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What is the wire size for a UL508 Motor Disonnect Switch MD3304X or the MD3604X?

Issue:
What is the wire size for a UL508 Motor Disonnect Switch MD3304X or the MD3604X?

Product Line:
Digest 177 Section 8 : Operating Mechanism & Disconnect Switches

Enviroment:
North American Products

Cause:
The proper size wire selection for the disconnect.

Resolution:
Wire Sizes:

Power Terminals:

30A MD3404X = 14 - 10 AWG (solid or stranded) = 26.6 lb-in. torque

60A MD3604X = 14 - 6 AWG (stranded) = 31.0 lb-in. torque

60A MD3604X = 14 - 10 AWG (solid) = 31.0 lb-in. torque

Ground Bar Terminals:

30A MD3404X = 14-10AWG (solid or stranded) = 26.5 lb-in. torque

60A MD3604X = 14 - 6 AWG (stranded) = 31.0 lb-in. torque

60A MD3604X = 14 - 10 AWG (solid) = 31.0 lb-in. torque


 
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