Re: Contactor questions

You wrote: 
>>From SROYS-at-radiology.ab.umd.edu Mon Oct 16 08:44 MDT 1995
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>From: "SROYS"  <SROYS-at-radiology.ab.umd.edu>
>Date:         Mon, 16 Oct 1995 10:01:33 EDT
>Subject:      Contactor questions
>I just bought a couple of 3-phase, 3-pole, open-type AC reversing 
>contactors at a hamfest yesterday and I have some questions. The box 
>says that the contactor is rated for 27A continuous use.  Since each 
>contactor has two relays and each relay has three contacts, does this 
>mean that I could wire everything up in parallel and be good to go for 
>up to 3 * 2 * 27A, or is the 27A rating for each relay rather than 


>Also, the connection diagram is a little confusing and I haven't had 
>to play with it yet, but I'm assuming that I CAN wire it so both 
relays can 
>be energized simultaneously and give me simultaneous parallel switch 
>closures?  How should I wire things up for 120V or 240V operation?  
>Since 120V only has one hot line, can I run the one hot wire through 
>relay (which would give me 6 parallel relay contacts to use), or 
should I 
>run both the hot and neutral line through (esentially one relay per 
> Presumably with 240V, I should also run both hot wires through the 

If you can guarantee which is neutral and hot in your 120V wiring, 
parallel all the contacts on the hot.  Of course, use separate contacts 
for 220V connection.