magma braker

[686]

for those that use the 90 lb magma pot 220, what braker size do you use 15, 20, 30 amp. ? thanks

[Springfield]

Using the old formula Volts x Amps = Watts, 15 comes in to be the very minimum. I put a 20 amp breaker in for my 40 pounder(1500 watts) , but I ran a whole new line in for it. It won't do you much good to put in a 30 amp breaker if your line isn't up to it.

[686]

My Casting Building Has It's Own Braker Box And I Will Be Running I New Line For The Pot Only. Thanks

[kodiak1]

20 Ampere Man Don't need any hassle from a weak breaker kickin when you is a castin.
Ken.

[Lloyd Smale]

how many watt pot is it? divide the wattage by the voltage and it will give you amperage. Go at least 20 percent over that. being that its 220 volt it will only need a 220 breaker half the amperage of what it would if it were 120 volt. What i did is run 220 to my bench in the barn and wired a subpannel there with a 220 breaker and 6 120 breakers and run my loading and casting out of that panel.
for those that use the 90 lb magma pot 220, what braker size do you use 15, 20, 30 amp. ? thanks

[DaveInFloweryBranchGA]

For you fellas that are throwing those larger breakers in, are you making sure you have wire that can carry the current? If not, you're risking a fire.

regards,

Dave

[crazy mark]

How many of you know a circuit and its breaker is really rated for 80% of the rated amperage. Therefore a 20 amp circuit is really rated for 16 amps. If you need a full 20 amps then you should go with a 25 or 30 amp breaker and the proper size wiring. Mark

[454PB]

Use 12 guage wire and a 20 amp breaker. I run a 240 volt 4000 watt electric heater in my shop on this. I doubt that your melter pulls 4000 watts.

[DonH]

Listen to Mark. That is the straight scoop - straight from the National Elictrical Code. It is what all wiring system design is based on. Gives necessary safety margin, breakers won't overheat, etc.