
Best selling Relays
Here you’ll find the best-selling products in the Relays category. The ranking is primarily based on sales volume, while also taking factors such as availability, price trends, and overall customer relevance into account. For each product, we provide a short description and the most important insights from customer reviews so you can quickly compare the most popular options. This page always stays fresh and updates automatically.
1. Shelly Pro 2PM
The Shelly Pro 2PM is a 2-channel Wi-Fi relay with precise power measurement designed for mounting on DIN rails, such as in a fuse box. Thanks to the Bluetooth connection, Shelly Pro devices can be easily configured and integrated into the Wi-Fi network using the Shelly app. If Wi-Fi is not available, the Shelly can also be directly connected to a switch via a LAN network cable.
Features of the Shelly Pro 2PM WiFi Switch:
- Easy to mount on a DIN rail.
- Shelly Pro Line supports mjS scripts.
- 2x 16A switching output with precise power measurement (maximum 25A total).
- Equipped with temperature, overload, and overvoltage protection.
- Features Wi-Fi, LAN, and Bluetooth interfaces.
- No HUB required; connect the Shelly directly to your home Wi-Fi or LAN.
- Compatible with Android, iOS, Amazon Alexa, Home Assistant, MQTT, openHAB, and Google Assistant.
- With the Shelly Cloud app, you can turn devices on and off via your smartphone or tablet.
- Shelly has a built-in web interface that allows you to turn the Shelly on and off, make settings, or perform an OTA update.
- The Shelly has an integrated weekly timer that allows you to set on and off times based on time and day.
- Shelly knows your location, enabling control over your lights based on sunrise and sunset throughout the year.
Technical Details:
- Manufacturer: Allterco
- Type: Shelly Pro 2PM
- Number of Channels: 2
- Load per Channel: 16A
- Maximum Total Load: 25A
- Operating Voltage: 110-230V 50/60Hz AC
- Power Consumption: <3W
- Range (depending on the environment): 50m outdoor / 30m indoor
- WiFi Protocol: WiFi 802.11 b/g/n
- WiFi Frequency: 2412 to 2484MHz
- LAN Interface: Yes
- Bluetooth: Yes
- Power Measurement: Yes
- Temperature Protection: Yes
- Overload Protection: Yes
- Dimensions: 89.5 x 18.5 x 68.5mm
- Weight: xxg
Delivery Contents:
- 1x Shelly Pro 2PM WiFi Switch.

2. Shelly Pro 1PM
The Shelly Pro 1PM is a DIN rail-mounted multi-switch with measurement functionality. It can be used with Wi-Fi, LAN, and Bluetooth connections. This intelligent device with precise power management is perfect for home and building automation. The relay is mounted on a DIN rail in your electrical panel. The Shelly Pro 1PM offers advanced security features and is compatible with most common home automation platforms.
The Shelly Pro 1PM is suitable for controlling and measuring the consumption of lighting, appliances, pool systems, heating, and much more. The relay is equipped with temperature, overload, and surge protection to enable complete smart automation without additional cables or wiring. The Shelly Pro 1PM is ideal for apartments, offices, shops, businesses, and production facilities, as well as for new constructions.
Use your preferred voice assistant to control the Shelly Pro 1PM. The Shelly Pro 1PM is compatible with most popular voice assistants.
You can control the Shelly Pro 1PM directly through the Shelly Cloud App – no additional hub required. Manage and control your home or facility, set scenes and schedules, and adjust settings from anywhere – via cloud access or just through the local network.
Power Supply: 110-230 V ±10% 50/60 Hz AC
Maximum Load: 16 A (1 output)
Operating Temperature: 0°C to 40°C
Wireless/Wi-Fi: Protocol 802.11 b/g/n (2.4 GHz)
Electrical Consumption: < 4 W
Control via REST, CoAP, and MQTT
LAN Connection: Enhanced with LAN connection for an even more stable connection.
Shutter Mode: Requires an upcoming firmware update for the device.
DIN Rail Mountable
Device Heat Protection: Yes
Overload Protection: Yes
Power Measurement: Yes
Integrated On/Off Switch: Yes.

3. Shelly Pro Dimmer 2PM
Shelly Pro Dimmer 2PM is a DIN rail mountable, intelligent two-channel dimmer with power monitoring. Use it to control, dim, and measure the power of a wide range of halogen lamps and dimmable LEDs.
Power supply
110-240 V ~50/60 Hz
Power consumption
2 W
Max. output power
200 W
Wi-Fi connectivity
802.11 b/g/n
Wi-Fi RF bandwidth
2401-2483 MHz
Max Wi-Fi RF power
20 dBm
Wi-Fi range
Up to 30 m indoors / up to 50 m outdoors
Bluetooth version
4.2
Bluetooth RF band
2400-2483.5 MHz
Max Bluetooth RF power
4 dBm
Bluetooth range
Up to 10 m indoors / up to 30 m outdoors
CPU
ESP32-D0WDQ6
Flash memory
8 MB
Max. number of schedules
20
Operating temperature
From -20°C to 40°C
Operating ambient humidity

4. Schalk TDS U1 DALI touch dimmer control unit
Compact, easy-to-install DALI-2 certified control unit with integrated DALI bus power supply for converting button commands into DALI protocols in broadcast mode. Short press for on/off, long press for dimming up and down. Suitable for light sources with dimmable DALI ballast. The integrated power supply can support up to 35 DALI devices. No DALI programming device required. Dimensions: 43 x 43 x 18 mm, 230 V AC.

