⚡ Switch to smarter water heating — power and control in your hands!
The Crabtree 4015/31 Water Heater Switch is a 20 amp double pole, 2-way switch designed for efficient and safe control of water heaters. Compact and lightweight at 110 grams, it offers reliable performance backed by Crabtree’s trusted manufacturing standards.
| Manufacturer | Crabtree |
| Part Number | 0542870 |
| Package Dimensions | 9.7 x 8.7 x 3.2 cm; 110 g |
| Item model number | JN14 |
| Colour | White or Gray |
| Wattage | 4.6E+2 |
| Item Package Quantity | 1 |
| Switch Type | 2-way |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 110 g |
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.
C**D
Lasting Well
Still going strong after a year; though the neon light has faded quite a bit.
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.
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.
R**N
Immersion switch
Cheap and easy to install , so far no complaints
E**.
Easy to fit
Done the job
Trustpilot
2 weeks ago
1 week ago
