Patents
Patents for H01H 79 - Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected (267)
01/1999
01/07/1999DE19727744A1 Short-circuiting cartridge for electric arc protection arrangement
10/1998
10/14/1998EP0871191A1 Short circuiting device and switchboard section equipped therewith
08/1998
08/26/1998EP0860927A1 Protection circuit arrangement for surge arrester
02/1998
02/10/1998US5716243 Automotive battery connector assembly
10/1997
10/22/1997EP0801804A2 Stray arc protective device, especially for low-voltage switching installations for distributing electric power
08/1997
08/13/1997EP0789377A1 Protection device against a wrong voltage application to the equipment of a transportsystem
07/1997
07/22/1997US5650902 Substation for the distribution of electrical energy protected against arcing faults
02/1997
02/04/1997CA2182141A1 Thermally-activated switch for short-circuiting a battery cell
10/1996
10/31/1996DE19616392A1 Motor vehicle battery connector with terminal post and contact element
10/09/1996EP0736945A1 Disconnector-limit protection for three-phase electric transformers
06/1996
06/27/1996WO1996019816A1 Electric switching device
05/1996
05/02/1996DE4438591A1 Interference arcing protection system for power distribution switchgear
04/1996
04/23/1996US5510598 Electro-thermally actuated switch
02/1996
02/08/1996DE19504974C1 Arcing protection device for electrical distribution switchgear
10/1995
10/04/1995CN1109631A High frequency electron circuit over-current protective method and over-current protector
09/1995
09/28/1995WO1995022167A3 Stray arc protective device, especially for low-voltage switching installations for distributing electric power
08/1995
08/17/1995WO1995022167A2 Stray arc protective device, especially for low-voltage switching installations for distributing electric power
08/10/1995DE4404074A1 Störlichtbogen-Schutzvorrichtung, insbesondere für Niederspannungs-Schaltanlagen zur Verteilung elektrischer Energie Arc-fault protection device, especially for low-voltage switchgear for distributing electrical energy
08/02/1995EP0665568A1 Cell bypass switch
08/01/1995US5438173 Cell bypass switch
03/1995
03/30/1995WO1995008857A1 Switching installation for distributing electric power protected against arc interference
03/23/1995DE4331992A1 Cell-like switching installation which is protected against internal arcs, for distribution of electrical energy
11/1994
11/23/1994CN2183612Y Over-current protector for high-frequency electronic circuit
09/1994
09/08/1994DE4406589A1 Electrothermally operated switch
09/08/1994DE4404669A1 Thermally switchable electrical short-circuiting link, and a method for its production
04/1994
04/21/1994DE4235329A1 Short-circuiting device for extinguishing arcing in LV distribution switchgear - is triggered to urge bridging conductor against electrodes by electrodynamic forces of co-directional short-circuit currents
11/1992
11/24/1992US5166855 Surge protector with thermal failsafe
09/1992
09/23/1992EP0504464A1 Switching device for interrupting a circuit
09/23/1992EP0504463A1 Circuit arrangement for power supply
09/23/1992EP0504462A1 Device to interrupt a circuit
09/23/1992EP0504461A1 Switch device to interrupt a circuit
09/02/1992EP0501802A1 Surge protector with thermal failsafe
03/1992
03/05/1992DE4127412A1 Electromechanical protection device for semiconductor switch - uses magnetic release controlling contact in current path for semiconductor switch
02/1992
02/11/1992US5087999 Capacitor bank provided with a protective device
01/1992
01/15/1992EP0465694A1 Switching device
12/1991
12/10/1991US5072203 Method and device for protecting starters from fault currents
08/1991
08/06/1991CA1287369C Fault current diverter
06/1991
06/18/1991US5025119 Electrical control signal
03/1991
03/27/1991EP0418734A2 Method and device for protecting starters from fault currents
03/18/1991CA2019374A1 Method and device for protecting starters from fault currents
02/1991
02/05/1991US4991050 Method and device for protecting starters from fault currents
01/1991
01/08/1991US4982571 Automatic hydraulic activation mechanism
04/1990
04/18/1990EP0363746A1 Overcurrent protection device for electrical networks and apparatuses
07/1989
07/18/1989US4849806 Bridge between semiconductor and aluminum alloy
07/04/1989US4845455 Thermally-sensible overcurrent protective relay including heater holder
06/1989
06/14/1989CN2039464U Protector for communication equipment
04/1989
04/04/1989CA1252192A1 Shunt effect low-voltage circuit-breaker
11/1988
11/02/1988EP0173690B1 Thermally-activated, shorting diode switch having non-operationally-alternable junction path
09/1988
09/27/1988US4774558 Thermally-activated, shorting diode switch having non-operationally-alterable junction path
02/1988
02/17/1988EP0255992A2 A double-pole circuit breaker for civil range electric equipment, incorporating an arc change-over device
09/1987
09/22/1987US4695913 Shunt effect low voltage circuit breaker
08/1987
08/04/1987US4685021 Fault current diverter
03/1987
03/17/1987US4651253 Shunting element
12/1986
12/17/1986EP0205369A1 Low tension circuit breaker with a shunt effect
03/1986
03/12/1986EP0173690A1 Thermally-activated, shorting diode switch having non-operationally-alternable junction path.
02/1986
02/12/1986EP0170883A1 By-pass element
02/05/1986EP0170088A1 By-pass element
09/1985
09/12/1985WO1985004045A1 Thermally-activated, shorting diode switch having non-operationally-alternable junction path
08/1983
08/02/1983US4396969 Gas tube protector module
08/1982
08/31/1982US4347414 Arc shorting device
07/1982
07/06/1982CA1127284A1 High voltage breaker device
02/1982
02/02/1982US4314300 Fused short circuit and grounding switch
08/1981
08/25/1981US4286301 H.V. current cut-out circuit
03/1979
03/20/1979CA1051111A1 Monitoring relay
02/1978
02/14/1978US4074337 Protector for telecommunication lines
06/1976
06/08/1976US3962664 Current protector
05/1976
05/25/1976US3959753 Circuit interrupter with load side short circuit
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