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Jeepinfool86 08-16-2012 09:28 PM

Question for PJ
 
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I'm planning on following this diagram you posted. The thread I got this diagram from also had a order list. On the parts list there switchs but no contactors. Are contactors needed?

jeffmeh 08-16-2012 10:42 PM

If the switches are rated for sufficient amperage, then no contactors are necessary. The contactors are used to allow for switches at lower ratings.

P-J 08-16-2012 11:08 PM

That particular diagram was drawn for a 30A 240V feed. The element switch can handle the current (23A) that the element draws.

As jeffmeh said, if you choose a switch of low current carrying capability, then a contactor is required.

Jeepinfool86 08-17-2012 02:09 AM

I also noticed that the fuses say 1 amp. Is that correct? If not what size should they be? 30A?

P-J 08-17-2012 02:19 AM

Quote:

Originally Posted by Jeepinfool86 (Post 4337615)
I also noticed that the fuses say 1 amp. Is that correct? If not what size should they be? 30A?

I placed te 1A fuses so that you can use smaller wire to set up the circuits involved. Re: the E-Stop circuit - That fuse is placed so that any wiring error would prevent a problem. If the circuit is accurately wired the fuse is not needed. I was trying my best to provide a diagram that would be of use to everyone.

JMHO.
P-J


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