Wiring Windmill motor to switch box

Hi guys,

I’ve just acquired a Heidelberg Windmill, and its my first experience with a platen press. The press came with a single phase motor and a separate switch box. It looks like I should screw the 3 wires into the box, but I’m not sure which wire goes to which screw. Does it matter as long as it matches to corresponding wire to the power cord?

I have a black, red, and yellow wire coming from the 110v/220v motor. Can someone tell me what each color is for. I’m getting conflicting info on my internet searches. I have a 220v outlet available to use.

My plan for a power cord was to strip the female end of a 20amp, 10 gauge extension cord, and wire it to other end of the switch box. The male end has a T-socket connection. I cord is intended for industrial/construction use. It has green (ground), white/gray, and black wires. Is the acceptable?

I hope this all make sense. Thanks for the help!

EDIT: I am now doubting if I have 220v to the garage. I was told that one outlet was dedicated for 220v for a fridge, but it has a T-blade prong (NEMA 5-20P) which seems to be rated at 125 volts. It about 6 inches away from another outlet, which appears to be a standard 110v outlet. So it may be 220v. Can’t imagine why someone would put them right next to each other if that wasn’t the case.

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Your pictures appear to show, in the wiring, standard single phase application, red for your only live supply wire, black for your neutral or return, which it has to have, and yellow or green/yellow for earth or ground, which 95% of the time is the same, as the armoured casing, usually ganged together at the motor or the switch gear or both, for added protection. Next illustrated is a dual purpose on/off switch that can be, equally as well used, for single phase or three phase, in single phase form, live and neutral can be utilised by perming any two from three on the way in and the same on the way out, but the on/off buttons can be one of two forms, straight mechanical i.e. when you depress the on button it is exactly the same as pushing the light switch, and vice versa, where as the other system involves a tiny solenoid, in the switch which has to be supplied with a tiny wire from the incoming live and neutral or earth, to bring it in to play, which is beneficial, in that safety micro switches can be incorporated, around the machine, belt guards etc. Next, normally, there is an input junction box on the motor to facilitate wiring in, which contains a legend/diagram plate specifiying, which way round to connect your incoming wires, PLUS a schematic diagram of which (usually) two bridge plates/straps to change, to alter the rotation, therefor fairly simple, single phase in, across two of the three top to bottom bars, and out to the motor, earth is normally an independant connection located on and within the casing of the box. 99 people out of 100 have the good sense to mark, or leave tiny lengths of wire attatched to the spade terminals inside, to help the next man in to bat. Should it come to it and 3 phase, is reverted to, that is a whole lot simpler, 3 phase is generally accepted as more efficient if you go to an inverter, because, swap any two of the three wires over to alter the rotation etc at any point in the scheme i.e. straight out of the inverter, into the switch, out of the switch, on the motor, matters not where.>>>> It seems that in the U.S.A. you are well geared, for three phase applications with very sophisticated inverters, consequently have good speed controllers on hand. It is understood but not yet fully comprehended (by me) that you have a combination of 110 and 240 volts from your national grid. Welcome more input, “A” to help our friend and “B” to help my learning curve. The above is pretty much the picture her in the U.K. but bear in mind this is only, basically our specification. Many Thanks,>>>Mick.

I’ve looked at your post a couple of times already. You are offering a minefield here. I could loose my license making suggestions I think. And yet I’d like to help. First thing, as you are hooking up a machine with a new feed, treat yourself to a new starter. The one you got there is way out of date and dangerous. If you ever have to shut the machine off quickly it will bind, likely in the on position. And you should have a safety disconnect. And before anything else you need to figure out if the motor is three phase or single phase. Your wire colours do not fit any standard. Certainly black is never a neutral as was mentioned above. Red and black “may” be the conductors for a 220V single phase system. But yellow does not equate to green for ground. Work your local network of friends and acquaintances to find an electrician. Makes me shiver, thinking of all the possibilities of what could go wrong.