ClassID:

202471

H01H9/40 - CPC Classification

Classification description:

Details of switching devices, not covered by groups  - ; Means for extinguishing or preventing arc between current-carrying parts Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Recent Application in this class:
#1
20250210284
2025-06-26

Contactor With Multiple Contacts for Conducting and Limiting a Current

#2
20230245840
2023-08-03

Switching Device

#3
20230045653
2023-02-09

Switch for an on-load tap changer and load transfer switch for an on-load tap changer

#4
20220148835
2022-05-12

System of four way automatic transfer switches

#5
20200168421
2020-05-28

Four-way automatic transfer switch

#6
20200013571
2020-01-09

Switching apparatus

#7
20190172671
2019-06-06

Switch arrangements for microelectromechanical systems

#8
20190165601
2019-05-30

Cooling systems and methods for automatic transfer switch

#9
20190096595
2019-03-28

Low profile blow-on force automatic switch

#10
20190051469
2019-02-14

System and method for thermal protection of automatic transfer switch

#11
20190035587
2019-01-31

Movable contact arm set for switching contactor

#12
20180277315
2018-09-27

Low voltage electrical contact system with enhanced arc blow effect

#13
20180233314
2018-08-16

Molded-case circuit breaker for DC

#14
20180166236
2018-06-14

Switching system

#15
20180019076
2018-01-18

High thermal efficiency electric switch and method for interrupting electric current

#16
20170358410
2017-12-14

Switch

#17
20170279250
2017-09-28

Power distribution system

#18
20170162344
2017-06-08

Electrical switching device having parallel switching paths

#19
20160379770
2016-12-29

High thermal efficiency electric switch and method for interrupting electric current

#20
20160056000
2016-02-25

Switch apparatus for connection with a DC circuit

#21
20140376144
2014-12-25

Electric contactor and control method of one such contactor

#22
20140175056
2014-06-26

Switching device suitable for direct current operation

#23
20140158511
2014-06-12

Switch device

#24
20140028418
2014-01-30

Electromagnetic relay

#25
20140015628
2014-01-16

Electromagnetic relay

#26
20130207750
2013-08-15

Solenoid device and electromagnetic relay

#27
20130056339
2013-03-07

Electrical cut-off device with high making capacity

#28
20130037517
2013-02-14

Switch device and connector

#29
20130025934
2013-01-31

Electrical distribution system

#30
20130015930
2013-01-17

Fast switch with non-circular Thomson coil

#31
20120211469
2012-08-23

Circuit breaker with arc extinguishing mechanism

#32
20120206221
2012-08-16

Relay with multiple contacts

#33
20120188032
2012-07-26

Relay with multiple contacts

#34
20120182100
2012-07-19

Contactor and switch

#35
20120175344
2012-07-12

Magnetic contactor

#36
20120000753
2012-01-05

Quad break modular circuit breaker interrupter

#37
20110315530
2011-12-29

Switch assembly

#38
20110079583
2011-04-07

Circuit breaker having dual arc chamber

#39
20110075303
2011-03-31

Circuit interrupter and receptacle including improved contact configuration

#40
20100126966
2010-05-27

Switchgear device for breaking a bidirectional direct current and installation with photovoltaic cells equipped with such a device

#41
20100108643
2010-05-06

Switching device with a vacuum interrupter chamber

#42
20100078299
2010-04-01

Contact arm assembly and method for assembling the contact arm assembly

#43
20090288935
2009-11-26

Contact device for a high resistive power contactor

#44
20090201617
2009-08-13

CIRCUIT BREAKER

#45
20090159409
2009-06-25

MEMS microswitch having a dual actuator and shared gate

#46
20090139849
2009-06-04

Trigger switch

#47
20090134962
2009-05-28

Switching device

#48
20090127230
2009-05-21

SWITCHING DEVICE FOR DIRECT-CURRENT APPLICATIONS

#49
20090000933
2009-01-01

Circuit breaker subassembly apparatus

#50
20080309438
2008-12-18

Micro-electromechanical system based switching

#51
20080068041
2008-03-20

Look-up table structure with embedded carry logic

#52
20070209827
2007-09-13

Connecting Bar Arrangement for an Electric Switch and Electric Switch Comprising a Connecting Bar Arrangement

#53
20070139830
2007-06-21

Micro-electromechanical system based soft switching

#54
20070080764
2007-04-12

Switch

#55
20060274459
2006-12-07

Modular contactor assembly having independently controllable contractors

#56
20060237297
2006-10-26

Switch assembly

#57
20060181380
2006-08-17

Electromagnetic relay

#58
20060128177
2006-06-15

Electric contact device

#59
20060000700
2006-01-05

Switch contacts

#60
20050184837
2005-08-25

Contactor device of circuit breaker

#61
20050162245
2005-07-28

Method and apparatus to control modular asynchronous contactors

#62
20050122085
2005-06-09

Method and apparatus to independently control contactors in a multiple contactor configuration

#63
20050073787
2005-04-07

Method and apparatus to control modular asynchronous contactors

#64
20050068128
2005-03-31

Anchorless electrostatically activated micro electromechanical system switch

#65
20050013085
2005-01-20

Method and system of controlling asynchronous contactors for a multi-phase electric load