| Patents for H01H 47 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current (7,312) |
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| 07/19/2001 | US20010008541 Method of determining contact wear in a trip unit |
| 07/17/2001 | US6262871 Fail safe fault interrupter |
| 07/11/2001 | CN2439101Y Moving arc AC contactor |
| 07/05/2001 | WO2001048776A1 Method for providing current by means of an inductive component |
| 07/05/2001 | WO2001048775A1 Device for controlling an electric switchgear and related method |
| 07/05/2001 | WO2001048372A1 Method and device for powering a motor vehicle electric starting switch with determinable behaviour |
| 07/05/2001 | DE10003531A1 Load switching involves holding switching voltage constant until switch-off time if load current falls or remains constant during first time interval, reducing if load current increases |
| 07/05/2001 | CA2395508A1 Device for controlling an electric switchgear and related method |
| 07/04/2001 | EP1113558A2 Relay with overcurrent protection |
| 07/04/2001 | CN2438269Y Multi-stage switch protection circuit of mixer |
| 07/03/2001 | US6256185 Low voltage direct control universal pulse width modulation module |
| 07/03/2001 | CA2202937C Pulse width modulated drive for an infinitely variable solenoid operated brake cylinder pressure control valve |
| 06/28/2001 | DE19963154A1 Method to supply current through inductive component, for control device in vehicle, e.g. fuel injection device, involves supplying current with larger constant voltage at beginning of flow phase |
| 06/27/2001 | EP1111639A1 Device for controlling the opening/closing operation of an electric switchgear and method related |
| 06/27/2001 | EP0952507B1 Current control apparatus |
| 06/27/2001 | CN1301342A Handheld sensing apparatus |
| 06/21/2001 | DE19955632A1 Sicherheitsschaltung Safety circuit |
| 06/20/2001 | EP1109178A2 Method for switching an inductive load |
| 06/20/2001 | EP1109177A2 Method for switching a load |
| 06/20/2001 | CN2435833Y AC contactor dc operatioin energy-saving device |
| 06/20/2001 | CN2435832Y AC contactor dc operation residual magnetism eliminating device |
| 06/19/2001 | US6249418 System for control of an electromagnetic actuator |
| 06/12/2001 | US6246564 Activating device |
| 06/12/2001 | US6246562 Control device of an electromagnet, with a power supply circuit supplied by the holding current of the electromagnet |
| 06/12/2001 | US6246318 Modular safety switching |
| 06/07/2001 | WO2001041174A1 Electromagnetic switchgear comprising a controlled drive, a corresponding method and a circuit |
| 06/07/2001 | DE19948552A1 Aktoreinheit mit einem Grundaktor, einem Zusatzaktor und einer sicheren Ansteuereinheit Actuator unit with a base actuator, an additional actuator and a safe driving unit |
| 06/06/2001 | CN2433728Y Relay constituting of regulating connecting pressure gap |
| 06/05/2001 | US6242938 Electrical circuit to detect load current |
| 05/31/2001 | WO2001039229A1 Configuration comprising two contactors connected in series |
| 05/31/2001 | WO2001039228A1 Electromagnetic switching device |
| 05/31/2001 | US20010002101 Apparatus for safely disconnecting an electrical load from an electrical DC voltage supply |
| 05/31/2001 | DE19944462C1 Elektromagnetisches Schaltgerät Electromagnetic switching device |
| 05/30/2001 | CN2432674Y Contactless AC contactor unit |
| 05/25/2001 | WO2001037302A1 Safety switch device for switching on and safely switching off an electrical user, in particular an electrically driven machine |
| 05/23/2001 | EP1102378A2 Safety circuit |
| 05/23/2001 | EP0832496B1 Switching equipment |
| 05/23/2001 | DE19948632A1 Aktoreinheit mit einem Grundaktor, einem Zusatzaktor und einer Ansteuereinheit Actuator unit with a base actuator, an additional actuator and a control unit |
| 05/22/2001 | US6236553 Safety relay |
| 05/22/2001 | US6236552 Relay drive circuit |
| 05/17/2001 | WO2001035432A1 Fail-safe, fault-tolerant switching system for a critical device |
| 05/17/2001 | DE19956127A1 Schaltungsanordnung zum Betrieb eines Arbeitsmagneten Circuit arrangement for operating a working magnet |
| 05/17/2001 | DE10000799C1 Safety cut-out switch for protection device has circuit providing signal level indicating state of latter provided with test input supplied with trigger signal |
| 05/17/2001 | CA2391472A1 Fail-safe, fault-tolerant switching system for a critical device |
| 05/16/2001 | EP1100103A2 Circuit arrangement for operating an electromagnet |
| 05/16/2001 | EP1100102A2 Electromagnetic relay |
| 05/16/2001 | EP1100101A2 DC motor drive circuit |
| 05/16/2001 | EP1099519A2 Safety device for a robot comprising an emergency stop circuit |
| 05/16/2001 | CN2430780Y Improved structure of relay |
| 05/15/2001 | US6233132 Zero cross relay actuation method and system implementing same |
