Breaker for generator

Buster1 · Aug 19, 2022

I have just bought a generator for back up power. Honda EM4500 and has both 110v and 230v outputs.
The circuit breaker for the 230v is snapped and when looking up the part number 38220-ZR7-F21 19a breaker it’s coming up between 60-90£ And mainly shipped from overseas. Can anyone recommend an alternative that I can buy locally and doesn’t cost more than buying a whole new generator instead.

Rockingit · Aug 19, 2022

I just found one on Amazon for £11.99 in about 10 secs.....

sourcingmap DZ47-63 C16 16A AC 400V Two Pole Mini Circuit Breaker - Grey : Amazon.co.uk: DIY & Tools

Shop sourcingmap DZ47-63 C16 16A AC 400V Two Pole Mini Circuit Breaker - Grey. Free delivery on eligible orders of £20 or more.

www.amazon.co.uk

It's just a standard Double Pole C16 MCB, theoretically any DP C16 will do as a replacement although you might have an easier time fitting an exact like-like.

Buster1 · Aug 19, 2022

Great thanks, I have just ordered. The manufacturer was trying to convince me I had to get the exact same part which I why I wanted to ask the experts 1st.

Rockingit · Aug 19, 2022

That said..... Looking at the damaged case it seems more likely it was an RCBO.

westward10 · Aug 19, 2022

The schematic indicates an mcb but the link bar and one of the toggles is missing.

timhoward · Aug 19, 2022

Rockingit said:
That said..... Looking at the damaged case it seems more likely it was an RCBO.

I think it was two identical switches that had a bar or link across them

loz2754 · Aug 19, 2022

Rockingit said:
That said..... Looking at the damaged case it seems more likely it was an RCBO.

Nope. The diagram on the front shows it's an MCB.

Rockingit · Aug 19, 2022

westward10 said:
The schematic indicates an mcb but the link bar and one of the toggles is missing.

Agreed - was what I first looked at. I just wondered by the very 'square' damage above the missing toggle and the internal lever beneath if a test button had once been there and an additional diagram missing.

timhoward · Aug 19, 2022

My understanding is that it's also a small portable generator, so IT, so RCBO wouldn't work anyway as there's no connection between either terminal and earth?