ClassID:

216674

H02H3/044 - CPC Classification

Classification description:

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection; Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned Checking correct functioning of protective arrangements, e.g. by simulating a fault

Recent Application in this class:
#1
20260142113
2026-05-21

Bi-Directional Solid-State DC Circuit Breaker with Breaking Speed Control

#2
20260045782
2026-02-12

CIRCUIT BREAKERS IN POWER TRANSMISSION NETWORKS

#3
20260011999
2026-01-08

VEHICLE CUTOFF DEVICE

#4
20250309631
2025-10-02

POWER CORD PHOTOCOUPLER LEAKAGE CURRENT DETECTION INTERRUPTER (LCDI) AND ELECTRICAL APPLIANCE USING SAME

#5
20250174976
2025-05-29

SMART POWER SEMICONDUCTOR SWITCH DEVICE WITH SELF-DIAGNOSTIC FUNCTION AND METHOD THEREOF

#6
20250104954
2025-03-27

SOLID-STATE CIRCUIT BREAKER AND ITS SELF-TEST METHOD

#7
20250054719
2025-02-13

Fuse Component With Electronic Circuit Breaker and Fuse Wire

#8
20240421583
2024-12-19

LEAKAGE CURRENT PROTECTION DEVICE INTEGRATING LOAD-END FUNCTIONS

#9
20240418767
2024-12-19

SELF-TEST AUTO MONITOR GROUND FAULT CIRCUIT INTERRUPTER (GFCI) WITH POWER DENIAL

#10
20240387120
2024-11-21

CIRCUIT BREAKER

#11
20240297492
2024-09-05

SEMICONDUCTOR FUSE WITH DETECTION CIRCUIT FOR THE DETECTION OF A DRIFT OF THE GATE THRESHOLD VOLTAGE

#12
20240266131
2024-08-08

PROTECTIVE WIRING DEVICE

#13
20240177958
2024-05-30

Circuit breaker with advanced health diagnostics

#14
20230408575
2023-12-21

Self-test auto monitor ground fault circuit interrupter (GFCI) with power denial

#15
20230275419
2023-08-31

Ground fault circuit interrupter using frequency recognition and measurement

#16
20230123922
2023-04-20

Program burning device and current-protection detection method thereof

#17
20230121422
2023-04-20

Troubleshooting system and method for current sensors

#18
20230117130
2023-04-20

Motor inverter

#19
20230115038
2023-04-13

Intelligent terminal for preventing mal-operation of power equipment

#20
20220413049
2022-12-29

Sensing a Switching State of an Electromechanical Switching Element

#21
20220294204
2022-09-15

Processor-based circuit interrupting devices

#22
20220276287
2022-09-01

Method for Controlling Access to an Electrical Enclosure

#23
20220131362
2022-04-28

Ground fault circuit interrupter using frequency recognition and measurement

#24
20220131361
2022-04-28

Surge protection device with protection level determination and methods of operating the same

#25
20220102959
2022-03-31

Testing device, overcurrent protector, and method of testing an overcurrent protector

#26
20220085593
2022-03-17

Arc fault circuit interrupter (AFCI) with arc signature detection

#27
20220037882
2022-02-03

Motor vehicle control unit with redundant power supply, and corresponding motor vehicle

#28
20210344186
2021-11-04

Actuating apparatus for triggering at least one pyrofuse, and energy storage device comprising a pyrofuse of this kind

#29
20210325462
2021-10-21

POWER DISTRIBUTION SYSTEMS AND METHODS OF TESTING RESPONSES TO ELECTRICAL CONDITIONS USING A COMMUNICATION NETWORK

#30
20210278477
2021-09-09

Self-test auto monitor ground fault circuit interrupter (GFCI) with power denial

#31
20210075211
2021-03-11

Relay-type leakage current protection device

#32
20210036502
2021-02-04

Dual coil armature for supervision relay of trip coil

#33
20210035760
2021-02-04

Protective wiring device

#34
20200350758
2020-11-05

Ground fault circuit interrupter

#35
20200259327
2020-08-13

Polarity-reversal protection arrangement, method for operating the polarity-reversal-protection arrangement and corresponding use

