DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   Electrical (
-   -   220 mystery (

w00dsg00d 04-25-2011 01:35 AM

220 mystery
Hi everyone, I am new to this site and am need of help. I recently got a dust collector and plugged it into my 220 outlet and it ran for no more than 30secs and just stopped. At first I thought I got a bad switch on the collector but first I checked the subpanel and none of the fuses were blown. I then checked my switch and nothing was burnt or scorched in anyway. So I whipped out my trusty volt meter and checked the outlet and sure enough there was no juice. So this is where I am puzzled. The subpanel has one 30amp fuse which apparently powers the 110 circuit cause all of my tools that are plugged into the 110 are okay. Then there are 2 - 6.25amp fuses that to me looks fine. There are no burnt marks in the fuse, the thin metal is still intact on the inside of the fuse. But for the life of me I can't figure out why there is no juice going to the 220 circuit. I checked the main fuse box and it all looked ok, no blown fuses. Maybe the 2 - 6.25amp fuses are not enough? In that case should I be replacing them with say two 10amps or is that not even safe to do!? Please help

My dust collector is a 2hp 220 12amp single phase

AllanJ 04-25-2011 07:20 AM

Have you found the pair of fuses or breakers (yes there are two) that serve that 220 volt circuit? Measure the voltage at the terminals to the fuse sockets or breakers. If you get the 220 volts there then the problem is in the wires, do the wires stop off at another 220 outlet and daisy chain to the outlet you were using?

A fuse may be blown even though it does not look like it is blown. You can either try it in a different circuit or use a continuity meter or ohmmeter to test it (take it out of the socket first).

joed 04-25-2011 07:58 AM

30 amps is way too big for receptacles. You must change that fuse to 15 if #14 cable or 20 if #12 cable cable.

w00dsg00d 04-25-2011 08:54 AM

220 mystery
I did locate the two fuses (those are the two 6.25amp) and I will check them for continuity. I am not sure I follow on how to check for the wires like you suggested. Do I take out the cover of the subpanel and test the wires there? I don't wanna fry my arms off:huh: So please elaborate. thanks

joed 04-25-2011 01:10 PM

What is your location? 6.25 is not fuse used in North America where most of the people here are from.
If you are in UK then the 30 amp might not be an issue. I am not familiar with the codes over there. You use ring circuits and fuses at the sockets if I am not mistaken.

w00dsg00d 04-25-2011 02:18 PM

220 mystery
No I am actually here in california. I know I have never seen a 6.25amp fuse but just to prove I will take a pic when I get home from work.

WDR 05-04-2011 10:26 PM

They do actualy make edison fuses with strange amp ratings. Grainger has them, if you search plug fuse on thier website you can see them all. I am amazed at how expensive some are!

frenchelectrican 05-04-2011 11:51 PM

I have see that rating however the fuse you have there is way undersized if you have 2.5 mm˛ conductors then you use the 15 amp fuse or breaker and if you still useing fuse please get time delay fuse they will handle the motour start up surge without blowing out out if you use the cheapie type W fuse that will blow as soon the motour start up.

And the 6.25 amp fuse is not super common in Europe as well but we can get it as well.

The 15 amp time delay fuse is cheaper than the 6.25 amp fuse.

And make sure you replace in pair for 240 volt single phase useage.


All times are GMT -5. The time now is 08:22 AM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Search Engine Friendly URLs by vBSEO 3.6.1