Patents
Patents for H01H 77 - Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting (1,434)
02/2004
02/18/2004CN1476623A Current limiting low-voltage power circuit breaker
02/12/2004DE10239641B3 Simplified contact system for low voltage circuit breaker, comprises compression spring with bent end, forming center of pressure and bearing point against contact arm
02/05/2004DE10124985B4 Auslösevorrichtung eines Schutzschalters und Schutzschaltersystem Release mechanism of a circuit breaker and circuit breaker system
02/05/2004DE10013161B4 Kombinierte Auslösevorrichtung für einen Leistungsschalter Combined trip device for a circuit breaker
01/2004
01/15/2004DE10230085A1 Elektrischer Leistungsschalter mit einer eine Stromschleife aufweisenden Schaltkontaktanordnung The electrical circuit breaker with a current loop having switching contact arrangement
01/02/2004EP1376640A2 Electrical circuit breaker with a switch contact arrangement with a current loop
01/01/2004US20040001297 Electrical power breaker with a switching contact arrangement having a current loop
12/2003
12/31/2003CN2596540Y Push type overload protective switch capable of external identifying open and close state
12/16/2003US6665157 Apparatus for interrupting an electrical circuit
12/11/2003WO2003102991A1 Overvoltage protection device
10/2003
10/28/2003US6639168 Energy absorbing contact arm stop
10/21/2003US6636133 PTC terminals
10/08/2003CN2579033Y Plug
09/2003
09/30/2003US6628185 Blade assembly for a circuit breaker
09/24/2003EP1346385A1 Automatic current limiting circuit breaker
09/24/2003CN2575838Y Information electric device radiating apparatus
09/03/2003CN2570956Y Push type switch
08/2003
08/27/2003CN2569332Y High sensitivity swinging type overflow protective switch
08/13/2003EP1334504A1 Contact arrangement for current-limiting protective circuit breakers
08/13/2003EP1334503A1 Contact arrangement for current-limiting protective circuit breakers
08/06/2003CN2565142Y Linkage structure for safety switch
08/06/2003CN2565141Y Pressing type overload protection switch
07/2003
07/23/2003EP1328956A1 Current limiting low-voltage power circuit breaker
07/23/2003CN2562345Y Double safety switch structure
07/08/2003US6590172 Circuit breaker mechanism for a rotary contact system
06/2003
06/26/2003WO2003052784A1 Current-limiting low-voltage circuit breaker
06/25/2003CN1426081A Improvement of knife shape switch unit in circuit breaker
06/19/2003US20030112104 Pressure sensitive trip mechanism for a rotary breaker
06/18/2003CN2556782Y Overcurrent protective switch
06/18/2003CN1111888C Molded case circuit breaker and moving conductor assembly therefor
06/18/2003CN1111887C Circuit breaker with moulded casing
06/04/2003CN1421889A 正温度系数端子 Positive temperature coefficient terminal
06/04/2003CN1110830C Molded outer case circuit breaker
05/2003
05/15/2003WO2003041106A1 Low-voltage circuit breaker
05/15/2003WO2003041105A1 Low-voltage circuit breaker
05/02/2003EP0916151B1 Current-limiting circuit-breaker
04/2003
04/17/2003DE10144105C1 Schaltkontaktanordnung mit einer in Schließrichtung und in Öffnungsrichtung wirkenden Federkraft Switching contact arrangement with a force acting in the closing direction and in the direction of opening spring force
04/16/2003EP1302960A2 Contact arrangement for current limiting circuit breaker
04/16/2003CN2545698Y Switchable miniature overload protection switch
04/01/2003US6542057 Pressure sensitive trip mechanism for a rotary breaker
03/2003
03/20/2003US20030052762 PTC terminals
03/20/2003US20030052758 Blade assembly for a circuit breaker
03/19/2003EP1294005A1 Improvement in blade assembly for a circuit breaker
03/05/2003EP1288990A2 Switching contact arrangement with a spring force acting in the closing direction and in the opening direction
02/2003
02/20/2003WO2003015115A1 Current-limiting device with liquid metal
02/13/2003WO2003012812A1 Circuit breaker for low-voltage electric circuit
02/12/2003CN2535920Y Overcurrent protective switch
02/05/2003CN1395269A Safety switch of push-pressing type
01/2003
01/29/2003CN2533570Y Push switch
01/22/2003CN1392578A Safety protection switch for preventing over-current
01/02/2003US20030000814 Method and apparatus for limiting movement in electrical contactors
