How do I properly connect my old air compressor to power, specifically which plug should I use?
Asked by Judith Willis 
5 months ago
Last Updated: August 12, 2024
Hey there! I recently found my old air compressor in storage and I’m looking to get it up and running again. Could you help me figure out the best way to connect it to power? Which plug should I use? I’ve also included some photos of the wires and the motor voltage strip for reference. Thanks in advance!
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Use a 15amp socket
You are unable to dispose of it
Not Certified or Listed for North America. It could pose a risk of fire and shock. Remember, Brown is live, blue is neutral. Verify with your insurance. In order to connect, you need to wire both as live to 240V. It’s designed for 50Hz. If you use 60Hz, it will generate more heat. It’s advisable not to connect this.
Trayton ammon just mentioned that he lives in Luton, England. I have no idea what they do there. lol.
Alright, I thought it was not applicable. My mistake. Just grab a 15A cap and you’re all set. Sounds good, right?
I mentioned earlier that the green wire is for ground and the remaining wires should be connected to a 2-pole breaker.
Why do we need two poles?
Mentions that the motor requires 240 volts
If you’re unsure, it’s always wise to seek help from someone with experience
If you’re located in the US, make sure to use a 6-20r outlet along with a corresponding 6-20p plug.
You should contact your local electrician for their phone number… that’s the best course of action!
Brown indicates the live wire and blue represents the neutral wire
I’ve never given that a shot before, but now I’m curious to see if it actually works.
Since the motor isn’t thermally protected, you’ll require a 2 pole motor switch with the right thermal overloads, a 2 pole 30 amp breaker, and a 20 amp 250 volt plug. You might also consider hardwiring the motor to the thermal switch. A 20 amp breaker could work depending on the initial load.
Who’s in the UK, simply needs a 15 amp cord cap.
If he’s in the UK, he’ll still require motor thermal protection. And whatever they use in the UK for cord and plug connection.
You’ll need an L6-20 20 amp twist lock wire cap and receptacle.
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… the recommended approach is to enlist the services of a licensed electrician… you are dealing with the most hazardous city in the world, known as ELECTRI-CITY.. proceed with caution… Life is irreplaceable
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Make sure you utilize Alternating Current.
Make sure to connect it to a motor starter.
‘ assumption?
DOL is likely to be acceptable.
I would attach a 3-pin plug and test it that way. Alternatively, you might be aiming for a fused spur
For the 220v cord cap, you’ll need either a Nema 15 or 20 amp 3 wire.
Want the best solution? Consider hiring an electrician.
In the UK, the cable colours are:
Brown: Line
Blue: Neutral
Yellow/reen: Earth/CPC.
It would be helpful if you could specify the countries you’re not in for clarity on your post.
Consider using a contactor with a 220 vac coil to easily switch on and off.
I see it’s listed at 50 hz, are you located in the states?