Electric Shower Fuse / RCD


Old 08-14-19, 01:34 PM
quirkyjake's Avatar
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Talking Electric Shower Fuse / RCD

I am looking to replace my electric shower with a newer slightly more powerful shower. The current unit is 8.5kw, I am looking to swap out for a 9.5kW. From some basic research I am under the impression that to increase the power draw I need to check the following, but have some queries;
  • Cable size; this is a grey cable (see photo), unsure of internal wire specification. This appears relatively standard so hopefully would be okay for a slight power increase?
  • Isolator; ceiling mounted pull cord with neon fuse, unknown rating (see photo). When I know what this 'should' be, I will probably purchase a new fuse to be sure of the rating.
  • RCD on consumer unit; there is a separate RCD for this circuit already (see photo), unknown rating. Reference numbers: B40 - 6M1B40. Not sure whether this would be acceptable for this shower?
Some other information that may be of use;
  • Current shower is a Redring Active 3205 8.5kw
  • New shower is a Mira Sprint 9.5kW
  • The new shower is supposedly an easy fit from an installation perspective, but ensuring this remains safe is paramount.
Any guidance would be greatly appreciated.

Many Thanks
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