We currently have a 30amp circuit to a back garage; will a 38amp heater cope on this?
2007-09-14 01:55:31 · 8 answers · asked by ruthedatalbot 2 in Home & Garden ➔ Do It Yourself (DIY)
you will need to upgrade the wiring going out there to #6 and it will need to be on a fifty amp breaker...if you already have any items plugged into the 30 amp cicruit that pull more than ten amps such as a deep freeze ...I would install a new cable and breaker just for the heater...i would also make sure it is a ground fault breaker as this is for your pool
2007-09-14 12:18:48 · answer #1 · answered by Anonymous · 2⤊ 0⤋
It might run but not for long. The amp rating is usually the number of amp a devise draws upon start up (also known as Full Load Amps) The amp in your circuit refers to the size of the fuse used in the circuit to protect it. If you run the heater on a smaller circuit it will overload and blow the fuse or breaker. I would have a 50Amp circuit installed by an electrician. Shouldn't cost too much.
Good luck
2007-09-14 02:40:24 · answer #2 · answered by blueman 5 · 1⤊ 1⤋
The 38 amp heater will need a 50 amp circuit. It will not work on a 30 amp circuit.
2007-09-15 09:26:23 · answer #3 · answered by John himself 6 · 1⤊ 2⤋
Most motors have a minimum and maximum AMP rating. Double check you are reading the minimum. If the minimum is 30amps or less you can use the 30amp.. anything other you will have to _upgrade_ the existing wire and upgrade the breaker. Which is not as easy as the other guy said.
2007-09-14 07:11:19 · answer #4 · answered by Kris_B 3 · 0⤊ 2⤋
No to the 30 A. circuit.
You should have a 50A. circuit with # 6 wire.
(The rule is to load circuits only to 80% of
rated capacity so 40A. is too small.)
2007-09-14 10:24:13 · answer #5 · answered by Irv S 7 · 2⤊ 0⤋
There should be a max over current protection sticker on the heater.Check in the paperwork also.
To answer your question,NO !
A 30 amp breaker will/should not carry a load in excess of rating without tripping.
be-careful taking advice from DYI's
When dealing with electricity and water be safe and get a licensed electrician to help.
Hope this helps
2007-09-14 12:18:37 · answer #6 · answered by greg w 3 · 0⤊ 4⤋
a 50 amp breaker always figure 10% above the load it will be fine
2007-09-14 02:41:34 · answer #7 · answered by randall g 3 · 0⤊ 2⤋
no.
according to electrical code you need a 45amp cicuit, size #8 wiring, 45a breaker or fuse.
2007-09-15 09:30:18 · answer #8 · answered by Anonymous · 1⤊ 2⤋