Yes they are in a mode dimmer pack 18 of them, they seem quite popular in dimmer packs.
Yours are 271 do you know what is the difference ,I think mine are 6000 rather than your 10000 although they look the same.
Are the nsb still about,do they do a C10, I got a proteus temporary , but I had to cut a slot to fit the busbar up into it.
But not happy with that.
I would like to get the abb, but if not I will change the bank of six on one phase with them to look neater.
It was strange really , they bashed it in a pub breaking the side bit that holds the toggle.
Although the only bit exposed appeared to be the metal toggle hinge ,it somehow shorted to the cover.
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