NEN EN 50557 : 2011
Current
Current
The latest, up-to-date edition.
REQUIREMENTS FOR AUTOMATIC RECLOSING DEVICES (ARDS) FOR CIRCUIT BREAKERS-RCBOS-RCCBS FOR HOUSEHOLD AND SIMILAR USES
Published date
12-01-2013
Publisher
Pertains to Automatic Reclosing Devices (hereinafter referred to as "ARD") for household and similar uses, for rated voltage not exceeding 440 V a.c. intended to be used in combination with circuit-breakers and/or RCCBs and/or RCBOs, and designed either for factory assembly or for assembly on site.
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