SUA3000RMT2U how to wire to 208v?

[Anonymous user]

Hello,

We currently use an SUA3000RMT2U when we go to trade shows. Most of the time the facility can supply us with an l6-30 receptacle and we have no issues. We have one coming up that can only supply us with an L21-30 single phase. If I purchase an L21-30 plug how do I wire this? The APC has 3 wires so I assume I just take the two hots and put them to the 208v hots and the ground wire to ground is that correct?

Thanks for any help.

[BillP]

are you going to cut the plug off of the UPS or what are you planning to do?

i am not that familiar with the L21-30 but from what I do know, its a 120/208, three phase, five wire four pole outlet type.

the UPS you mentioned needs a 208v power supply - two hot legs and a ground with a 120º phase angle between the two hot legs

[Anonymous user · Accepted solution]

Thanks for your reply. We removed the plug and the electrician was able to to use an L14-20p. No clue how he wired it, but it is working.

Thanks again.