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Rockwell 34-395 wiring help

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Forum topic by caddguy posted 12-13-2012 03:28 AM 759 views 0 times favorited 4 replies Add to Favorites Watch
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caddguy

2 posts in 1451 days


12-13-2012 03:28 AM

I just bought one of these off of Craig’s list for $700.00.
It came with a 5hp, 21A/250v single phase Baldor and a motor starter on the back of the cabinet.
I have a 30 amp 220v breaker free in my panel which I was going to use.
Here’s my questions:
What wire to use and how to hook up to the starter terminals?
10/2 or 10/3? It looks like it has terminals for hookup labeled l1 and l2 according to the wiring diagram on the cover but I am not sure where my ground goes and if
I was using 10/3….where does the other lead go to?

~Frustrated~
Dave


4 replies so far

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Dan Krager

3256 posts in 1693 days


#1 posted 12-15-2012 04:18 PM

Distance has a lot to do with wire size needed, and you don’t give a distance. Assuming then, that you are wiring a 15’ SO drop from an adequate wall outlet, 10/3 is the minimum I would use. The wire should be color coded black, red, and white (or green). (some areas now require 10/4 where you have black, red, white, and green). The black and red wires are your L1 and L2 and they are interchangeable. The white wire is a load ground and should return to the power panel ground lug ultimately. A green wire is a safety ground and in many areas is interchangeable with the load ground, but in some areas (where 10/4 is required) must be connected to an earth ground.
In the good old days, many 220V circuits were operated with only two wires and no grounds, but that creates potential hazard one should not have to watch out for. Everything is “hot” and is just looking for a shortcut to ground, which is usually some unsuspecting sap that isn’t paying attention. He won’t do it twice, one way or the other!
It sounds like you should offer an electrician friend some Christmas cookies to keep his mouth shut long enough to listen to your situation!
DanK

-- Dan Krager, Olney IL http://www.kragerwoodworking.weebly.com There are three types of people...those who are good at math and those who aren't.

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Grandpa

3256 posts in 2134 days


#2 posted 12-15-2012 05:14 PM

Dan is correct and if you can’t find an electrician to eat those cookies I will….LOL !0 ga wire will carry a maximum of 30 amps. That is important. You need 10 ga or larger. Remember that in wire ga the smaller the number the larger the wire ga. 8 ga will carry 40 amps. 10 ga should be fine. Wire as directed above and I believe you will be fine. Always ground everything.

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caddguy

2 posts in 1451 days


#3 posted 12-15-2012 11:22 PM

I wired it up with 10/2 with ground: blk (hot), wht (neutral) and green ground wire. Hooked it up to a new 30 amp breaker.
Ran everything in conduit since that is code. Black and white wires to l1 and l2, green to ground bar in motor starter panel. Everything runs fine!
This is one heck of a saw btw with a 14in blade on it!

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Dan Krager

3256 posts in 1693 days


#4 posted 12-15-2012 11:29 PM

Good show! And it shouldn’t kick you across the shop unexpectedly either. The saw blade is another matter! Be extra careful! It won’t stall for NOTHIN’!
DanK

-- Dan Krager, Olney IL http://www.kragerwoodworking.weebly.com There are three types of people...those who are good at math and those who aren't.

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