<html><div>NEMA 4 enclosures do not require WP/RT connections. The enclosure provides the protection, just like all outdoor equipment like HVAC units, outdoor panels and terminal blocks inside NEMA 4. Ever see a WP breaker connection other than an open lug or how about rooftop combiners?<br><br><br>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative SOLutions</div></html>
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