ken44
Senior Member
- Location
- Austin, TX
I have a hot issue that I need some help with, we had an ATS Controller for a fire pump that pulls 73 amps at 480 volts, it was delivered to the job site yesterday and the replacement ATS has 150 amp OCPD's while the existing ATS has 225 amp OCPD's. The company that designed the replacement insists that it is correctly sized in accordance with NFPA-20, while I maintain that it should have been sized at 300% of the FLA according to Article 695 of the NEC.