Trying to find a 63A/80A 2P or 4P 2N/C contactor

[Rockingit]

Having not a lot of luck in my search for the above - I can find N/O ones by the bucket, but not N/C.

The icing on the cake would be a 2p 63A with 2 x N/O and 2 x N/C.

Any suggestions or links?

Before anyone asks, the reason that I need n/c is because this system is going to be static for (hopefully) years on end (forever, even) apart from testing, so I don't want to keep a coil energised on a n/o one. It also needs to be resiliant against power failure.

 

[Spoon]

It may seem silly, as I dont know why you actually need the contactor for, but wouldnt you be better off with an isolator then?

 

[Rockingit]

Not a silly question at all. It's for an emergency isolation circuit so that triggers from a sprinkler system can shut off electrical supply. It's to be fitted downstream of the circuit MCB. A remote triggered disconnecting MCB - now wouldn't THAT be a good idea?!

 

[Guest123]

So, are you after the main poles being 2 x NO & 2 x NC??

 

[Rockingit]

Here's what I'm trying to achieve - if the main poles were 2N/O and 2N/C then it would save the primary contactor as I'd just use the N/O to short out the coil in the usual way.

This circuit drawing is two circuits, before we get confused!

 

[Guest123]

MCG, can be got from CEF.

 

[Rockingit]

And no sooner do I post - found one from Schneider, as well!

 

[Spoon]

A remote triggered disconnecting MCB - now wouldn't THAT be a good idea?!

We have asked our customers to supply shunt-trip MCB's in their main dist boards but I dont know where they purchase them from.

 

[Rockingit]

D'oh!! I've been a right turnip on this one! Talk about over-engineering a solution. I've got a Hager board, they make nice little shunt trip auxilliaries that interface via a flag indicator, have local reset on them, and even have a set of complimentary n/o and n/c contact that can be used to open the motorised emergency gates.

I reckon I owe you all a beer as that's just made me a heap of dosh as the customer had signed off a much more intricate and expensive solution!!

 

[Spoon]

Glad to help out mate.