How do we size HVAC circuit breaker

ghk Posts: 1, Reputation: 1

New Member

Jan 20, 2010, 04:42 AM

How do we size HVAC circuit breaker

Q:We have to purchase an A/C package unit, approx. 22 tons. The spec given is: total running amps 124 A, at 230v 3 phase 60 Hz, 80kw rated.
We have to find the circuit breaker rating and the conductor size?

Check out some similar questions!

What size circuit breaker? [ 2 Answers ]

Finally installing electric garage heater that I have been asking questions about recently. Instructions say that heater draws 31.9 amps and that 6 gauge wire is required. That's all fine, however, my question is what size 2 pole breaker should I use, 50 or 60 amp? If it is any help, it is a 7.5...

Circuit Breaker Size [ 6 Answers ]

I have a 48A 240VAC instantaneous water heater. What size circuit breaker do I need? I am thinking a 50A would do because it is not continuous.

What circuit breaker size should I use? [ 12 Answers ]

I recent purchased a heater that is rated 42.2 amps @ 240 volts. I was told by a licensed electrician that 8 awg would be fine for the heater. I have read some forums and now am questioning that also. I am wiring it in @ 220v So my questions are. Will it pull more amps @ 220v and if so how much?...

Circuit breaker size for several 300 watt flood light [ 10 Answers ]

I like to install 4 sets of flood lights. Each set is a pair of 150 watts bulb, for a total Of 300 watts per set, for a grand total of 1,200 watts for all 4 sets. Can I put all 4 sets of flood ligts on a 15A circuit? This is the way I like to install them: 2 sets of flood lights for the back...

View more questions Search

Check out some similar questions!

Add your answer here.