Wiring help needed for DPST relays

[Dgonza9]

Can anyone help me out with wiring a DPST relay? I'm making a control panel that will turn on two 120v lines with one switch for two elements mounted in a keggle.

I attached a diagram. Could be way off as nothing on this DPST contactor was labelled. Hopefully I at least have the idea right, bring two 120v lines to the contactor with the switch wired to center input near coil. Then bring two 120v loads out of it. Wire neutral to the other side of the coil. Mine has only one neutral as these are two 120v legs of a 30amp 240v gfci breaker.

Thanks for the advice.

 

[l3asturd]

Think you got it. Is the coil voltage on your relay 120VAC? Should be. Here's what I came up with:

 

[Dgonza9]

The coil is 120VAC. Thanks for your help. It's rare when I get something right on the first shot!

Now my contactor does have a second set of inputs on the other side of the coil, so on top of your drawing. I hope that doesn't mean it's actually dpdt?

Here's a link

Do I have the right contactor? Or do the extra "coil" inputs mean I have a dpdt contactor?

 

[LordUlrich]

You seem to have a miss understanding about what a dpdt relay is. Double pole means there are two switches, controlled by the single coil, double throw means that each switch has 2 positions, nc and no meaning you can use it as a selector, no power to the coil one set is connected give it power and the others are connected. You can use a dpdt as a dpst and lots of dpst relays are actually dpdt but without the nc contacts broken out of the package.
Pull out a multimeter and use the continuity settings to poke around and learn a bit.

 

[Dgonza9]

You seem to have a miss understanding about what a dpdt relay is. Double pole means there are two switches, controlled by the single coil, double throw means that each switch has 2 positions, nc and no meaning you can use it as a selector, no power to the coil one set is connected give it power and the others are connected. You can use a dpdt as a dpst and lots of dpst relays are actually dpdt but without the nc contacts broken out of the package.
Pull out a multimeter and use the continuity settings to poke around and learn a bit.

I'm not sure if I have it confused or not. You say Double Pole means two switches. I think of it as two power sources to be switched by the contactor.

Double throw to me means "two switches" in the sense that they can be switched independently.

Let me ask you this, if I wire it as indicated above with one switch to the coil, it should function as I need it to, right, switching two elements on when I hit the button, correct? Or do I need to wire my switch to both sides of the coil to switch both loads at the same time?

Does this contactor have one coil that is either open or closed depending on the switch I wire in? That's really what I'm trying to figure out.

 

[P-J]

Here is a corrected diagram for the contactor. (The coil has the inputs on opposite sides of the assembly.) Take a very close look at the product illustration on the Amazon site and you will understand.

 

[Dgonza9]

Thanks PJ. I think I'm set. Thanks to everyone who responded.

 

[bagpiperjosh]

how did you wire to the coil? do you have a pic?

 

[Dgonza9]

PJ's diagram above is spot on.

 

[bagpiperjosh]

PJ's diagram above is spot on.

i figured it out.. thanks!

 

[carkom]

Reviving an old post but I'm wondering if I can use this set-up for my build. I noticed that the diagram shows only one hot wire going to each element. I have a 5500w element that needs 240v and a ground. Is this contactor still usable? If so how would I wire it? Thanks!