4-Channel 12V Relay Module with Optocoupler

The 4-Channel 12V Relay Module with Optocoupler is a reliable switching board designed to control high-voltage AC and DC devices using a 12V control signal. Each relay supports up to 10A at 250V AC or 30V DC, making it suitable for applications such as home automation, industrial equipment control, motor drivers, and smart device projects.

With optocoupler isolation, the module ensures stable operation and protects sensitive control circuitry from voltage spikes and interference. Each channel includes an LED indicator for relay status monitoring, and screw terminal connectors make wiring secure and convenient.

Features of 4-Channel 12V Relay Module with Optocoupler:

1. 4-channel relay board for switching AC and DC loads
2. Works with 12V DC input trigger signals
3. Relay rating: 10A at 250V AC / 10A at 30V DC
4. Optocoupler isolation for safe and stable control
5. Onboard LEDs for relay status indication
6. Separate JD-VCC and VCC pins for coil and logic power supply
7. Compatible with Arduino, Raspberry Pi, PLCs, and microcontrollers
8. Screw terminals for easy connection of external devices

Specifications of 4-Channel 12V Relay Module with Optocoupler:

• Channels: 4
• Relay Type: JQC-3F-12VDC-C
• Control Voltage (Input): 12V DC
• Trigger Current: ~15–20mA per channel
• Switching Capacity: 10A at 250V AC / 10A at 30V DC
• Isolation: Optocoupler-based
• Operating Temperature: –20°C to +70°C
• Dimensions: Approx. 75 × 55 × 18 mm
• Weight: Approx. 65 g

Package Includes:

1 × 4-Channel 12V Relay Module with Optocoupler