| 05/15/2001 | US6233131 Electromagnetic operator for an electrical contactor and method for controlling same |
| 05/15/2001 | US6232675 Power distribution apparatus comprising relay devices for controlling current flow along power paths of the power distribution apparatus |
| 05/15/2001 | US6231227 Method of determining contact wear in a trip unit |
| 05/15/2001 | CA2053540C Inductive load switch utilizing simplified gating |
| 05/09/2001 | CN2429909Y Magnetic recorded A.C. contactor |
| 05/09/2001 | CN2429908Y A.C. contactor with cutoff maintaining |
| 05/09/2001 | CN2429907Y Pulse relay |
| 05/09/2001 | CN2429906Y High performance energy saving A.C. contactor |
| 05/03/2001 | WO2001031664A1 Optically controlled mem switches |
| 05/02/2001 | CN2428857Y DC. current electromagnetic contactor |
| 05/02/2001 | CN2428856Y Novel contactor |
| 05/02/2001 | CN1065352C Method of establishing the residual useful life of contacts in switchgear and associated arrangement |
| 05/01/2001 | US6225807 Method of establishing the residual useful life of contacts in switchgear and associated arrangement |
| 04/25/2001 | CN2427885Y DC insulation supervisory relay |
| 04/25/2001 | CN1292562A Quick-reaction mechanical switching point |
| 04/19/2001 | WO2001027956A1 Actuator unit with a base actuator, an additional actuator and a secure control unit |
| 04/19/2001 | WO2001027955A1 Actuator unit with a base actuator, an additional actuator and a control unit |
| 04/19/2001 | WO2001027954A1 Actuator unit with at least two actuators and a secure control unit |
| 04/19/2001 | DE19960399A1 Electromechanical switchgear for safety relay module, comprises optical sensor for monitoring switching mode of mechanical switching contact(s) |
| 04/18/2001 | CN2427012Y Energy-saving protector for AC contactor |
| 04/04/2001 | EP1088318A2 Device for safely disconnecting an electrical load with especially high inductivity from an electrical dc-voltage supply |
| 04/03/2001 | US6211580 Twin configuration for increased life time in touch mode electrostatic actuators |
| 03/29/2001 | WO2001022461A1 A pulse driving source circuit |
| 03/28/2001 | CN1289138A Pulse driving source circuit |
| 03/27/2001 | US6208498 Driving method and driving apparatus of a solenoid and solenoid driving control apparatus |
| 03/22/2001 | WO2001020632A1 Electromagnetic switchgear |
| 03/22/2001 | WO2001020630A1 Control system for an electromagnetic switching device and electromagnetic switching device corresponding thereto |
| 03/22/2001 | WO2000067270A8 Power supply systems and methods that can enable an electromagnetic device to ride-through variations in a supply voltage |
| 03/22/2001 | DE19944831A1 Verfahren und Vorrichtung zur Steuerung eines Verbrauchers Method and device for controlling a consumer |
| 03/21/2001 | EP1085548A2 Method and device for controlling a consumer |
| 03/21/2001 | CN1063574C Contactor safety combination |
| 03/15/2001 | DE19939650A1 Schaltungsanordnung zum Betrieb eines Relais Circuit arrangement for operating a relay |
| 03/15/2001 | DE10038654A1 Vehicle combustion engine electromagnetic fuel injection supply device drive arrangement, has switching device connected in series with electromagnetic unit for supplying conduction current to drive electric magnetic device at switch-on |
| 03/14/2001 | EP1083584A1 Improved switching system |
| 03/14/2001 | CN1287702A Device for safely disconnecting an electrical load with especially high inductivity from an electrical DC-voltage supply |
| 03/08/2001 | DE10036698A1 Digital protective relay for fault isolation, derives time code indicating instant at which relay operates |
| 03/07/2001 | EP1081431A2 Control device for thermal installations |
| 03/06/2001 | US6198614 Electrical contactor and method for controlling same |
| 03/01/2001 | DE19941022A1 Steuergerät für wärmetechnische Anlagen Control unit for thermo-technical systems |
| 03/01/2001 | DE10041958A1 Control circuit for electromagnetic valve adds derived current to voltage-current converter output when rectangular pulse current is switched off |
| 02/28/2001 | CN2421749Y Arcing preventing device for power supply connector |
| 02/22/2001 | WO2001013396A1 Circuitry for an electromagnetic switchgear |
| 02/22/2001 | WO2001013395A1 Circuit arrangement for operating a relay |
| 02/20/2001 | US6191929 Control device for an internal combustion engine |
| 02/14/2001 | CN2419678Y Silencing electric power saver |
| 02/13/2001 | US6188562 Process and apparatus for drop-off recognition in a magnetically operated device |
| 02/08/2001 | WO2001009910A1 Timed tripping circuit for an electromechanical switching device |
| 02/07/2001 | CN2418583Y Energy-economizer for ac contactor |
| 02/07/2001 | CN1282995A Digital protective relay |
| 02/01/2001 | WO2001008307A1 Electronic drive control mechanism |