WS-D-EUB-WH-MS is a push-button Wi-Fi switch for compatible water-heater circuits, with app scheduling and remote on/off control.
Confirm the heater's load type and rating, wiring and mounting dimensions. The manufacturer lists a 4000 W rating and a 20 A option, but these do not establish suitability for every load or voltage.
The manual specifies single-pole operation. Its general neutral-wire wording conflicts with the EU physical-switch wiring diagram, which shows neutral input and output. No-neutral installation, dry-contact boiler control and direct replacement of an existing thermostat are not verified. Have the installation requirements checked by a qualified electrician.
Manufacturer water-heater switch manual. Check the EU physical-switch diagram against the supplied model. Technical specifications below apply to this SKU.
Delivery
Tracked delivery in 3–7 working days. Delivery costs are shown at checkout before you pay, and you will receive tracking details as soon as your order ships.
Returns
Changed your mind? You can return items within 14 days of delivery. If anything arrives damaged or faulty, email ukcustomerservice@lumimuse.com with a photo and we will arrange a replacement or refund.
Specifications apply to the selected option and the components listed below.
20A · SKU: WS-D-EUB-WH-MS
| Control protocols | Wi-Fi 2.4 GHz, Bluetooth-assisted setup |
|---|---|
| Input voltage (V) | 100.0–240.0 |
| Supply type | AC |
| Gateway required for basic operation | No |
For compatible single-pole water-heater circuits. Check load type, wiring and mounting dimensions before ordering. The manual's general neutral-wire wording conflicts with its EU physical-switch wiring diagram; a no-neutral installation is not verified. Boiler dry-contact compatibility and UK certification are not established.
Specifications for this option are unavailable. Please confirm the required details before ordering.
Tracked delivery in 3–7 working days.
Change your mind? Return within 14 days of delivery.
Pay safely with major cards, Apple Pay and Shop Pay.
Email ukcustomerservice@lumimuse.com or call +44 7537 127996 (UK).
Delivery costs are shown at checkout before you pay. Any free-delivery offers are shown in the banner at the top of the site.
Orders arrive in 3–7 working days. We send tracking as soon as your order ships.
Email ukcustomerservice@lumimuse.com with your order number and a photo, and we will arrange a replacement or refund. Your statutory rights are not affected.
Yes. You can return items within 14 days of delivery, with no restocking fee. Please return them unused and, where possible, in the original packaging.
