Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 71 - Details of the protective switches or relays covered by groups
Patents for H01H 71 - Details of the protective switches or relays covered by groups (18,450)
10/1991
10/16/1991EP0451678A2 Overload protective device
10/16/1991EP0451481A2 Test device for earth fault circuit breaker
10/16/1991EP0451480A1 Fault-current protective switch in module construction
10/15/1991US5057806 Crossbar assembly
10/15/1991CA1290798C Kinematic transmission system between the operating mechanism and polesof a moulded insulating case electrical circuit-breaker
10/15/1991CA1290795C Thermal circuit breaker
10/13/1991WO1991016720A1 A method of manufacturing a circuit breaker
10/09/1991EP0450904A2 Circuit breaker positive off interlock
10/09/1991EP0450366A1 Push button operated circuit breaker
10/09/1991CN1014283B Circuite breaker with adjustable thermal trip unit
10/08/1991CA1290373C Rating plug enclosure for molded case circuit breakers
10/04/1991CA2038484A1 Automatic transfer switch
10/04/1991CA2037792A1 Circuit breaker positive off interlock
10/01/1991US5053736 Molded split case electromagnetic circuit breaker assembly
09/1991
09/25/1991EP0447417A1 A multi-pole switch comprising a tripping module.
09/24/1991US5051859 Current-limiting load cutout
09/24/1991US5051731 Blown circuit breaker indicator with light emitting diode
09/19/1991DE4023655A1 Auxiliary switch for manual motor protective circuit breaker - has spring-loaded pawl lever and is fitted in housing secured to circuit breaker from below
09/19/1991DE4008506A1 Electric switch operating mechanism - has spring-biased knee-lever drive acting on pivoted switch arm
09/17/1991US5049849 Circuit breaker
09/17/1991US5049846 Compact molded case circuit breaker with increased ampere rating
09/11/1991CN2084656U Safety switch
09/04/1991EP0445048A1 Current sensor for electronic trip device of a circuit breaker
09/04/1991EP0444283A1 Automatic cutout with an electromagnetic trip
09/04/1991CN1013816B Operating machanism for a low voltage electrical circuit breaker
09/02/1991WO1991013455A1 Sectionalizer with externally mounted electronic controller
09/02/1991CA2037363A1 Current sensor for an electronic trip device
08/1991
08/29/1991DE4005713A1 Rack-mounted circuit breaker - has balancing weights distributing mass of changeover linkage
08/28/1991EP0444010A2 Switch latch for fault-current protective switch
08/28/1991EP0443684A2 Circuit breaker
08/28/1991EP0443011A1 Processor controlled circuit breaker trip system having an intelligent rating plug.
08/27/1991US5043688 Actuator-accessory interface unit for molded case circuit interrupter
08/24/1991WO1991013454A1 A circuit breaker
08/24/1991CA2053238A1 Circuit breaker
08/22/1991WO1991012643A1 Device for motor and short-circuit protection
08/22/1991DE4104524A1 Electrical switch panel for power distributor - has electromechanical control devices for switches inserted in respective current circuits
08/21/1991EP0442311A2 Fast electromagnetic trip unit for electrical switching devices
08/20/1991US5041805 Remote-controlled circuit breaker
08/14/1991EP0441722A1 Disconnectable surge arrestor for low voltage power distribution network
08/14/1991EP0441637A1 Improvements in or relating to electric switches
08/14/1991EP0441472A2 Circuit breaker with rating plug having memory
08/14/1991DE4004359A1 Electro-magnetic quick-release mechanism for electric switch - has magnetic circuit incorporating bottom wall section of ferromagnetic housing of quick-release mechanism
08/14/1991DE4003743A1 Overcurrent protection device - incorporates setting for different currents bimetallic deformations
08/14/1991CN1053867A Electrical recloser having external mounting arrangement for electronics assembly
08/13/1991CA2036032A1 Electrical circuit breaker protection device
08/07/1991EP0440269A2 Circuit breaker
08/07/1991EP0439882A1 Auxiliary switch retainer for circuit breakers and actuator member
08/07/1991CN1053716A Circuit breaker with rating plug having memory
08/06/1991US5038121 Molded case circuit interrupter trip indicating handle
07/1991
07/30/1991US5036303 Bell alarm accessory arrangement for molded case circuit interrupter
07/25/1991DE4100772A1 Undervoltage trigger for switch latch - has shape memory element coupled to release lever and tensioning force storer
07/24/1991EP0437553A1 Self-coordinated device for the control and protection of electrical equipement.
