DS DS/EN 50425
DS DSEN 50425 2008-MAR-13 Swtches for household and smlar fxed electrcal nstallatons - Collateral standard - Freman's swtches for exteror and nteror sgns and lumnares
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This document intends to describe the requirements and tests to be applied to emergency circuit breaking devices, called fireman circuit-breaker, used to break all the phases of the supply of signs or luminous-discharge tubes - It does not apply to push-button circuit breakers