Patents
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)
09/1996
09/03/1996US5552646 Pressure control device
08/1996
08/28/1996CN2234130Y Plug type electricity leakage protector
08/21/1996EP0727091A1 Overvoltage protection device
08/13/1996US5546265 Digital circuit interrupter shunt trip control circuit
08/13/1996US5546263 For interrupting the flow of current to an electrical device
08/06/1996CA2051564C Junction box with protection function to protect from overvoltage and overcurrent
07/1996
07/31/1996CN2232160Y Open-phase protector for three-phase power supply
07/31/1996CN1127929A Defferential switch associated to one or more circuit protection elements such as fuse cut-guts or circuit breakers
07/30/1996US5541800 Reverse wiring indicator for GFCI receptacles
07/23/1996US5539605 Digital circuit interrupter undervoltage release accessory
07/17/1996CN2231450Y Phase interruption protective device for circuit breaker
07/10/1996EP0720772A1 Power switch with an arc quenching device
07/04/1996WO1996020525A1 Electrical circuit breaker
06/1996
06/25/1996US5530414 Switching accessory for use with motor starters
06/19/1996CN2229720Y Electric leakage protection plug
06/19/1996CN1124874A Integrated protector for program-controlled high-voltage switch
06/13/1996DE4443520A1 Fault-current circuit breaker
06/12/1996CN1032037C Fault current protective switch in modular design
06/05/1996EP0715327A1 Device against calibration reduction after adaption of an auxiliary
05/1996
05/30/1996WO1996016424A1 A fuse arrangement
05/29/1996CN1123458A Leakage-responsive circuit breaker
05/23/1996WO1996015460A1 Current transducers
05/23/1996CA2207037A1 Current transducers
05/22/1996CN1122949A Differential protection unit with passage for cables
05/21/1996US5519368 Compact coil assembly for transient voltage protection
05/14/1996US5517165 Switch mechanism
05/14/1996US5517104 Lead wire DC current sensor with saturated detecting core
05/02/1996CA2137945A1 Compact control and monitoring switch
05/01/1996CN1031737C Test key arrangement for an earth-leakage current circuit-breaker or differential-current circuit-breaker
04/1996
04/30/1996US5512720 Auxiliary trip device for a circuit breaker
04/24/1996EP0525137B1 Protective switchgear tripped by differential current or undervoltage
04/24/1996EP0491933B1 Plug-in circuit breaker
04/24/1996CN1031674C Single-pole plus neutral circuit breaker with test circuit
04/23/1996US5510760 Ground fault interrupter wiring device with improved latching and actuating components
04/23/1996US5510759 Miniature circuit breaker with ground fault electronics supported by stiff conductors for easy assembly
04/23/1996US5510658 Circuit breaker device for electric vehicle
04/17/1996EP0706712A1 Ground fault module conductors and base therefor
04/03/1996EP0704874A1 Differential circuit breaker associated with one or more circuit protection elements such as fuse units or circuit breakers
04/03/1996CN2223866Y Four-in-one type phase-lost protective switch for motor
04/03/1996CN2223865Y Phase-lost protective device for electric motor
03/1996
03/28/1996WO1996009639A1 Differential current protective switch with special core material
03/21/1996DE4432643A1 Contact arrangement for fault-current (FI) circuit breaker for e.g. refrigerators or freezers
03/20/1996EP0702387A1 Multipole circuit breaker with reduced operating temperature
03/20/1996CN1118929A Method and apparatus for detecting state of electromechanial protective switch
03/17/1996CA2158415A1 Multipole circuit breaker with reduced operating temperature
03/13/1996CN2222410Y Phase-lose protector for electric motor
03/06/1996CN1118108A Circuit breaker
02/1996
02/29/1996DE4429950A1 Semi automatic test facility for leakage current detection
02/20/1996US5493265 Wire securing block
02/08/1996WO1996003760A1 Current imbalance sensor
02/08/1996WO1996003759A1 Module for use with a miniature circuit breaker
02/07/1996EP0696041A1 Cut out
01/1996
01/30/1996US5488303 Ground fault interrupter
01/18/1996WO1996001489A1 Operation of residual current devices
01/18/1996WO1996001488A1 Electrically controlled tripping mechanism
01/18/1996WO1996001487A1 Detent mechanism
01/18/1996WO1996001484A1 Electrically controlled tripping mechanism
01/16/1996US5485339 Safety electrical assembly for electric power equipment
01/16/1996US5485133 Circuit breaker
01/10/1996EP0691665A1 Main cut-out
01/10/1996EP0691662A1 Differential transformer for electronic protection device
01/09/1996US5483212 Overload relay to be combined with contactors
01/04/1996DE4421150C1 Auxiliary release device fixing system for LV power switch
01/03/1996EP0690537A1 Contactor with latching means for rail mounting
01/03/1996EP0690466A1 Pyrotechnic excess current protection element
01/02/1996US5481235 Conducting spring for a circuit interrupter test circuit
12/1995
12/27/1995EP0689271A1 An earth leakage unit
12/21/1995DE4420765A1 Board fastener to secure power circuit-breaker or earth-fault short-circuit current switch mechanism in housing
12/20/1995EP0688034A1 Test button device
12/19/1995US5477201 Single solenoid actuator for two pole ground fault circuit interrupter
12/13/1995CN2215154Y Safety motor starter
12/06/1995EP0685867A1 Differential release device
12/06/1995EP0685866A1 Monitoring process and device for sensing the condition of electromechanical circuit breakers
11/1995
11/30/1995WO1995032536A1 Digital circuit interrupter undervoltage release accessory
11/23/1995DE4417897A1 Totalising current transformer modules assembly method
11/23/1995DE19517714A1 Electronic trip-release unit
11/22/1995CN2213377Y Open-phase protective relay
11/15/1995CN1111805A Differential trip unit
11/15/1995CN1111753A DC current sensor
11/09/1995WO1995030234A1 Ground fault module conductors and base therefor
10/1995
10/19/1995DE4413418A1 Safety switch with line protection stage and fault current unit
10/18/1995CN2210468Y Safety switch for electric motor
10/17/1995US5459630 Self testing circuit breaker ground fault and sputtering arc trip unit
10/17/1995US5459444 Circuit breaker for use in wall mounted plug
10/12/1995WO1995027301A1 Conducting spring for a circuit interrupter test circuit
10/10/1995US5457444 Switching mechanism
10/10/1995US5457365 Disk drive power management system
10/04/1995CN2209400Y Electromagnetic motor protector
10/04/1995CN2209383Y Indication alarm type surge absorber
09/1995
09/27/1995EP0674333A2 Earth leakage circuit breaker
09/27/1995EP0470215B1 A circuit breaker
09/27/1995CN2208740Y Multi-function automatically protecting three-phase knife switch
08/1995
08/29/1995US5446431 Ground fault module conductors and base therefor
08/16/1995CN1106957A Self-testing circuit breaker ground fault and sputtering arc trip unit
08/15/1995US5442151 Button well compression seal assembly
08/09/1995CN2205057Y Separate leakage circuit breaker
08/02/1995EP0665623A1 Test device for differential circuit breaker and differential circuit breaker containing the same
08/02/1995EP0665569A1 Diffential trip unit
07/1995
07/20/1995WO1995019630A1 A compact coil assembly for transient voltage protection
07/13/1995DE4424125C1 Automatic main protection fuse for distribution network
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