07/17/1991EP0437220A2 Circuit breaker with leakage current detecting functions
07/17/1991CN1013231B Current breaking device with solid-state switch and built-in protective circuit breaker
07/16/1991US5032697 Actuating device for an electrical switch
07/12/1991WO1991011013A1 Electrical recloser having external mounting arrangement for electronics assembly
07/10/1991EP0436448A1 Electromagnetic relay polarised by a permanent magnet
07/09/1991CA1285973C Interchangeable mechanism for molded case circuit breaker
07/03/1991EP0434964A1 A set of assembly elements intended to facilitate concurrent electrical connection of a plurality of modular automatic circuit breakers
06/1991
06/27/1991WO1991002370A3 Miniature circuit breakers
06/26/1991EP0434338A2 Circuit breaker with auxiliary status indicating switch
06/25/1991US5027096 Key blocks for circuit breaker
06/25/1991US5027095 Molded case circuit breaker cover insert
06/25/1991US5027093 Molded case circuit breaker actuator-accessory unit having component tolerance compensation
06/25/1991US5027092 Tripping arrangement for molded case circuit interrupter
06/25/1991US5027091 Molded case circuit interrupter rating plug keying and interlock arrangement
06/18/1991US5025236 Circuit breaker
06/12/1991EP0431461A2 Switch mechanism for an electrical switch
06/12/1991EP0431158A1 Unitary breaker assembly for a circuit breaker.
06/11/1991US5023583 Circuit breaker contact operating structure
06/11/1991US5023582 Molded case circuit breaker compact latch asssembly
06/06/1991DE3940425A1 Remote control with position indicator for manual switchgear - employs rotary switch whose operation modifies visual aspect in window in conjunction with movement of switchgear contacts
06/05/1991EP0430007A2 A mechanical control device for an electric switch
06/04/1991US5021819 Circuit breaker with positive over-center acceleration
05/1991
05/28/1991US5019937 Circuit improvement apparatus having combination current limiting fuse and resettable vacuum switch to prevent single-phasing of three-phase loads
05/22/1991EP0428168A2 Isolator switch with safety operating device
05/22/1991EP0427826A1 Automatic cutout.
05/21/1991US5017899 Circuit breaker
05/16/1991DE3937546A1 Mobile protection device for electrical load - has manual button acting simultaneously on armature and pivoted contact carrier
05/15/1991EP0427641A1 Remote control unit for an electric circuit breaker
05/15/1991CN1051455A Adjustable circuit breaker with draw out interlock
05/14/1991US5015983 Compact circuit interrupter having multiple ampere ratings
05/14/1991US5015977 Circuit breaker positive trip indication spring
05/08/1991EP0426254A1 A trip device for an electric switch
05/08/1991CN1051268A Circuit breaker with adjustable low magnetic trip
05/07/1991US5014025 Actuator-accessory reset arrangement for molded case circuit interrupter or electric switch
05/02/1991EP0425103A2 Circuit breaker with adjustable low magnetic trip
05/02/1991DE4034392A1 Modular miniaturised switch for domestic and industrial appliances - allows for cooperation of switch poles in adjacent modules in which trip levers carry interaction pins
04/1991
04/30/1991US5012495 Switch and circuit breaker combination device
04/30/1991US5012215 Protected switch contactor apparatus
04/24/1991EP0423245A1 An electromagnetic actuator of the type of a relay
04/24/1991CN1050945A Ct quick change assembly and force transitting spacer
04/23/1991CA1283434C Molded case circuit breaker with an improved contoured cradle
04/18/1991WO1991005391A1 Control and protection devices by means of the quantified energetic pulse technique
04/17/1991EP0422868A2 CT quick change assembly and force transmitting spacer
04/17/1991CN1050789A Circuit breaker with moving magnetic core for low current magnetic trip
04/16/1991US5008645 Circuit breaker with tamper indicating calibration means
04/16/1991US5008504 Switching mechanism in circuit breaker
04/16/1991CA1283154C Modular integral circuit interrupter
04/16/1991CA1283153C Assembly for coupling switch handles
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