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wiring a reversing switch
3

wiring a reversing switch

wiring a reversing switch

(OP)
I need to replace a revese switch(contacter) on a 1/4hp single phase motor. The switch is a 6 terminal Square D. Could anyone tell me the correct wiring sequence?

RE: wiring a reversing switch

It depends on the motor wiring scheme. There are generalities, but to be accurate you need to look at the motor's manual or see if there is a diagram on the inside of the connection box.


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RE: wiring a reversing switch

(OP)
No manual & no diagram. Just a description saying to reverse motor interchange red and black leads, motor must be grounded.

RE: wiring a reversing switch

Is this switch a two position "forward/reverse" switch or a three position "forward/off/reverse" switch.

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: wiring a reversing switch

(OP)
3 position switch with 6 terminals plus ground. the motor has 4 wires, red, black, yellow(marked lead), green(marked lead ground).

RE: wiring a reversing switch

(OP)
red wire and black wire are attached to their respective terminals. yellow wire and blue wire(not green)come from inside armature. can you point me in the right direction. i've found a wiring diagram for the switch but i'm not sure which wires need to be attached to which terminals as i'm not sure whether this is a 4 lead or 3 lead induction repulsion motor. this is undoubtedly a stupid question but are one of these wires not a ground?  

RE: wiring a reversing switch

Repulsion-Induction, that takes me back. The few that I worked on were reversed by shifting the brushes. Got a picture?
"this is undoubtedly a stupid question but are one of these wires not a ground?" Possibly several of then are not a ground.
Got a picture? WE may be becoming confused. What does the nameplate say?

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: wiring a reversing switch

(OP)
Name plate says Dayton Gearmotor Model 5K940, F/L RPM 60, HP 1/4, Torque 200 in/lbs, Ratio 29:1, Volts 115, Hz 60, Amps 4.6, Ph 1, Code R, S.F. 1.0, Amb 40 C. Cont, Class A Ins.  Motor is minimum 37 years old it was put into use here around 1972 and was probably secondhand at the time. Attached is photo of inspection hole of motor. I am unable to get a clear photo of the nameplate.  

RE: wiring a reversing switch

(OP)
Thanks guys,
Works like a charm. I appreciate the help.

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