MK Masterseal Plus 1 Gang 2-Way Switch Product Code: 67378

IP66. Operates in extreme hot or cold. Manufactured to BS EN 60669: 2000.


  • Fast & Flexible Installation
  • Discolour, Fade & Crack-Resistant
  • All Logic Plus Features
  • IP66


W x D x L: 95 x 55 x 95mm. BS EN 60669:2000.
Additional Information
Technical Specification
  • Brand : MK
  • Product Type : Switch
  • Total Product Weight : 0.234 kg
  • Model No : K56401GRY
  • Colour : Grey
  • Pack Size : 1
  • Manufacturer Guarantee : 20 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Switch and instruction leaflet.
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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€16.95 Incl. 20% VAT

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MK Masterseal Plus 1 Gang 2-Way Switch is rated 4.3 out of 5 by 10.
Rated 5 out of 5 by from Superb Outdoor switch Bought this to replace a inferior product and the difference in quality is noticable.The construction is far better and the sching action is much smoother. The only downside is fiddly terminal screws which are awkward to access. Saying that though i would definitly recommend it. They do say you only get what you pay for and this is worth paying a bit more for.
Date published: 2017-12-26
Rated 5 out of 5 by from Top Notch !! Installed these switches for 14 years, and still haven't had one fail. Three times the price of the competitors, but also three times the quality.
Date published: 2017-11-05
Rated 5 out of 5 by from Best IP rated switches In my experience these are the best IP rated switches, for reliability and fitment. Gasket can be fiddly so make sure it's in the right place.
Date published: 2017-01-28
Rated 3 out of 5 by from Good switch, but....... A well made quality switch, however :- (1) the connector block for the neon indicator (optional) is just about adequate to loop the neutral. (2) I found the terminals small, especially if you need to loop wires. Although fitted ok, and look as if they will last, let down by small connectors/terminals.
Date published: 2017-01-25
Rated 5 out of 5 by from Recommended I've fitted quite a lot of these and in my view, they are the best on the market.
Date published: 2016-12-03
Rated 4 out of 5 by from As good as they come Its a switch, I've fitted 100s of these and would fit no other. Now a tip, you must drill a small hole in the back plate or yes over time they will fill with water. Oh sorry to point out but drill the hole at the bottom and where indicated!!! Now remember this small hole allows a very very small amount of air flow thus preventing condensation. I've had these last 2 years and over 15 years. Someone pointed out by doing this you are reducing the ip rating, well if you want to get a jet wash and point the nozzle directly up the bottom hole you might indeed get a small amount in the box which would then trickle out. You would also be a fool. Nothing seems to last nowadays but these are the best.
Date published: 2016-11-08
Rated 4 out of 5 by from Good quality outdoor switch Does exactly what it says on the tin. Good quality, easy to fit, seems durable and has a very good feel to the switching action. Only been up for a few weeks, so cant really comment on its reliability, but so far so good.
Date published: 2015-04-03
Rated 4 out of 5 by from Weather Proof Switch We use these in wash-down areas. They work well - keep the water out. Would recommend for outdoor use. Remember to use glands.
Date published: 2014-11-06
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