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Norm
Norm, Master Electrician
Category: Electrical
Satisfied Customers: 67
Experience:  Registered professional electrical engineer and licensed master electrician.
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the wiring diagram for reversing a 110 v electric motor with

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the wiring diagram for reversing a 110 v electric motor with a six pole reversing switch

Norm :

Hi, I'm Norm and I'd like to help. I've attached a page from the Square D motor control wiring diagram book that has the diagram for a 6-pole reversing drum switch, which is a universal application, so the diagrams also apply to your Dayton switch. The diagram for your application is Figure 3. This diagram applies to both 240-Volt and 120-Volt connections. When connecting a 120-Volt motor, the botXXXXX XXXXXne is the neutral.

Drum Switch
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Norm :

Since terminals 5 and 6 are in the neutral line, they should be wired together externally with a jumper to avoid switching the neutral.

Norm :

I will be away from my computer for a couple of hours, but will check back in at that time.

Customer:

Norm

Customer:

Norm I need to know the connections on the motor end also. My 220 diagram shows the line into the drum switch as the top and bottom Terminal 2 and 6 on the right and nothing on the center post Terminal 4. And out of the drum left side as white lead goes from Terminal 1 to T4 on motor, Green lead goes from Terminal 3 to T8 on the motor Black lead goes from terminal 5 to P1 on motor and lines T235 are taped on motor. I am using a standard three wire lead between the drum switch and motor. The diagram you sent seems to be using four wires between the switch and the motor is that correct ? Can I do this with three wires ?

Norm :

If you send me the model number of the Dayton motor, I can look up the wiring diagram and tell you how to connect it. I'll be back in three or four hours. Thanks.

Customer:

dayton farm duty C faced motor attached to a gear head 1 or 1 1/2 hp

Norm :

Hi. I'm back. Attached is another sketch with the motor terminals identified. I could not find a diagram with motor terminal designations that corresponded to your 240-Volt motor connections. The connections shown here are for a dual-voltage 120/240-Volt motor and are industry standard. It will, in fact, require a four-wire cable between the switch and the motor. To get specific with your motor, I need more information, specifically the Grainger catalog number, which should be something like 2E456 or similar numbering. We can go from there if you like......Norm

Drum Switch and Motor
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