H01H33/76 - CPC Classification Index

ClassID:

202976 ⎘

H01H33/76 - CPC Classification

Classification description:

High-tension or heavy-current switches with arc-extinguishing or arc-preventing means; Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor

Sub-classes:

H01H33/765 » {the gas-evolving material being incorporated in the contact material} 8
H01H33/77 » wherein the break is in air at atmospheric pressure 1
H01H33/78 » wherein the break is in gas 16

Recent Application in this class:

20220189720

Contact device

20210050166

Electrical interruption switching element with a tubular separating element with varying wall thickness

20180294117

Method and apparatus for a printed circuit board

20180012716

Gas circuit breaker

20170229266

ARC-SUPPRESSING GAS BLAST IN PYROTECHNIC DISCONNECT

20140319100

ARC energy absorber

20130161289

Gas circuit breaker

20130062313

Gas circuit breaker

20130037520

Switch unit, method for assembling a switch unit, and circuit breaker for a medium voltage circuit

20090134129

ABLATIVE PLASMA GUN APPARATUS AND SYSTEM

20080237194

METAL-HYDRATE CONTAINING ARC-EXTINGUISHING COMPOSITIONS AND METHODS

20080169271

Arc-extinguishing composition and articles manufactured therefrom

20060006144

Arc-extinguishing composition and articles manufactured therefrom

20050146406

Circuit-breaker