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Converting NEMA 12 enclosure to NEMA 3R

For the NEMA 12/3R enclosure option offered for the class 8502/8536 contactors and starters, it states as follows:

"Watertight conduit hubs or equivalent provision for watertight connection at the conduit entrance, when the conduit enters at a level higher than the lowest live part shall be used.
Drain holes of 1/8 inch diameter shall be added to the bottom of the enclosure."

Will this modification void the UL listing?

Product Line:
NEMA starters and contactors - GIC Product

US Product

Product Specifications and Certifications

This modification will not void the UL listing of the device.
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