| Patents for H01H 83 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current (5,042) |
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| 06/02/1993 | CN2135194Y Under-voltage tripping relay for high-voltage electrical equipment |
| 05/26/1993 | CN2134736Y Electrical machinery protective knife-blade switch |
| 05/25/1993 | US5214405 Miniature circuit-breaker with remote tripping |
| 05/19/1993 | CN2133935Y Phase interruption protection ac contactor |
| 05/17/1993 | EP0598727A4 Protective snap-together enclosure for current transformers. |
| 05/05/1993 | EP0470215A4 A circuit breaker |
| 04/29/1993 | DE4235504A1 Electric power switch with additional switch functions - provided for alarm and ancillary purposes in the form of cassette modules locating in housing |
| 04/28/1993 | CN2131232Y Electronic dc current protection relay |
| 04/21/1993 | CN2130287Y Automatic protector for electric appliance |
| 04/14/1993 | EP0537084A1 Circuit breaker with selective locking |
| 04/13/1993 | US5202662 Resettable circuit breaker for use in ground fault circuit interrupters and the like |
| 03/31/1993 | EP0491933A4 Plug-in circuit breaker |
| 03/17/1993 | EP0531554A1 Transformer, for instance symmation transformer |
| 03/16/1993 | US5195009 Current summing arrangement for ground fault detection |
| 03/10/1993 | EP0530392A1 Ground fault circuit breaker |
| 03/09/1993 | US5193043 Multipole molded case circuit breaker |
| 02/10/1993 | EP0527001A1 Magnetic solenoid resettable ground fault circuit interrupter |
| 02/03/1993 | EP0526071A2 Switch mechanism |
| 02/03/1993 | EP0525691A2 Trip unit for circuit breakers and protective switches, in particular implemented as an under-voltage trip unit |
| 02/03/1993 | EP0296183B1 Circuit breaker contact assembly |
| 02/02/1993 | US5184271 Shock hazard protection system |
| 02/02/1993 | US5184101 Undervoltage tripping device |
| 01/20/1993 | EP0524087A1 Mechanical damping device for a magnetic core in a casing |
| 01/12/1993 | US5179491 Plug-in circuit breaker |
| 01/12/1993 | US5179364 Overload relay |
| 01/07/1993 | EP0521390A1 Means for setting the release parameter of a thermostatic bimetal relay |
| 12/30/1992 | CN2126463U Switch with electricity-leakage protection |
| 12/30/1992 | CN1067526A Thermal overload protection device for electronic components |
| 12/30/1992 | CN1019714B Contact relay open-phase pretector |
| 12/23/1992 | EP0519560A1 Differential switch |
| 12/23/1992 | CN1019619B Modular breaker of auxiliary interruper unit and many stage breaker connected |
| 12/22/1992 | US5173673 Magnetic solenoid resettable ground fault circuit interrupter |
| 12/15/1992 | US5172293 Circuit breaker with leakage current detecting functions |
| 12/09/1992 | EP0516922A2 Thermic overload protection device for electronic components |
| 12/06/1992 | CA2063771A1 Thermal overload protection device for electronic components |
| 11/24/1992 | US5166853 Shock hazard protection system |
| 11/19/1992 | EP0513423A1 Line protective circuit breaker with remote shunt-trip device |
| 11/18/1992 | CN2122436U 30-250 voltage all range quick automatic leakagce protector |
| 11/17/1992 | CA1310353C Molded case circuit breaker actuator-accessory unit |
| 11/10/1992 | CA1310046C Circuit breaker contact assembly |
| 10/28/1992 | CN2120385U Air switch with break and open-phase protection |
| 10/21/1992 | EP0509936A2 Homopolar transformer with magnetic circuit insensitive to mechanical stresses, and manufacturing method |
| 10/21/1992 | EP0509391A1 Protection system for electric circuits |
| 10/15/1992 | DE4111236A1 Sum current transducer for fault current protection switch - has secondary winding contained in insulating pot with central cylinder receiving primary |
| 10/14/1992 | CN1018685B Magnetic trip device with knife-blade articulation |
| 10/07/1992 | EP0507148A2 Switch mechanism for low tension switch gears |
| 10/06/1992 | US5153551 Manual control device for a thermal relay |
| 10/06/1992 | US5153544 Molded case circuit breaker field-installable accessories |
| 09/30/1992 | EP0506303A2 Dual wound trip solenoid |
| 09/30/1992 | EP0236422B1 Remote control circuit breaker |