01/01/2003CN2529378Y Hand-reset type current overload protector
01/01/2003CN1388548A Release device of protective switch and protective switch system
01/01/2003CN1388546A Moulded box-type circuit breaker
12/2002
12/25/2002CN1387211A Solderless contact system for electromagnetic contactor
12/19/2002DE10150550C1 Contact device for current-limiting protection switch has electrodynamically-operated rotary contact bridge with coupled contact spring pairs preventing rebound
12/18/2002EP1266389A1 Combined tripping device for a circuit-breaker
12/17/2002CA2105918C Solid copper bus shunt through ground fault circuit breaker electronic
12/12/2002DE10124985A1 Auslösevorrichtung eines Schutzschalters und Schutzschaltersystem Release mechanism of a circuit breaker and circuit breaker system
12/05/2002DE10222668A1 Molded case circuit breaker has rotary contact shoe positioned diagonally between two parallel linear fixed contact shoes to form Z-shaped conducting path
12/03/2002US6489867 Separating pins for the shunt wires of a circuit breaker
11/2002
11/28/2002US20020175785 Molded case circuit breaker
11/27/2002EP1261009A2 Circuit breaker tripping device and circuit breaker system
11/27/2002EP1261008A1 Enclosed magnetothermal electric circuit breaker
11/27/2002CN2523013Y Switch with Protection circuit
11/12/2002US6480080 Molded case circuit breaker
11/12/2002US6479780 Circuit breaker for disconnecting an electrical apparatus from electrical network
11/06/2002CN2519996Y Short circuit proof press-button switch
10/2002
10/23/2002CN2518211Y Switch structure able to regulate resilience
10/17/2002DE10116894A1 Current limiting contact device for mechanically-operated electric switch, uses contact elements loosely packed together in housing with assisted contact pressure between them
10/09/2002CN1092392C Electromagnetic switching device
09/2002
09/25/2002CN1371525A Circuit breaker with two piece bell accessory lever with overtravel
09/24/2002US6456176 Circuit breaker
09/24/2002CA2257594C Electrical circuit breakers
09/19/2002US20020130744 Tripping device for a circuit breaker
09/18/2002EP1241699A1 Weld free contact system for electromagnetic contactors
09/17/2002US6452470 Circuit interrupter with improved operating mechanism securement
09/11/2002CN2510988Y Short-circuit-proof press-button switch
08/2002
08/28/2002CN1366698A Trip override for rotary breaker
08/21/2002CN2507129Y 自动保护电开关 Automatic Protection Switch
08/20/2002US6437960 Current limiting circuit breaker with positive temperature coefficient resistivity (PTC) element and insertable insulating object
08/20/2002US6437670 Magnetic release system for a circuit breaker
08/08/2002DE10137506C1 Schaltkontaktanordnung für einen elektrischen Schalter Switching contact arrangement for an electrical switch
08/08/2002DE10104646A1 Strombegrenzende Kontaktanordnung mit Schlitzmotor Current-limiting contact arrangement with slot motor
08/06/2002US6429759 Split and angled contacts
07/2002
07/31/2002CN1361917A Displaceable contact having low electrical resistance
07/18/2002US20020092829 Current limiting circuit breaker
07/11/2002WO2002054431A1 Automatic current limiting circuit breaker
07/10/2002EP0976138B1 Electromagnetic switching device
07/10/2002CN1087481C Apparatus and method for controlling electric motor
07/03/2002EP1218914A1 Molded case circuit breaker with current flow indicating handle mechanism
07/03/2002EP1218913A1 Circuit breaker with two piece bell accessory lever with overtravel
07/02/2002US6414256 Current limiting circuit breaker
06/2002
06/12/2002CN2495025Y Power-off reset overload protector
06/11/2002US6403909 Trip override for rotary breaker
06/06/2002DE10058419C1 Current-limiting switch has conductor loop provided with switching current providing electrodynamic forces assisting opening movement of contact device upon overload detection
06/05/2002EP1210719A1 Circuit interrupter with a trip mechanism having a biased latch
05/2002
05/29/2002EP1208576A2 Trip override for a rotary breaker
05/23/2002WO2002041347A1 Contact arrangement for current-limiting protective circuit breakers
05/23/2002WO2002041346A1 Contact arrangement for current-limiting protective circuit breakers
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