SSH EN 50047:1981

Pajisje shpërndarëse dhe kontrolli të tensionit të ulët për përdorim industrial - Çelësa kontrolli - Çelësa pozicioni 30 x 50 - Përmasat dhe karakteristikat

Low-voltage switchgear and controlgear for industrial use - Control switches - Position switches 30 x 55 - Dimensions and characteristics

Scope

This Standard applies to certain position switches with automatic return actuator for industrial use, the standardized dimensions of which and the characteristics necessary for their application are given hereafter. A larger size (42,5 x 80) is standardized in EN 50 041. Electrical characteristics shall conform to those of IEC Publication 337 - Control switches. This standard includes the four following types: roller lever, rounded plunger, plunger with roller, roller lever arm. The devices are fitted with either snap action, or slow make and break, mechanisms