Originally Posted by PepijnB
We have a comet extreme 4.5 kva. It has 2 PDU's attached to it. Does anyone know if we can connect a third one?
It all depends on your load. What is your load. Most likely the UPS has a capacity just over 3kW. I doubt the 4.5KVA UPS will be able to support an additional PDU and still maintain your load without the UPS system going into internal bypass. When you go into internal bypass, you no longer have a UPS system and you have an expensive switch connecting you directly to the Utility power.
Contact me and we can discuss further.