UL 60947-4-1
Low-Voltage Switchgear and Controlgear – Part 4-1: Contactors and Motor-Starters – Electromechanical Contactors and Motor-Starters
standard by Underwriters Laboratories, 04/04/2014
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UL 60079-26
Explosive Atmospheres – Part 26: Equipment with Equipment Protection Level (EPL) Ga
standard by Underwriters Laboratories, 04/21/2017
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