#36
20200235572
2020-07-23

Surge protection device

#37
20200200812
2020-06-25

Current monitor with fault detection

#38
20200162070
2020-05-21

Robust safe switch

#39
20200161849
2020-05-21

Ground fault circuit interrupter using frequency recognition and measurement

#40
20200112168
2020-04-09

Surge protection circuit

#41
20200044434
2020-02-06

Arc fault circuit interrupter (AFCI) with arc signature detection

#42
20200028347
2020-01-23

Self-test auto monitor ground fault circuit interrupter (GFCI) with power denial

#43
20190386479
2019-12-19

Point of use protective wiring device

#44
20190363531
2019-11-28

Processor-based circuit interrupting devices

#45
20190356127
2019-11-21

Arc fault circuit interrupter

#46
20190195949
2019-06-27

Test apparatus and methods for arc mitigation device

#47
20190190247
2019-06-20

Differential protection test method, differential protection device and electrical unit including such a device

#48
20190148097
2019-05-16

Apparatus, system and method for alarm triggered electrical supply disconnection

#49
20190140438
2019-05-09

Fuse system for at least one load of a vehicle

#50
20190128971
2019-05-02

Modification of test measurement signals for protective devices for electric power networks

#51
20190109451
2019-04-11

Circuit breaker failure protection relay and protection relay system

#52
20190097412
2019-03-28

Leakage current detection and protection device for power cord

#53
20190074683
2019-03-07

Electrically-driven working apparatus and method for protecting battery of electrically-driven working apparatus

#54
20190074681
2019-03-07

Electrical power systems

#55
20190052076
2019-02-14

Digital line protection with supply voltage drop safety

#56
20190049516
2019-02-14

Testing device and method for testing a control unit of a switching device of a switchgear installation

#57
20190041461
2019-02-07

Method of identifying a mechanical trip in an electronic miniature circuit breaker

#58
20190036329
2019-01-31

Circuit breaker failure protection in a power substation

#59
20180367045
2018-12-20

Sense resistor fault detection

#60
20180366941
2018-12-20

Elimination of secondary fuses in high power solid state power controllers

#61
20180366935
2018-12-20

Low voltage protection device with clock testing

#62
20180358798
2018-12-13

Vehicle control device

#63
20180351376
2018-12-06

Method for preventing electric shock and electronic device for the same

#64
20180337553
2018-11-22

Adapter

#65
20180301887
2018-10-18

Electronic protection device

#66
20180284193
2018-10-04

Device and method for testing the switching state of a circuit breaker device

#67
20180278041
2018-09-27

Protective relay device

#68
20180278040
2018-09-27

Ground fault protection system

#69
20180267103
2018-09-20

Method for determining the operating status of a MV switching apparatus of the electromagnetic type

#70
20180254624
2018-09-06

Apparatus for detecting fault of power relay of inverter

#71
20180240628
2018-08-23

Or relating to digital output circuits

#72
20180238966
2018-08-23

Power distribution systems and methods of testing responses to electrical conditions using a communication network

#73
20180224488
2018-08-09

Residual current detecting (RCD) and ground impedance monitoring transformer and control methods

#74
20180212417
2018-07-26

Auto-monitoring circuit and circuit interrupter including the same

#75
20180149682
2018-05-31

Method and testing device for testing wiring of transformers

#76
20180131174
2018-05-10

Apparatus and methods for monitoring and responding to power supply and/or detection circuit failures within an electronic circuit breaker

#77
20180120825
2018-05-03

Protection monitoring system with fault indicators

#78
20180088656
2018-03-29

Electrical power control and fault protection

#79
20180076610
2018-03-15

Device and method for monitoring the activity of processing units in an electric trip switch

#80
20180062382
2018-03-01

Switch operating characteristic monitoring device, switch equipped with same, and switch operating characteristic monitoring method

#81
20180048137
2018-02-15

Arc fault detection arrangement for a DC electric bus

#82
20180045783
2018-02-15

Solid state circuit breaker and motor driving system

#83
20180034458
2018-02-01

Power supply device

#84
20180033567
2018-02-01

Control system for an electrical switching apparatus and related electrical switching apparatus

#85
20180019584
2018-01-18

Leakage current detection and protection device

#86
20170373681
2017-12-28

Robust safe switch

#87
20170365991
2017-12-21

Electrical junction box

#88
20170350927
2017-12-07

Residual current detecting (RCD) and ground impedance monitoring transformer and control methods

