Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 77 - Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
Patents for H01H 77 - Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting (1,434)
11/1998
11/28/1998CA2238734A1 Circuit breaker with welded contact interlock, gas sealing cam rider and double rate spring
11/28/1998CA2238705A1 Circuit interrupter with plasma arc acceleration chamber and contact arm housing
11/25/1998CN2298600Y Hand switch protector
11/11/1998EP0876675A1 Electrical switching device
11/04/1998CN2296574Y Short circuit protector for mine lamp
10/1998
10/29/1998WO1998048436A1 Electromagnetic switching device
10/27/1998US5828196 Apparatus and method for controlling an electric motor
10/08/1998DE19716380C1 Elektromagnetisches Schaltgerät Electromagnetic switching device
09/1998
09/30/1998EP0867895A2 Current limiter and/or circuit breaker with PTC element
09/27/1998CA2233351A1 Current limiter and/or circuit breaker with ptc element
09/23/1998CN2292328Y Outdoor high-voltage drop off type segmentation device
09/12/1998CA2231655A1 Reusable fuse using current limiting polymer
08/1998
08/13/1998WO1998035419A1 Circuit breaker for disconnecting an electrical apparatus from electrical network
08/11/1998US5793270 Circuit breaker with latch preventing rebound of blow open contact arm
07/1998
07/15/1998EP0853327A2 Current switch with moving contacts
06/1998
06/24/1998CN1185639A Current switch with moveable contact
06/19/1998CA2225009A1 Circuit breaker with improved trip mechanism
06/10/1998CN1184553A Electromagnetic switch
05/1998
05/20/1998CN2282263Y Three phase split outdoor vacuum load switch
04/1998
04/15/1998EP0695458B1 Switching device
04/08/1998EP0834184A1 Device for protection against overload of the switching contacts of a switching device
04/02/1998DE19700758C1 Electrical contact switching device
03/1998
03/25/1998EP0750788B1 Current-limiting switch
03/24/1998US5731560 Operating mechanism of a circuit breaker with a locking system disengageable on a short circuit
03/18/1998EP0829092A1 Electromagnetic switch
03/04/1998EP0827174A1 Circuit breaker with latch preventing rebound of blow open contact arm
03/03/1998CA2214541A1 Circuit breaker with latch preventing rebound of blow open contact arm
02/1998
02/05/1998WO1998005053A1 Current-limiting power circuit-breaker
02/05/1998DE19629867A1 Current limiting electrical circuit-breaker switch
01/1998
01/15/1998WO1998001883A1 Electrical circuit breakers
01/14/1998CN1170224A Current limiting apparatus for circuit breaker
12/1997
12/04/1997WO1997045853A1 Electrical contact assembly
12/04/1997WO1997045852A1 Fast tripping electrical switching device
12/02/1997US5694098 Rate of current rise sensitive slot motor and switching apparatus having current limiting contact arrangement incorporating said slot motor
10/1997
10/15/1997EP0725993B1 An overload protective system
10/15/1997CN1162186A Circuit-breaker operating mechanism with locking device capable of tripping when short circuit
09/1997
09/24/1997CN1035967C 自动切换装置 Automatic switching device
09/02/1997US5663544 Switching device having a vacuum circuit-breaker shunt connected with a gas-blast circuit breaker
08/1997
08/28/1997DE19630470C1 Current-limiting circuit-breaker switch with two lugs on centrally pivoted lever
08/19/1997CA2119211C Instrument switch having integrated overcurrent protection
08/13/1997EP0789380A1 Operating mechanism for a circuit breaker with a latch disengageable by a short circuit
05/1997
05/27/1997US5633483 Current limiting circuit breaker operating mechanism
05/13/1997USRE35507 Repulsion type circuit breaker control device
05/07/1997EP0482197B1 Circuit breaker
05/07/1997DE19540972A1 Current-limiting contact system for LV circuit-breaker
04/1997
04/16/1997EP0767981A1 A device for protection against overcurrents in electric circuits
04/16/1997EP0667050B1 Device for protection against overcurrents
04/08/1997CA2078390C Surge absorber
04/01/1997US5616898 Medium-voltage or high-voltage circuit-breaker
