This 4-Channel Relay Module is designed for reliable switching of high-voltage and high-current loads. Featuring optocoupler isolation, it ensures safe and stable operation with microcontrollers like Arduino, ESP32, NodeMCU, and Raspberry Pi. Ideal for industrial automation, smart home applications, and educational robotics
⭐ High-Performance Relay Board
- Supports AC 250V/10A & DC 30V/10A loads
• 4 independent channels for multi-device control
⭐ Safe Optocoupler Isolation
- Protects microcontroller from high-voltage spikes
• Ensures reliable switching & long lifespan
⭐ Wide Compatibility
- Works with Arduino, ESP32, Raspberry Pi, AVR, PIC, ARM
• Suitable for IoT, DIY electronics, automation systems
⭐ Dual Signal Triggering
- Supports both LOW-level trigger & HIGH-level trigger
• Easy integration with any microcontroller
⭐ Industrial & Smart Home Use
- Control lights, fans, motors, pumps, solenoids, appliances
• Ideal for automation panels & smart home switches
Technical Specifications:
-
- Relay Channels: 4
- Operating Voltage: 5V / 12V (choose variant)
- Trigger Voltage: 3.3V / 5V compatible
- Output Load: AC 250V / 10A, DC 30V / 10A
- Isolation: Optocoupler-based
- Indicator LEDs: Channel status LEDs
- Interface Pins: VCC, GND, IN1, IN2, IN3, IN4
- Mounting: Pre-drilled holes
- Dimensions (L×B×H): approx 75 × 55 × 18 mm
- Weight: approx 60–80 g (varies by variant)
