Sensors & Modules
4 Channel Relay module
₹205.00
Price inclusive of GST (18.00%)
- Weight
- 62 g
- Length
- 7.40 cm
- Breadth
- 5.50 cm
- Height
- 1.90 cm
The 4 Channel Relay Module is a multi-channel switching board that allows microcontrollers to safely control up to four high-voltage AC or DC devices independently. It is ideal for home automation, industrial control, robotics, and IoT applications.
The 4 Channel Relay Module features four high-quality 5V electromagnetic relays, each capable of switching high-current AC or DC loads using low-voltage control signals from a microcontroller. Each channel includes a dedicated driver circuit, status LED, flyback protection, and, on many models, optocoupler isolation for enhanced safety and reliability.
The module allows four independent devices-such as lights, fans, pumps, motors, solenoid valves, or home appliances-to be controlled simultaneously. Screw terminals provide secure wiring for the load connections, while a standard control header makes interfacing with Arduino, ESP8266, ESP32, Raspberry Pi, STM32, AVR, PIC, and other development boards simple and convenient.
This relay module is widely used in smart home systems, industrial automation, remote switching, security systems, and DIY electronics projects.
Dimensions & weight
- Weight
- 62 g
- Length
- 7.40 cm
- Breadth
- 5.50 cm
- Height
- 1.90 cm
Technical specifications
| Parameter | Value |
|---|---|
| Module Type | 4 Channel Relay Module |
| Relay Type | SPDT (Single Pole Double Throw) |
| Number of Channels | 4 |
| Relay Coil Voltage | 5V DC |
| Operating Voltage | 5V DC |
| Trigger Signal | TTL Compatible (3.3V–5V) |
| Maximum Switching Voltage (AC) | 250V AC |
| Maximum Switching Voltage (DC) | 30V DC |
| Maximum Switching Current | 10A per channel |
| Relay Contacts | NO (Normally Open), COM (Common), NC (Normally Closed) |
| Isolation | Optocoupler (available on most models) |
| Indicators | Power LED and 4 Relay Status LEDs |
| Input Interface | VCC, GND, IN1, IN2, IN3, IN4 |
| Output Interface | Screw Terminal Blocks |
| Compatible Boards | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, AVR, PIC |