Zemismart Zigbee Akıllı Termosifon Anahtarı – Su Isıtıcılar için 30 A Cam Dokunmatik Anahtar (ZN-RSRL1E)

Please note: this is a mains-wired switch for a qualified electrician to install. It needs a neutral wire and a Tuya Zigbee hub (not included). For UK immersion heaters, keep a double-pole isolator in the circuit as well. Your electrician will advise.

Put your immersion heater on a smart timer

The Zemismart 30A Zigbee switch turns an immersion heater or electric water heater on and off from the wall, your phone, your voice or a schedule. Heat water only when you need it, for example for an hour before the morning shower and again in the evening. You can also switch it on from the app when you’re on your way home.

The 86 × 86mm glass plate is the same size as a standard UK single switch, so it fits a UK back box.

Rated for high-power loads

Most smart switches are made for lighting and handle only a few amps. This one is rated at 30A, so it suits high-power resistive loads such as a typical 3kW immersion heater (about 13A at 230V). It can also switch lights, if you prefer.

App, voice and touch control

• Touch: tap the glass panel. A blue ring shows the switch is ready.
• App: control it from anywhere in the Tuya Smart or Smart Life app.
• Voice: link the app to Amazon Alexa or Google Home, then say “Alexa, turn on the immersion”.
• Timers: set daily schedules or a countdown, so the heater switches itself off.

Zigbee, through your hub

The switch connects to a Tuya Zigbee hub, and the hub connects to your router. Zigbee is a low-power mesh network, so the switch doesn’t add to the load on your WiFi. Mains-powered Zigbee devices like this one can also act as a router for battery sensors nearby.

Indicator and power-on settings

In the app, you can turn the indicator light on or off. You can also choose what the switch does after a power cut: stay off, turn on, or go back to its last state. For a water heater, “stay off” is usually the safest choice.

Installation

The switch has live in, live out, neutral in and neutral out terminals. The heater’s live and neutral connect to the “out” side. Turn off the power at the consumer unit first, and have a qualified electrician fit it.

Works well with

• Zigbee wireless scene switch (ZB-L04C), a stick-on button for a “boost” scene elsewhere in the house
• Zemismart Zigbee hub (required)
• Matter touch light switch (ZM202) in the same glass style for your lights
• See what your immersion costs with our Zigbee energy monitor.

Specifications

What’s in the box

• 1 × Zigbee 30A touch switch
• Fixing screws
• User manual

The Zigbee hub is sold separately.

Frequently asked questions

Can I use it on my immersion heater?

Yes. It’s rated at 30A, well above a typical 3kW immersion (about 13A). Have an electrician fit it and keep a double-pole isolator for the heater.

Will it fit a UK back box?

Yes. The plate is 86 × 86mm, the UK single switch size, and the body is 25mm deep. A 35mm box gives more room for heavier heater cable.

Do I need a neutral wire?

Yes. The switch needs live and neutral.

Do I need a hub?

Yes. It needs a Tuya-compatible Zigbee hub.

Can I use it for an electric shower?

No. Most UK electric showers draw more than 30A and need their own dedicated pull-cord isolator.

Can it go in a bathroom?

Not inside the bathroom zones around a bath or shower. Fit it outside the bathroom, for example on the landing or in the airing cupboard. Your electrician will know the rules for your room.

Will it keep working if the internet goes down?

Touch control on the panel works without the internet. The app, voice control and schedules need the hub online.