| 09/28/1992 | CA2064170A1 Dual wound trip solenoid |
| 09/24/1992 | DE4208716A1 Safety switch for coupling to operating or driven module - has trigger mechanism released by pin from either master or slave module to move from locked position to one of two release positions |
| 09/23/1992 | EP0504162A1 Circuit breaker and auxiliary device therefor |
| 09/23/1992 | CN2116981U Electronic leakage current protective switch against interference |
| 09/23/1992 | CN2116980U Electronic protective apparatus with four potentials |
| 09/23/1992 | CN2116961U Air switch for protection of triphase open phase and leakage |
| 09/22/1992 | US5150092 Control button adaptor for electric control apparatus |
| 09/16/1992 | WO1992017044A1 Protective snap-together enclosure for current transformers |
| 09/16/1992 | CN2116276U Circuit breaker with time controlling and load limiting |
| 09/16/1992 | CA2082399A1 Protective snap-together enclosure for current transformers |
| 09/15/1992 | US5148344 Electrical connector for small appliances |
| 09/03/1992 | WO1992015110A1 Protective switchgear tripped by differential current or undervoltage |
| 08/18/1992 | US5140293 Manual control device for thermal relays |
| 08/12/1992 | CN2112888U Antomatic on/off switch according to power on/off |
| 08/05/1992 | CN2112199U Non-noise depressing db trip apparatus |
| 08/04/1992 | US5136454 Arrangement for providing ground fault protection |
| 08/04/1992 | CA1305990C Molded case circuit breaker actuator-accessory module |
| 07/15/1992 | CN2110287U Three-phase electrical machinery loss-phase protector |
| 07/08/1992 | EP0493486A1 Energy management accessory for circuit breaker. |
| 07/01/1992 | EP0491933A1 Plug-in circuit breaker. |
| 07/01/1992 | CN2108992U Domestic electric protector for preventing excess voltage, overcurrent |
| 06/24/1992 | CN2108360U Electromagnetic loss-of-phase protector for motor |
| 06/23/1992 | CA1304112C Molded case circuit breaker actuator-accessory module |
| 05/27/1992 | CN2105762U Electric leakage protective unit |
| 05/26/1992 | US5117210 Molded case circuit breaker field-installable accessories |
| 05/05/1992 | US5110378 Metallic glasses having a combination of high permeability, low coercivity, low ac core loss, low exciting power and high thermal stability |
| 04/28/1992 | US5109210 Thermal relay with remote controlled resetting and testing junctions |
| 04/28/1992 | CA1299691C Electrical receptacle assembly |
| 04/16/1992 | DE4133475A1 Thermic differential trigger for motor protection switch - uses bimetallic elements each contactedby ends of two inserts embedded in relatively sliding insulating rails |
| 04/05/1992 | WO1992006484A1 Circuit breaker and auxiliary device therefor |
| 04/02/1992 | WO1992005569A1 Earth leakage trip indicator |
| 03/31/1992 | US5101186 Circuit breaker utilizing deformable section blade |
| 03/24/1992 | CA1297932C Ground fault current protective device |
| 03/10/1992 | US5095398 Multi pole |
| 03/04/1992 | EP0473246A1 Improvements in or relating to electrical control apparatus |
| 03/04/1992 | CN2098088U Magnetic isolating leaks circuit breaker |
| 03/03/1992 | US5093643 Undervoltage release device assembly for circuit breaker |
| 02/25/1992 | US5091711 Current transformer mounting mechanism for circuit breaker |
| 02/18/1992 | US5089796 Earth leakage trip indicator |
| 02/12/1992 | EP0470215A1 A circuit breaker. |
| 02/11/1992 | CA1295629C Protected electric switch with attaching means |
| 02/05/1992 | EP0469208A2 Overload relay |
| 01/29/1992 | CN1058301A 可编程序的反时限延迟电路 Inverse programmable delay circuit |
| 01/22/1992 | EP0467675A2 Programmable inverse time delay circuit |
| 01/21/1992 | US5083103 Energy management accessory for circuit breaker |
| 01/20/1992 | WO1992002065A1 Plug-in circuit breaker |
| 01/19/1992 | CA2046077A1 Programmable inverse time delay circuit |
| 01/15/1992 | EP0465803A2 Current transformer mounting mechanism for circuit breaker |
| 01/02/1992 | EP0463898A1 Manual control device for thermal relay |
| 12/31/1991 | US5077626 Phase-failure detectors responsive to unequal bending of bi-metal members |