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AC motor power supply Answered

I have an old Dayton electric motor I pulled out of a lab blower. (I have no idea how old it is, I pulled it out of my grandpa's bottomless basement.) It looks like it still works, but I found it with no wires or anything attached to the terminals. (All of the internal connections look good, however.) So, here's the tricky bit, how do I run power to it? I copied everything off of the label on the motor, and I'll post it on the end. I've got very near to 0$ in the project bank, so the cheapest I can possibly do this the better. I don't need anything nearly as sophisticated as speed control, or anything like that. Here's the info from the label: model: 5K261 HP: 1/3 RPM: 1725 V:`115 A: 5.4 Hz: 60 Time Rating: Cont. Temp. Rise: 48C PH: 1 Frame: 56 Brgs: Sleeve Code: H S.F: 1.35 S.F.A: 6.0 Amb: 40C No.: S60CXCDY-4065 Insul: Class: A Thermally Protected: AUTO I'm not quite sure what I'm going to do with it yet, that depends largely on how well it works.


Okay, the important bits: It's designed to run off 115 volts, on a 60 Hz cycle. That's AC wall power. The rated amperage is 5.4 amps. It will turn at 1725 RPM, and can generate 1/3 horsepower. Most of the rest is just codes about how it's built, and unless you're rebuilding it, who cares?

Supplies needed: One old power cord. Try to find a relatively hefty one, as 5.4 amps is a fair amount of current (Imagine a 5.4*115= 621watt lightbulb. That's how much power this thing uses.). You don't need welding cable, just something between that and the cord from a lamp. Attach the cord to the terminals and plug in (in that order ;-)).

Or just follow NachoMahma's instructions. He typed that as I was typing this. I never get to be first! *sad*

for 5.4 amps the minimum would be 22 gauge (really pushing the limit of the wire, max amps of 7, extremeley unsafe). A cheap cord for old extension cords or lamps are usually 18 gauge (I think) and the max amps for 18 gauge is 16 amps.

generally speaking, ac 110 volt devices should use 18 awg cords.

. Put a little oil in the bearings (if possible), tie/bolt/nail it down (do NOT try to hold it - it will want to twist a LOT when you start it), wire it to 110-120VAC (US mains), and let 'er rip. . Be prepared for a dead short, bad bearings, &c.; Use a 15-20A circuit breaker (or slow-blow fuse) and an emergency shutoff switch (a wall toggle sw might work).