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Old 01/10/2008, 07:55 PM   #1
RobTop
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Urgent Elec Help

This is quite urgent. One of my vacation projects was this elec deal and vacation ends at bedtime, so help please and fast.

The project was to put 2 DPST (double pole single throw) timers in. I want all my lights on 2 timers instead of all the differant ones, also this will put all the lights on 1 circuit and frees up several outlets, and bla bla bla.



So here's the problem, wiring these timers, excluding the ground there are 5 wire ports

A Line 1 Load 2 Line 3 Load 4

with the wiring diagram it is clear that the load is 2 and 4 (plus the ground of course)

The line is suppose to be a 3 wire supply, neutral to A, then 1 and 3. The braker is a 2 wire.



The question, is there a way around the 3 wire?

I am no electrition, but could I put the white wire in A, splice the black and hit 1 and 3 or do I need to switch to a 3 wire supply?



Thanks for the help (if it is fast that is


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Old 01/10/2008, 08:06 PM   #2
BeanAnimal
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Can you please post the brand and model of the timers.


From your description:
You listed the timers as DPST

If that is the case, then there are two isolated switches actuated by a single control. If that is the case then yes, you can provide the same AC leg (black wire) to both LINE lugs.

Please post the brand and model to be sure.


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Old 01/10/2008, 08:59 PM   #3
RobTop
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it is a intermatic T103
does that help?


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Old 01/10/2008, 10:18 PM   #4
cannarella
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That is one confusing wiring diagram. It looks like it is meant for 240 but can do 120. So it looks like ground goes to the chassis, Neutral to A, and you can have 2 seperate line loads. Line 1 switches to load 2 and line 3 switches load 4. So you don't really need to use 3 and 4. They timer is designed for 240 so that is why it is DPST for the 2 hot leads. Hope this helps.


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Old 01/11/2008, 06:53 AM   #5
RobTop
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Quote:
Originally posted by cannarella
That is one confusing wiring diagram. It looks like it is meant for 240 but can do 120. So it looks like ground goes to the chassis, Neutral to A, and you can have 2 seperate line loads. Line 1 switches to load 2 and line 3 switches load 4. So you don't really need to use 3 and 4. They timer is designed for 240 so that is why it is DPST for the 2 hot leads. Hope this helps.
that makes the most sence out of all the help I have gotten on all the posts.


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Old 01/11/2008, 07:26 AM   #6
cannarella
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I am assuming you posted elsewhere but here. Bean's, aka Dr. House, question was the most helpful in identifying the model to go and find and decipher the instructions.

Here is a pretty good pic for using it for 120.


Just don't hook up the wire from 1 to 3 and don't use terminal 4.


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If my phaser discharges off by as little as .06 terra watts, it would cause a cascading exothermal inversion.

Current Tank Info: 65 Reef
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Old 01/11/2008, 08:23 AM   #7
BeanAnimal
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I was not sure what the contacts on each pole were rated... That is why I suggested splitting the INPUT between the two poles


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Old 01/11/2008, 08:35 AM   #8
cannarella
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I read the instructions and it is 40A rated. That's on each pole. But he should be fine, it's a water heater timer.

http://www.intermatic.com/images/ins...8ts10946-1.pdf


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If my phaser discharges off by as little as .06 terra watts, it would cause a cascading exothermal inversion.

Current Tank Info: 65 Reef
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Old 01/11/2008, 08:37 AM   #9
BeanAnimal
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Ahh then there should be no problem just ignoring the second set of contacts. Thanks for looking up the timer... I never got around to it!

RN. House


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