H01H33/30 - CPC Classification Index

ClassID:

202886 ⎘

H01H33/30 - CPC Classification

Classification description:

High-tension or heavy-current switches with arc-extinguishing or arc-preventing means; Details; Power arrangements internal to the switch for operating the driving mechanism using fluid actuator

Sub-classes:

H01H2033/306 » {monitoring the pressure of the working fluid, e.g. for protection measures} 4
H01H2033/308 » {comprising control and pilot valves} 3
H01H33/302 » {for fluid insulated switchgear, wherein the insulating fluid is also the working fluid} 3
H01H33/304 » {Working fluid supplies} 6
H01H33/32 » pneumatic 11
H01H33/34 » hydraulic 24

Recent Application in this class:

20200043685

2020-02-06

Particle extraction system for an interrupter

20180190453

2018-07-05

Particle extraction system for an interrupter

20180025867

2018-01-25

Hydraulic drive for a switchgear

20150108092

2015-04-23

Device for actuating the contacts of a circuit breaker, comprising a torsion rod

20130098875

2013-04-25

Gas circuit breaker