#89
20170294773
2017-10-12

Electronic switching and protection circuit with test mode function

#90
20170222424
2017-08-03

Electric leakage protection device and feed control device

#91
20170201088
2017-07-13

Surge voltage protection apparatus

#92
20170184343
2017-06-29

Systems and methods for testing electrical connectors

#93
20170155244
2017-06-01

Transient voltage suppressor having built-in-test capability for solid state power controllers

#94
20170155240
2017-06-01

Self-testing auto monitor ground fault circuit interrupter (GFCI) with power denial

#95
20170141562
2017-05-18

Circuits and techniques for signaling between devices

#96
20170141559
2017-05-18

Method and protection device for monitoring circuit breaker in an electrical power supply network

#97
20170117699
2017-04-27

Arc fault circuit interrupter

#98
20170032654
2017-02-02

Power failure monitoring device of digital protection relay

#99
20170025892
2017-01-26

Smart power node

#100
20170016959
2017-01-19

Monitoring system for detecting occurrence of leakage current and/or relay short-circuit condition in an electrical system

#101
20160365718
2016-12-15

Device for detecting a fault in an AC supply

#102
20160363627
2016-12-15

Self-testing ground fault circuit interrupter and associated method

#103
20160325777
2016-11-10

Motor control device, electric power steering device using same, and vehicle

#104
20160322804
2016-11-03

Protection device for electrical network

#105
20160293372
2016-10-06

Circuit interrupter with wireless unit, communication system including the same and associated method

#106
20160274190
2016-09-22

Self-test module of electronic circuit breaker

#107
20160254661
2016-09-01

Vehicle

#108
20160225564
2016-08-04

Electrical storage system

#109
20160209450
2016-07-21

Testing of a substation automation system

#110
20160187408
2016-06-30

Arc fault detection system and method and circuit interrupter employing same

#111
20160169981
2016-06-16

Leakage current detection device with self-testing function

#112
20160156206
2016-06-02

Battery pack

#113
20160141862
2016-05-19

Apparatus and methods for monitoring and responding to power supply and/or detection circuit failures within an electronic circuit breaker

#114
20160141129
2016-05-19

Residual current circuit breaker

#115
20160061896
2016-03-03

Power-supply control device and programmable logic controller

#116
20160006234
2016-01-07

Processor-based circuit interrupting devices

#117
20160003921
2016-01-07

Method for testing multiple spatially distributed protective devices of an energy supply network, and corresponding testing system

#118
20150369854
2015-12-24

Circuit and method for detecting short circuit failure of a switching transistor

#119
20150369846
2015-12-24

Processor device for processing signals in an electrical installation

#120
20150244160
2015-08-27

Arc flash protection system with self-test

#121
20150200535
2015-07-16

Electrically-driven working apparatus and method for protecting battery of electrically-driven working apparatus

#122
20150155698
2015-06-04

Arc fault circuit interrupter

#123
20150116877
2015-04-30

Power distribution systems and methods of testing a power distribution system

#124
20150062766
2015-03-05

Method for detecting a defective amplifier in an analog signal conditioning device of a switch

#125
20150009037
2015-01-08

CIRCUIT BREAKER INDICATION DEVICE

#126
20150008935
2015-01-08

Protection apparatus and method of verifying operation thereof

#127
20140361780
2014-12-11

Systems and methods for monitoring circuit breaker operation

#128
20140347768
2014-11-27

Self-testing auto monitor ground fault circuit interrupter (GFCI) with power denial

#129
20140306716
2014-10-16

Methods for detecting an open current transformer

#130
20140236319
2014-08-21

Protection monitoring system with fault indicators

#131
20140226248
2014-08-14

Apparatus, systems, and methods for operation of a trip unit in a circuit protection device

#132
20140218044
2014-08-07

Arc fault circuit interrupter

#133
20140210484
2014-07-31

Method for determining a circuit element parameter

#134
20140184232
2014-07-03

Tester for lightning arresters counter

#135
20140160603
2014-06-12

Circuit interrupter including supervisory function for protective function and hardware circuit repetitive test function

