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-   -   220 volt switch for compressor (http://www.diychatroom.com/f18/220-volt-switch-compressor-25381/)

powers 08-18-2008 12:57 PM

220 volt switch for compressor
 
I have an air compressor (220v) that used to be hard wired into a house (before I bought it). The guy I bought it from changed it over, so now it has a 220 plug on it. But it doesn't have an on/off switch. Where can I buy a 220volt on/off switch? What type of switch is it?

The only thing I could find at Home Depot looked like a miniature breaker box with 2- 30 amp fuses. It was a big disconnect switch about 8 1/2" tall with an on/off lever on the side. Is this what I need?

Here is a pic of it

http://www.electric-supplier.com/pro...1n_w243361.php

http://www.electric-supplier.com/img...3/FW243361.jpg

hpp58 08-18-2008 01:15 PM

That will work.

Wildie 08-18-2008 03:25 PM

Quote:

Originally Posted by powers (Post 149665)
I have an air compressor (220v) that used to be hard wired into a house (before I bought it). The guy I bought it from changed it over, so now it has a 220 plug on it. But it doesn't have an on/off switch. Where can I buy a 220volt on/off switch? What type of switch is it?

The only thing I could find at Home Depot looked like a miniature breaker box with 2- 30 amp fuses. It was a big disconnect switch about 8 1/2" tall with an on/off lever on the side. Is this what I need?



Here is a pic of it

http://www.electric-supplier.com/pro...1n_w243361.php

http://www.electric-supplier.com/img...3/FW243361.jpg

Here in Canada, Home Depot carries a 220 volt/30 amp breaker box. Something of this nature must be available in your area.
I recently bought one for my cottage a/c. The 30 amp breaker is extra!

joed 08-18-2008 03:44 PM

You should be able to get that same thing without the fuses. It's called an unfused disconnect.

micromind 08-18-2008 08:57 PM

If it's 2HP or less, a 20 amp 2 pole light switch will work. Sometimes you can find a 30 amp one that is rated at higher HP, just look on the box or the switch itself to see what HP it can handle.

Rob

powers 08-18-2008 11:13 PM

Thanks for the help guys!

Cow 08-19-2008 12:03 AM

I agree with Micro. Look for some 2 pole motor rated switches, coincidentally I just installed a few yesterday. I know they come in 20 and 30 amp sizes, they look like a heavy duty light switch.

Pudge565 08-19-2008 12:38 AM

are you talking about a pressure switch since it is plugged in I take it that that is what you are talking about but I could be wrong. Since it is plug and cord you can just unplug it to disconnect.

powers 08-19-2008 11:19 AM

Quote:

Originally Posted by Pudge565 (Post 149849)
are you talking about a pressure switch since it is plugged in I take it that that is what you are talking about but I could be wrong. Since it is plug and cord you can just unplug it to disconnect.

No, it's got a working pressure switch. It just doesn't have a on/off switch. I wanted to wire one up so I can just leave it plugged in and hit the switch to turn it on. The plug is right behind the compressor, so it's a pain in the butt to get to.

powers 08-19-2008 11:20 AM

Quote:

Originally Posted by Cow (Post 149845)
I agree with Micro. Look for some 2 pole motor rated switches, coincidentally I just installed a few yesterday. I know they come in 20 and 30 amp sizes, they look like a heavy duty light switch.

Is this something I can get at home depot? The people that work there don't know too much, so I try to do my homework before I go. Thanks a lot!

Woodyh1 08-19-2008 12:53 PM

You can use a double pole switch
 
You can find this switch at :
http://www.gordonelectricsupply.com/index.jsp?path=find



Quote:

Originally Posted by powers (Post 149665)
I have an air compressor (220v) that used to be hard wired into a house (before I bought it). The guy I bought it from changed it over, so now it has a 220 plug on it. But it doesn't have an on/off switch. Where can I buy a 220volt on/off switch? What type of switch is it?

The only thing I could find at Home Depot looked like a miniature breaker box with 2- 30 amp fuses. It was a big disconnect switch about 8 1/2" tall with an on/off lever on the side. Is this what I need?

Here is a pic of it

http://www.electric-supplier.com/pro...1n_w243361.php

http://www.electric-supplier.com/img...3/FW243361.jpg


J. V. 08-19-2008 01:05 PM

Go to an electrical supply house and get a 30 amp double pole switch. One that will fit in a regular switch box. Mount your switch in a convenient location and use the receptacle you are plugged into for the power.
You can use a single pole switch if you cannot find the 2 pole. Just switch one wire like it is in the pressure switch.
Try to find the double pole switch, with the single pole, one wire will always be hot to the pressure switch.
The blade switch above will work just fine and may even be less money than the snap switch.

PS.....Doesn't the compressor have an on/off switch?

powers 08-19-2008 05:04 PM

Quote:

Originally Posted by J. V. (Post 149987)
PS.....Doesn't the compressor have an on/off switch?

No. It was hardwired into a house circuit. Then the previous owner installed a plug w/out a switch.

J. V. 08-20-2008 12:12 PM

Quote:

Originally Posted by powers (Post 150045)
No. It was hardwired into a house circuit. Then the previous owner installed a plug w/out a switch.

The reason I asked you is because mine has a switch located right at the pressure switch.

comp 08-20-2008 01:52 PM

hard wire and use the breaker to turn on and off


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