3PDT Toggle Switch for Grinder

jtdesigns

jtdesigns

Joined
May 2, 2011
Messages
181
Okay, I finally got the right switches in from McMaster Carr to make a switching box so I can run my KMG, Horizontal Grinder, and 9" Disk Grinder from one VFD. The question is pertaining to the pole positions. I understand the overall wiring scheme but am a bit confused as to the numbering on the bottom side of the toggle. When oriented so the toggle moves up and down (as opposed to left and right), the numbers (first row) are 1--4--7 then (second row) 2--5--8 then (third row) 3--6--9. So do I wire the line in to the 2--5--8 row and the line out to the 1--4--7 and 3--6--9?:eek:
 
Always meter a switch to verify how it works.

I never even trust schematics when they come with them.
 
With a double throw switch you will be able to only switch between two tools. If I read your post correctly you are wanting to run 3. Jess
 
With two double throw switches chained, you can use three machines. Add a switch every time you add a machine.

Use a multitester to check continuity. The center row pins should be continuous with one or the other outer row, as the switch is operated.

You wire the center pins of the first switch to incoming power. You wire one outside row out to a machine. You wire the other outside row out to the center pins of a second switch. The second switch can be wired out to two additional machines, or one machine and another switch.

Sounds like you're thinking in the right direction, your hypothesis of wiring in to the center pins should be correct.
 
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