
Best selling Relays
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Shelly Pro Dimmer 2PM
Shelly Pro Dimmer 2PM is a DIN rail mountable, intelligent dual-channel dimmer with power monitoring. Use it to control, dim, and measure the power of a wide range of halogen lamps and dimmable LEDs.

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 smart 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 popular 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—without the need for an additional hub. 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
Heat protection for the device: Yes
Overload protection: Yes
Power measurement: Yes
Integrated on/off switch: Yes.

3. Eaton Safety relay
The ESR5-NO-41-24VAC-DC safety relay from Eaton is a reliable device designed to implement basic safety functions such as emergency stop, emergency stop and safety gates. It operates in single-channel mode and is compatible with a supply voltage of 24VDC as well as 24VAC at 50/60Hz. The relay offers four enabling current paths that meet the requirements of IEC/EN 60204 stop category 0, as well as a signalling current path. The contact protection is certified to EN 50274, which means that it is finger and back-of-hand safe when operated vertically from the front. The device is suitable for safety category PL c, Cat. 1 according to EN ISO 13849-1 as well as for SILCL 1 according to IEC 62061 and SIL 1 according to IEC 61508. The use of fault exclusions is required to achieve safety category PL e. With a compact design and robust construction, this safety relay is ideal for industrial applications where safety and reliability are of paramount importance. Single-channel operation for basic safety functions. Four enable current paths in accordance with IEC/EN 60204 stop category 0. Touch protection in accordance with EN 50274, finger and back-of-hand safe. Suitable for PL c, Cat. 1 according to EN ISO 13849-1, SILCL 1 according to IEC 62061 and SIL 1 according to IEC 61508.

4. Shelly Pro 2PM
The Shelly Pro 2PM is a 2-channel WiFi 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 WiFi network using the Shelly app. If no WiFi is available, the Shelly can also be connected directly to a switch via a LAN network cable.
Features of the Shelly Pro 2PM WiFi Switch:
- Easily mountable on DIN rail.
- Shelly Pro Line supports mjS scripts.
- 2x 16A switching output with precise power measurement (maximum 25A total).
- Equipped with temperature, overload, and surge protection.
- Features WiFi, LAN, and Bluetooth interfaces.
- No HUB required; connect the Shelly directly to your home WiFi 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 it 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
Included in the package:
- 1x Shelly Pro 2PM WiFi Switch.

5. ABB Inst. contactor 230V 20A 2S/0OE hum-free ESB20-20N-06
ABB Stotz S&J Installation Contactor ESB20-20N-06
Manufacturer: ABB Stotz S&J
Designation: Installation Contactor 20A 230V AC/DC
Type: ESB20-20N-06
Rated Operating Voltage: 220-250 V
Rated Operating Current: 20 A
Usage Category: 7
Rated Control Voltage: 230 V
Type of Operating Voltage: AC/DC
Type of Control Voltage: AC/DC
Number of Contacts as Normally Open: 2
Manual Control Switch: No
Width in Division Units: 1
Installation Depth: 58 mm
Additional Devices Possible: Yes
With Day/Night Function: No
Hum-Free: Yes
Protection Class (IP): IP20
The ABB Stotz S&J Installation Contactor ESB20-20N-06 is a 2-pole contactor with a width of 18 mm, designed to control single-phase loads up to 20 A. It is available in various contact configurations and coil voltages, making it suitable for switching electric heating devices, water heaters, motors for pumps, ventilation, and other drives, as well as lighting. Thanks to an integrated coil circuit, it operates with both AC and DC control voltages, ensuring it is completely hum-free and quiet during switching. The devices can be arranged side by side without any spacing. An auxiliary switch, which can be mounted on the left side as an accessory, complements the range. The ESB20-N series features an installation design and complies with the household standard EN61095, making it particularly suitable for panel installation.

6. Shelly Qubino Wave PRO 1PM
Wave Pro 1PM is a single-phase 1-channel relay that supports up to 16 A. Equipped with an integrated power meter, Wave Pro 1PM allows you to measure the energy consumption of all automatic lights or heavier devices.

7. Eaton Power contactor DILM9-10(240V50HZ)
The DILM9-10 (240V50HZ) power contactor from Eaton is a high-performance electrical component specifically designed for use in motor applications. With a rated power of up to 4 kW at 380 V and a maximum current of 22 A, this 3-pole contactor provides a reliable solution for non-inductive and lightly inductive loads. It is suitable for various applications, including starting and stopping cage motors, as well as reversing and braking. The robust construction and the use of screw terminals allow for easy installation and maintenance. The contactor is also compatible with motors of efficiency class IE3, making it an environmentally friendly choice. With high switching capacity and the ability to operate under various conditions, the DILM9-10 is an excellent choice for industrial applications.
- Suitable for motors of efficiency class IE3
- Maximum rated operational power of 4 kW at 380 V
- Applicable in various usage categories (AC-1, AC-3, AC-4)
- Easy installation with screw terminals
- Robust construction for reliable operation under various conditions.

8. Finder Contactor 40A 2 NO + 2 NC, 230-240vac/dc
Coil voltage: 240V AC
Contact arrangement: 2-pole changeover contact
Switching current: 40 A
Connection type: Screw
Series: 22 Series
Switching voltage AC max: 440V AC
Application type: Power
Length: 53.5 mm
Depth: 63.1 mm
Height: 91 mm
Dimensions: 53.5 x 63.1 x 95.8 mm
Operating temperature min: -5°C
22.44 and 22.64 series - modular contactors. Finder 22 series 4-pole modular contactors, rail mounted, 4-pole. 40-63 A continuous operation for coil and contacts AC/DC quiescent coil with varistor protection. Protective separation (reinforced insulation) between coil and contacts. Complies with EN 61095:2009 and EN 60947-4-1:2009. 35-mm rail-mount screw terminal. Additional modules available for 22.44 and 22.64.

9. Aqara DCM-K01
The Aqara Dual Relay Module T2 is a versatile relay module that enables 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 simple 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.

10. Eltako Switching relay
Eltako switching relay for series-EB R12-200-12V
Manufacturer: Eltako
Designation: Switching relay for series-EB 2S 16A
Type: R12-200-12V
Function: Other
Mounting type: DIN-rail
Width in units: 1
Installation depth: 55 mm
Number of contacts as normally open: 2
Control voltage 1: 12 V
Control voltage type 1: AC
Frequency of control voltage 1: 50 Hz
Rated current: 16 A
Voltage type of supply voltage: AC
Max. incandescent lamp load: 2300 W
Max. fluorescent lamp load: 2300 VA
Max. fluorescent lamp load (duo circuit): 16 W
Fluorescent lamp load (duo circuit): 2300 VA
Max. fluorescent lamp load (parallel compensated): 2300 W
Fluorescent lamp load (parallel compensated): 500 VA
Max. switching current (cos phi: 0 VA)
Switching current (cos phi: 0.6): 10 A
Eltako switching relay for series-EB R12-200-12V: more details
Electromechanical switching relay with manual override and switch position indicator. Duty cycle 100%. Control power requirement 1.9 W. Contact distance 3 mm. Test voltage contact/contact 2000 V and test voltage control terminals/contact 4000 V.
EAN: 4010312200506.