#136
20140092513
2014-04-03

Overvoltage protector

#137
20140092503
2014-04-03

Processor-based circuit interrupting devices

#138
20130215545
2013-08-22

Electric switch

#139
20130214806
2013-08-22

Self-test of over-current fault detection

#140
20130214805
2013-08-22

Self-test of over-current fault detection

#141
20130106423
2013-05-02

MAIN RELAY MONITORING DEVICE AND METHOD FOR GREEN VEHICLE

#142
20130100569
2013-04-25

Electronic overcurrent release for circuit breakers

#143
20120312977
2012-12-13

Arc flash protection system with self-test

#144
20120299601
2012-11-29

Method of testing a spur short circuit protection system and diagnostic device for performing the method

#145
20120299599
2012-11-29

ELECTRIC LEAKAGE SENSING APPARATUS

#146
20120257315
2012-10-11

Arrangement for ground-fault detection in an AC circuit and power supply arrangement with ground-fault detection

#147
20120250193
2012-10-04

Reset lockout with grounded neutral test

#148
20120229939
2012-09-13

Methods, systems, and apparatus and for detecting parallel electrical arc faults

#149
20120212231
2012-08-23

Switching device

#150
20120169348
2012-07-05

Methods and systems involving monitoring circuit connectivity

#151
20120150492
2012-06-14

Method and device for monitoring a device equipped with a microprocessor

#152
20120099233
2012-04-26

Method and device for supervising the sensitivity of a protection function

#153
20120053743
2012-03-01

Redundant systems, methods, and apparatus for use in arc flash prevention systems

#154
20120014032
2012-01-19

Trip circuit supervision relay for low and medium voltage applications

#155
20120014018
2012-01-19

Power and control unit for a low or medium voltage apparatus

#156
20120007621
2012-01-12

Circuit interrupter device with self-test function

#157
20110267730
2011-11-03

Overvoltage protector

#158
20110194217
2011-08-11

Power supplies with testable current limiters, and methods of operating same

#159
20110128005
2011-06-02

Sluggish circuit breaker detection system and method

#160
20110102957
2011-05-05

Protection Device

#161
20110093234
2011-04-21

Method and apparatus for detecting failure of an actuator switching device

#162
20110031978
2011-02-10

Apparatus and method for recognizing an error in a power bridge circuit

#163
20100324747
2010-12-23

Composite type electric circuit breaker and method thereof

#164
20100284114
2010-11-11

System and method to provide transient overvoltage suppression

#165
20100073013
2010-03-25

Validation of arc flash detection systems

#166
20100072355
2010-03-25

Arc flash protection with self-test

#167
20100039096
2010-02-18

Transmissivity monitoring of an energy transmission element

#168
20090303642
2009-12-10

Leakage current detection and interruption circuit with improved shield

#169
20080155293
2008-06-26

Apparatus, systems and methods for reliably detecting faults within a power distribution system

#170
20080148112
2008-06-19

Protective system for an installation and a method for checking a protective system

#171
20080108252
2008-05-08

Leakage current detection and interruption circuit

#172
20080062602
2008-03-13

Driver circuit

#173
20070285267
2007-12-13

Ground fault circuit interrupter with end-of-life protection

#174
20070159740
2007-07-12

Leakage current detection and interruption circuit with improved shield

#175
20070090780
2007-04-26

Series motor and method of controlling the same

#176
20070063797
2007-03-22

Electric trip device provided with monitoring means, circuit breaker comprising one such trip device and method of monitoring

#177
20070041134
2007-02-22

Receptacle circuit interrupting devices providing an end of life test controlled by test button

#178
20070030607
2007-02-08

Ground fault circuit interrupter (GFCI) end-of-life (EOL) status indicator

#179
20060224360
2006-10-05

Fault diagnosing apparatus for vehicle and fault diagnosing method for vehicle

#180
20060146456
2006-07-06

Leakage current detection and interruption circuit

#181
20050242779
2005-11-03

Battery protection circuit

#182
20050207075
2005-09-22

Control circuit and a method for electrically connecting a load to a power source

#183
19063815
2025-10-21

High frequency resistant nuisance tripping GFCI and with self-test and end of life (STEOL) circuits

#184
15963092
2019-06-18

Auto-monitoring redundancy for enhanced miniature circuit breaker reliability