5. Hager Staircase lighting timer
The EMN001 stair light timer is a stair light timer with low switching noise. It is designed to automatically turn on the lighting and recognizes 3- or 4-wire connections for subsequent activation. The device features a manual switch for automatic or permanent lighting options.

6. Aqara DCM-K01
The Aqara Dual Relay Module T2 is a versatile relay module that allows for efficient control of your electrical devices. With two independent channels, you can control two different devices simultaneously and independently. The module supports both wired and wireless connections via ZigBee 3.0 and is compatible with most smart home systems. Control is conveniently done through the Aqara app or via voice command with Amazon Alexa or Google Assistant. Additionally, the module features integrated energy monitoring, which tracks the power consumption of your devices and helps you save energy. Installation is easy and secure, and the module is designed for long-term use.
Highlights:
- Two independent channels for controlling two devices
- Compatible with Amazon Alexa and Google Assistant for voice control
- Integrated energy monitoring to track power consumption.

7. Shelly Pro Dimmer 1PM
Shelly Pro Dimmer 1PM is a DIN rail mountable, intelligent single-channel dimmer with power monitoring. Use it to control, dim, and measure the power of a wide range of halogen lamps and dimmable LEDs.

8. Eltako ER12-001-UC
Wechsler potential-free 16A 250V AC, 230V LED lamps up to 200W, incandescent lamps 2000W. No standby loss. Rail-mounted device for installation on DIN-EN60715 TH35 mounting rails. Division unit 18mm wide, 58mm deep. State-of-the-art hybrid technology combines the advantages of wear-free electronic control with the high performance of special relays. Universal control voltage 8..230V UC. Low switching noise. Control indication with LED. Integrated freewheeling suppression diode A1=, A2= -. Safe isolation according to VDE 0106, part 101, therefore also usable as a coupling relay. By using a bistable relay, there is no coil loss and no heating even when switched on. The relay contact can be open or closed during commissioning and will synchronize on the first actuation. This relay is not suitable for feedback with the switching voltage of a dimmer switch. For this purpose, only the relays ESR12DDX-UC, ESR12NP-230VUC, or ESR61NP-230VUC should be used. The electronics have no independent power supply and therefore no standby loss. Only when the control contact is closed is the microcontroller activated, which switches the bistable relay in the correct direction. When the control contact is opened or the control voltage drops, it switches back. ER12-001-UC.

9. Celduc relay Solid state relay SGTA4650 1 pc.
Celduc® relay Solid state relay SGTA4650 1pc.

10. Eltako Treppenlicht-Zeitschalter TLZ12D-plus
NO contact not potential-free 16 A/250 V AC, incandescent lamps up to 2300 W, ESL and LED lamps up to 200 W. Control voltage 230 V and/or 8. 230 V UC. Switch-off pre-warning and permanent push-button light can be switched on. Standby loss only 0.5 W. With ESL optimisation and multifunction. DIN rail mounting device for DIN-EN 60715 TH35 mounting rail installation. 1 unit = 18 mm wide, 58 mm deep. The functions and times are entered using the MODE and SET buttons in accordance with the operating instructions and shown digitally on the LC display. A key lock is possible. Contact switching in zero crossing to protect the contacts and lamps. This extends the service life of energy-saving lamps in particular. The noiseless electronics do not bother the most sensitive ear - in contrast to many synchronous motors with mechanical gears. Thanks to the use of a bistable relay, there is no coil power loss or heating even when switched on. After installation, wait for the short automatic synchronisation before connecting the switched load to the mains. Control, supply and switching voltage 230 V. Additionally with galvanically isolated universal control voltage 8. 230 V UC. For 3- and 4-wire circuits, can be switched downstream, with roof lighting for 4-wire circuits. Automatic detection of the circuit type. Glow lamp current up to 50 mA, depending on the ignition voltage of the glow lamps. Precise time setting from 1 to 99 minutes. Dedicated continuous light button with protruding SET button in the TLZ, ESV, ES and ER functions. With motion detector control input BM, which converts the input signal into a control pulse in the TLZ function. The push-button permanent light function is not active here. After a power failure in the TLZ function setting, the lighting is switched on again if the time lapse has not yet ended. The time lapse is shown in the centre of the display.
