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WYLEX 40A SP Type B Curve MCB

Product Code: 77992

Modern alternative to fuses for Wylex Standard Consumer Units. Single pole, 230V AC, B curve, 3kA MCBs. BS EN 60898.

Product contents:
40A Type B plug-in style MCB.

Type B curve. Short circuit 6kA. BS EN 60898.



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Rated 4 out of 5 by Replacement fuse Used to protect a shower circuit. Easy to fit, took only a few minutes to swap over. One problem was that the fuse board cover wouldn't fit back over the new fuse because it is bigger than the old one, so I had to doctor the cover to make it fit. Other than that, no problems at all. 28 Sep 2015
Rated 4 out of 5 by easy upgrade so easy to install .Updated my parents fuse box as they are getting older and harder to do things themselves like replace fuse wire in the middle of the night. makes their life so much easier 3 Sep 2015
Rated 5 out of 5 by A staright foreward upgrade A nice easy upgrade from older wired fuses. I used the one I purchased to install a fresh circuit for a 9.5Kw shower. Literally a 10 minute task (I have limited mobility). Power off. Two screws to remove the front of the fuse box. One screw to remove the redundant (and unused 15amp fuse holder). Six screws (two per cable) to secure the cables for the new circuit. One screw to install the new MCB holder. A quick re-check and circuit safety check.Two screws to replace the fuse box cover & then slip in the MCB and it was all done. 23 Jul 2015
Rated 5 out of 5 by circuit breaker simple to install fits perfectly into existing consumer unit competitive price 15 Apr 2015
  • 2015-11-30 T09:51:01.820-06:00
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Amp Rating 40 A
Brand Wylex
Model No SFB40
Pack Size 1
Total Product Weight 79 kg