03/1997
03/12/1997EP0563360B1 Operating mechanism for a circuit breaker
02/1997
02/26/1997CN2248391Y Improved structure of safety switch with function of protecting line
01/1997
01/23/1997DE19526592A1 Electric switch esp. circuit-breaker
01/09/1997DE19522603A1 Schutzeinrichtung gegen Überlastung der Schaltkontakte eines Schaltgerätes Device to prevent overloading of the switching contacts of a switching device
01/03/1997WO1997000531A1 Device for protection against overload of the switching contacts of a switching device
01/02/1997EP0750788A1 Current-limiting switch
12/1996
12/24/1996US5587861 Method for interrupting electrical power between two conductors
12/17/1996US5585609 Circuit breaker with movable main contact multi-force-level biasing element
12/05/1996WO1996038851A1 Electromagnetic switch
11/1996
11/26/1996US5579198 Apparatus for interrupting electrical power between two conductors
10/1996
10/22/1996US5566818 Movable contactor device in circuit breaker
10/15/1996US5565827 Circuit breaker with current conducting blow open latch
10/15/1996US5565826 Device for protecting against overcurrents in electric circuits
10/09/1996CN2237292Y Safety plug
08/1996
08/14/1996EP0725993A1 An overload protective system
08/14/1996EP0567614B1 Current limiting circuit breaker with over-molded magnet and metal plates
08/14/1996EP0565577B1 Thermally responsive electric switch
07/1996
07/25/1996DE19519756C1 Electromagnetic switching device for load currents
07/23/1996US5539167 Blade suspension assemlby for a circuit breaker
07/09/1996US5534835 Circuit breaker with molded cam surfaces
07/09/1996US5534674 Current limiting contact system for circuit breakers
07/03/1996CN1125996A Switching device
06/1996
06/19/1996EP0717427A2 Circuit breaker stationary contact strap
06/19/1996CN2229716Y Protective unit thermal sensitive semi-self-resetting apparatus
06/19/1996CN2229715Y Bayonet protective unit thermal sensitive semi- self-resetting apparatus
06/19/1996CN1124873A An electromagnetic actuator for a low voltage circuit breaker
06/18/1996US5528009 Vacuum switch with a current-loop assembly
05/1996
05/28/1996US5521569 Hyper-rapid circuit breaker
05/14/1996US5517164 Molded case circuit breaker having movable contact finger releasably locked to an operating mechanism
05/07/1996US5515229 Overcurrent protector with overheat prevention means
05/07/1996US5515018 Pivoting circuit breaker load terminal
05/01/1996CN2226341Y Wire wrapped type protecting unit heat-sensitive semi-auto-resetting apparatus
04/1996
04/23/1996US5510761 Contact system for a current limiting unit
04/02/1996US5504467 Circuit breaker with improved contact arm follower spring arrangement
04/02/1996US5504291 Contact blade assembly for a circuit breaker
03/1996
03/26/1996US5502428 Circuit breaker with one-piece crossbar including an integrally molded operating arm
03/13/1996CN1118511A Electrical circuit breaker with electromagnetic actuator for high ratings
03/12/1996US5498846 Toggle switches
02/1996
02/13/1996US5491460 Instrument switch having integrated overcurrent protection
02/07/1996EP0695461A1 Blow-off terminal for a circuit breaker
02/07/1996EP0695460A1 Blade suspension assembly for a circuit breaker
02/07/1996EP0695458A1 Switching device
01/1996
01/31/1996EP0694206A1 Contact blade assembly for a circuit breaker
01/24/1996EP0693765A1 Electromagnetic actuator for a low tension circuit breaker
01/24/1996EP0693764A1 Electrical circuit breaker with electromagnetic actuator for H.T.
01/10/1996EP0691665A1 Main cut-out
01/03/1996EP0632928B1 Vacuum switch with a current-loop assembly
12/1995
12/21/1995WO1995034931A1 A device for protection against overcurrents in electric circuits
11/1995
11/21/1995US5469121 Multiple current-limiting circuit breaker with electrodynamic repulsion
10/1995
10/25/1995EP0678886A1 Medium or high voltage circuit-breaker
10/05/1995WO1995026586A1 Thermal overload protection for switches
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