Hello All,
I have a 600KVA UPS that we are installing. It is going to have (6) Remote battery cabinets about 15 feet away. Each battery cabinet is going to have a 200 amp factory installed disconnect (So there will be (6) DC Breakers in parallel feeding the DC bus in the UPS). There is an option to install a Main DC disconnect 1200 amp between the batteries and the UPS but they have chosen not to.
My question is this: Is it code compliant to not have a single DC breaker/Disconnect feeding the UPS? I see it as an accident waiting to happen. In order to work on the UPS you would have to open all (6) DC breakers to de-energize the DC input into the UPS.
Any thoughts?
Thanks!
I have a 600KVA UPS that we are installing. It is going to have (6) Remote battery cabinets about 15 feet away. Each battery cabinet is going to have a 200 amp factory installed disconnect (So there will be (6) DC Breakers in parallel feeding the DC bus in the UPS). There is an option to install a Main DC disconnect 1200 amp between the batteries and the UPS but they have chosen not to.
My question is this: Is it code compliant to not have a single DC breaker/Disconnect feeding the UPS? I see it as an accident waiting to happen. In order to work on the UPS you would have to open all (6) DC breakers to de-energize the DC input into the UPS.
Any thoughts?
Thanks!