CSA C22.2 NO. 60947-5-5:21
Low-voltage switchgear and controlgear – Part 5-5: Control circuit devices and switching elements – Electrical emergency stop device with mechanical latching function (Adopted IEC 60947-5-5:1997, edition 1:1997 consolidated with amendment 1:2005 and amendment 2:2016, with Canadian deviations)
standard by CSA Group, 02/01/2021
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