120/240 Volt hard wired Surge Arrester

[powerplay]

When using a 120/240 volt surge arrester with one white lead and two black ones, I was told it was ok to use it one an 120 volt circuit as long as I spliced the white to white and the two black ones to the black circuit conductor...does this sound accurate?

Thanks in advance...again !

 

[SG-1]

Normally, these type devices connect directly to a dedicated circuit breaker.

Exactly where are you going to splice it in ??

Make & model number are always helpful.

 

[powerplay]

It's a small block one I believe model SDSA1175. I just intercepted the circuit before the shutoff switch by the door of the Boiler Room ahead of the Tekmar Controls with an deep 4 by 4 box, and spliced it in there.

 

[powerplay]

,,,downstream to protect the Tekmar unit like an computer surge protection bar from surges other than what comes off the street ?

 

[61333]

Can you take a picture of it?

 

[SG-1]

Your discription seems to match the wiring diagram on the second page.

http://static.schneider-electric.us...Devices - Literature Archive/48040-989-02.pdf

 

[dbchamblee]

SG-1 is right. Use the diagram for the two wire service. You're just parallelling the protection elements giving you twice as much surge current capacity.