family

ID=4153993

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2127868 Expired - Fee Related CA2127868C (en) 1992-10-02 1992-10-02 Dual element fuse

Country Status (1)

Country Link
CA (1) CA2127868C (en)

Also Published As

Publication number Publication date
CA2127868C (en) 1998-06-16

Similar Documents

Publication Publication Date Title
US6795290B2 (en) Surge arrestor
US4490707A (en) Explosively-actuated, multi-gap high voltage switch
GR3023728T3 (en) Apparatus switch with integrated over-current protection.
US4617544A (en) High voltage, high rupture capacity fuse
ATE140822T1 (en) OVERLOAD PROTECTION DEVICE
GB1276801A (en) Line protector for a communications circuit
CA2324938A1 (en) Thermally responsive protection apparatus
IE56974B1 (en) An electric switching device
MY122160A (en) Motor protector apparatus
CA2159188A1 (en) An electric fuse and protective circuit
CA2063771A1 (en) Thermal overload protection device for electronic components
US4527215A (en) Valve type voltage arrester device
US5187463A (en) Compact time delay fuse
JPS56136428A (en) Protective switch
HK12196A (en) Automatic cutout
US2918551A (en) Fuses with built-in indicating plungers
US5191605A (en) Telephone surge protector
CA2127868A1 (en) Dual element fuse
US5072327A (en) Electronic protection device for use with a fuse mount
ES2007964A6 (en) Fuse for use in high-voltage circuit
EP0778598A3 (en) Switch with a switching mechanism actuated at an excessive temperature
US3993933A (en) Electric overvoltage gas arrester with metallic shorting mechanism
JPH07211431A (en) Fail safe device for use together with communication surge suppressor
JPS5673831A (en) Line protection switch
CA2181904A1 (en) Residual current safety switch

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed