The Hager Sollysta WMDP84 is a 20A double pole switch in glossy white from Hager's Sollysta white moulded wiring accessories range. It is a 1 gang switch that breaks both live and neutral, making it a practical local isolator for fixed appliances such as water heaters, electric boilers and immersion heaters.
Built to BS EN 60669-1, it supplies a complete 86 x 86 mm plate for flush mounting, with upward-facing, clearly marked terminals and a shallow 21.9 mm built-in depth that leaves more room for cable terminations in the back box.
Double Pole
Breaks live and neutral
IP20
Indoor dry locations
Safety and regulations
Isolate the supply at the consumer unit before installation. Installation must be carried out by a competent person in accordance with BS 7671 and Part P of the Building Regulations. Check that the connected load does not exceed the 20 A rating and that the circuit cable and protective device are correctly sized.
Part code and indicator version
This listing is the standard WMDP84 switch. Hager also lists a separate version with LED indicator, part code WMDP84N. If your installation specifically needs a neon or LED indicator, confirm and order the WMDP84N variant.
Sollysta range
Part of the Hager Sollysta range, designed for fast installation with shallow back projection, captive terminal screws and clear terminal labelling.
Key features
Double pole isolation
Switches both live and neutral on a single 20A rated gang, giving positive disconnection of fixed appliances.
Shallow build
Only 21.9 mm built-in depth on a 86 x 86 mm plate, so there is more cabling space behind the faceplate.
Easy terminations
Upward-facing terminals with clearly printed terminal markings make wiring quicker and reduce errors.
High terminal capacity
Each terminal accepts 2 x 6 mm² conductors, handling heavier appliance cables with ease.
Fast-fix cable clamp
A single screw fast-fix clamp secures flexible cord up to 1.5 mm².
Fixings included
Supplied with M3.5 x 30 mm fixing screws. Moulded in glossy white urea formaldehyde that matches the Sollysta range.
Technical specifications
General
Range
Sollysta white moulded
Description
20A double pole switch
Electrical
Mechanical
Mounting
Flush mounting, screw fixing
Plate dimensions
86 x 86 mm
Material
Urea formaldehyde
Colour and finish
White, glossy
Terminal capacity
2 x 6 mm² per terminal
Flex cable clamp
Single screw fast-fix, up to 1.5 mm² flexible cord
Fixing screws
M3.5 x 30 mm
Compliance
Frequently asked questions
What is the difference between the WMDP84 and WMDP84N?
The WMDP84N is the version Hager lists with an LED indicator. Choose it if you need a visible on indication; otherwise this standard WMDP84 is the plain 20A double pole switch.
Is this switch suitable for isolating a boiler or immersion heater?
It is a 20A double pole switch designed for fixed appliances, and breaks both live and neutral. Make sure the appliance load is within 20 A and that the circuit is designed and installed to BS 7671 by a competent person.
What cable sizes can the terminals take?
Each terminal has a capacity of 2 x 6 mm² conductors. The built-in fast-fix cable clamp accommodates flexible cord up to 1.5 mm².
Can I use it outdoors?
No. The switch is rated IP20, so it is intended for indoor dry locations only. Use a suitably rated enclosure or accessory for damp or outdoor areas.
What is included in the box?
The switch with its full 86 x 86 mm cover plate and M3.5 x 30 mm fixing screws.