UL requirments for Variable Speed Drive 4500 520kVA NEMA type 4 enclosure
UL requirments for Variable Speed Drive 4500 520kVA NEMA type 4 enclosure
(OP)
Our customer wanted us to make a heat exchanger to cool down a Variable Speed Drive 4500 520kVA NEMA type 4 enclosure. This heat exchanger will be enclosed to the enclosure. My question is as this heat exchanger is out of enclosure system, does it need to be NEMA type 4 certified? is there any UL requirement for this kind of product?
or as long as the inlet and outlet of heat exchanger to enclosure properly sealed that is sufficient.
Thank you
or as long as the inlet and outlet of heat exchanger to enclosure properly sealed that is sufficient.
Thank you





RE: UL requirments for Variable Speed Drive 4500 520kVA NEMA type 4 enclosure
For penetrations of a NEMA 4 enclosure, you must use fittings listed for NEMA 4 use.
Good luck on that one. It's a tough challenge in my opinion, we've never field-modified a drive in an enclosure.
Best to you,
Goober Dave
Haven't see the forum policies? Do so now: Forum Policies