Symmetra RM Full 6kva output Hit 101% overload

[Anonymous user]

I have recently purchased 2 Symmetra RM 6kv UPS with step-down converter and working on getting things going. I do have each of them wired to a dedicate 30 amp 240 circuit with the power cable but I hit the 101% and I wasn't expecting that. I do have 4 - 2kva power modules in each one. I used killawatt on each 15 amp connection and should be at 3600 watts and I hit 101% and the overload. At 2700 watts i'm at about 87%. Did I hit the overload on the 30 amp input or on the stepdown converter.

There is a KB article about using a 40 amp breaker with and hardwire you can get the full 6kva.

http://emea-en.apc.com/app/answers/detail/a_id/1142

My question is what is the limiting factor with the full 6kva setup. will I run into overload on a single step-down converter since it's only a 30 cable. Can I have two stepdown converters.

Thanks in advance.

[Anonymous user]

This link helps for multiple 30 amp plugs, I may need to go that direction because I can't use the 20 amp 220 on there now.

I didn't trip the 30amp breaker just hit the overload at 101%. I didn't check what the output was but I should have been at 3600 watt. Which I thought I had a lot more room then that. I am using #6 wire so I could go to 40amp.

Maybe my math is off, but I should be able to get 5700 watts right.

[Anonymous user · Accepted solution]

I have recently purchased 2 Symmetra RM 6kv UPS with step-down converter and working on getting things going. I do have each of them wired to a dedicate 30 amp 240 circuit with the power cable but I hit the 101% and I wasn't expecting that. I do have 4 - 2kva power modules in each one. I used killawatt on each 15 amp connection and should be at 3600 watts and I hit 101% and the overload. At 2700 watts i'm at about 87%. Did I hit the overload on the 30 amp input or on the stepdown converter.

There is a KB article about using a 40 amp breaker with and hardwire you can get the full 6kva.

http://emea-en.apc.com/app/answers/detail/a_id/1142

My question is what is the limiting factor with the full 6kva setup. will I run into overload on a single step-down converter since it's only a 30 cable. Can I have two stepdown converters.

Thanks in advance.