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UL

PDF Standards UL 60947-7-4

Low-Voltage Switchgear and Controlgear – Part 7-4: Ancillary equipment – PCB terminal blocks for copper conductors
standard by Underwriters Laboratories, 04/27/2018

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UL

PDF Standards UL 60079-15

Electrical Apparatus for Explosive Gas Atmospheres – Part 15: Electrical Apparatus with Type of Protection 'n'
standard by Underwriters Laboratories, 02/15/2013

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