


⚡ Switch to safety and style — power your home with confidence!
The Crabtree 4015/31 Water Heater Switch is a 20 amp double pole switch designed for safe and reliable control of immersion heaters. With a sleek white or gray finish, it offers easy installation for trained professionals and durable performance, making it a trusted upgrade for homes since 1969.
| ASIN | B005EN0K2G |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 67,329 in DIY & Tools ( See Top 100 in DIY & Tools ) 780 in Switches & Dimmers |
| Colour | White or Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (161) |
| Date First Available | 16 Mar. 2022 |
| Item Package Quantity | 1 |
| Item Weight | 110 g |
| Item model number | JN14 |
| Manufacturer | Crabtree |
| Package Dimensions | 9.7 x 8.7 x 3.2 cm; 110 g |
| Part Number | 0542870 |
| Switch Type | 2-way |
| Wattage | 460 watts |
M**R
Quality product that should only be fitted by a competent person
I purchased this to replace an old item that had been in use since the house was built in 1969. It is easy to install but should not be carried out if you are not competent concerning the safe fitting of electrical items. Of course, it is essential that the mains supply is cut off to fit this switch. You must have an electrical detector that gives a warning sound when electricity is present so you can check to know for sure if the electricity supply is off and the fitting is safe to work on. They are reasonably cheap to buy. I was trained in electronics and electricity so am competent and fitted lots of electrical items in a safe manner over the years. I would not want to undertake this if I had not been taught about electricity. It is better then to get an electrician to fit this for safety. The switch quality is good and fitted nicely in place of my old one. it fulfills its function of switching off the supply to an immersion heater.
R**T
Water Heater switch.
Works and looks ok.
M**Y
Switch is good
Nice switch , easy to install
M**N
Good Looking Switch
Previous wi fi switch burnt out so have gone back to a conventional switch. Hopefully this wont go up in a puff of smoke. Good to have Immersion Heater printed on the switch too.
S**2
Excellent replacement. Would buy again.
Needed this to replace the broken switch for our immersion heat element for the hot water cylinder. Was perfect. Would def recommend.
I**A
Perfect
Works very well
T**G
Water heater switch.
Easy to install & is working perfectly.
T**L
It broke before use!
Unfortunately when I carefully tried to remove the tab for the cable entry, the whole corner shattered off as has happened to others. This item is not fit for purpose considering the safety standard needed for such a product. I’ll pay more attention to reviews in future.