WebDec 10, 2024 · 3. Multiply the value for current by 125 percent to determine the size of the breaker you need for the heater. A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a ... WebNov 5, 2009 · 10 kW at 220v will use 45.45 Amps. I'd recommend a 60A circuit, with a 60A breaker, but the heater or electric furnace should have "maximum fuse amps" rated on its nameplate. Above all,...
How to Find the Proper Size of Circuit Breaker? CB Calculator
WebFeb 25, 2016 · #1 So When sizing Conductors for 15kw heat with a 3.9A Blower motor. You Have 15000/240=62.5A + 3.9A = 66.4A x 125%= 83A Conductor is 83A = #4 Thhn OCP is 83A so Code says if not a standard size fuse you need to go up to next standard size. (240.4B) 240.6A) With all that said is it all right to run a #4THHN and install 90A Fuses. Oct 8, 2024 · churches in buffalo mo
Breaker size for 2.5 Goodman air handler with 10kw heat …
WebJul 24, 2024 · We are going with a Goodman 2.5 ton heat pump with a 10kw heat strip. The current system is on a 60 amp breaker and the HVAC guy said the current system has a 15kw heat strip. Your question is one that your contractor should answer as he knows … WebJan 29, 2012 · My guess is that, if it is in fact a 15 kW system (and it may be, with a heat pump of that size), it has a 10 kW heat strip and a 5 kW strip, perhaps staged in some fashion. The 10 kW strip would be on the 60A breaker, and probably everything else in the air handler -- the 5 kW strip, the blower, and the low voltage -- are on the 30A breaker. WebNov 13, 2024 · I am now going to be installing a disconnect and Circuit Breaker (CB) for a 15KW heat strip (heat strip only, no other load). Previous electrician ran a 2 cdr 4 awg 1 cdr 6awg NM copper wire for this install. The heat strip is actually 14,400 watts 208/230 volt. I calculated the CB as 14,400/240 = 60A x 1.25 = 75A so I am using an 80A breaker. churches in buena vista colorado