Power Relay Module 30A 1 ch

The Power Relay Module 30A is a 1-channel relay board with a heavy-duty relay whose contacts are rated up to 30 A. A low-power signal from an Arduino, ESP32 or other controller switches the relay, which then turns a high-current load on or off, such as a water heater, pump, motor or large lighting circuit. It is widely used in home automation, workshop control and solar or battery systems.

Power Relay Module 30A Specifications

• Channels: 1
• Contact rating: up to 30 A (check the voltage ratings printed on the relay)
• Load contacts: COM, NO (normally open) and NC (normally closed) screw terminals
• Control: signal input from a microcontroller pin
• Coil voltage: depends on the version, printed on the relay

Power Relay Module 30A Applications

• Switching water heaters, boilers and pumps
• Motor and compressor on/off control
• Home automation with Arduino, ESP32 or ESP8266
• Solar, battery and generator changeover projects
• Workshop and industrial automation

What's in the Box

• 1 × 30 A 1-channel power relay module

Tip: Power the module with the coil voltage printed on the relay. For mains loads, use wire thick enough for the current, keep the high-voltage side in a closed enclosure, and for motors or heaters stay well below 30 A to allow for start-up surges.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.