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