Single module DIN rail GFI

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petersonra said:
there are circuit breakers that incorporate both GFCI and AFCI protection. They are pretty common.

here are some Square D units.

http://products.schneider-electric.us/products-services/electrical-safety-products/

I think you can get an adapter plate to mount them on a DIN rail, at least some of them. The question would be why you would want to do so. It is just not a common thing to do in the US.
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Thanks for your considered reply - unfortunately after designing myself into a tight corner i'm scrambling for a solution. The product is a car charger, the GFCI protection on the single phase input is necessitated by the charging standard (this switchgear is inside the product) and space is tight. I'll check out if i can find an adapter plate that'll do the job.

-Cal
 
tri93 said:
Hi all

I'm using whats called an RCBO in the UK / Australia, which is a combination 10A MCB and 30mA GFPE (RCD) in a single DIN rail module width ( 1P + N ).

http://www.gepowercontrols.com/eu/product_portfolio/residential/residual_current_device/ercbo.html

From my research it seems this is not a common product in the States, but I'm wondering if anyone has come across a similar product with UL approval?

Thanks
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The reason it is not common here is that the rules on GFI breakers are different here, so our products, such as the ones rpeterson showed you, are designed for our rules. 30ma is only allowed for use in machinery, not personnel protection here. We generally do not require what is called "Equipment Ground Fault" protection (also called GFP) like that on small circuits, nor do we usually allow field wiring to be below 14 ga, so breakers under 15A are uncommon as well, then lastly we generally do not switch grounded conductors (Neutral). So a single pole 10A breaker with GFP and a switched neutral would have so few applications here that nobody can afford to bother getting one UL listed.

What you can do here however is use a standard 15A breaker and run 14ga wire, then if you still need your 30ma GF trip for some other reason than personnel protection, put in that RCBO down stream as "supplemental" protection, I think you can find those which will carry a UL1077 listing for that. UL1077 means it cannot be a branch circuit protector, hence the need for the 15A UL489 listed breaker ahead of it. You should also read the NEC rules on switching grounded conductors as well, just to make sure you are OK with what you intend to do.

If what you are after is personnel protection, we limit the trip setting to 6ma. Those devices are called GFCIs, or GFCI Circuit Breakers.
 
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