4-Channel 12V Relay Module with Optocoupler Isolation

The 4-Channel 12V Relay Module with Optocoupler Isolation is an industrial-grade switching board designed to safely control high-power devices using low-voltage microcontroller signals. Equipped with premium 12V relays and dedicated SMD opto-isolators, this module completely protects your delicate logic circuits from voltage spikes and electromagnetic interference. Whether you are engineering an automated hardware system, a smart home setup, or driving heavy solenoids, this board ensures highly reliable operation. If you need to buy online in India to secure your high-voltage switching requirements, this module is the perfect fit.

This versatile relay board is fully ESP32 compatible, and it works flawlessly with Arduino, ESP8266, and other common 3.3V/5V logic microcontrollers. It features jumper-selectable high and low-level triggering for each independent channel, offering immense flexibility when designing your circuit diagram and writing your Arduino code. It is an essential component for controlling AC appliances, DC motors, and mechanical actuators in complex automated environments.

Features:

• Independent Channels: 4 distinct relay channels, each with a dedicated LED status indicator.
• Operating Voltage: Requires a stable 12V DC power supply for reliable relay coil actuation.
• Optocoupler Isolation: Built-in optical isolators provide complete electrical separation between the logic inputs and high-voltage outputs.
• Adjustable Trigger Modes: Jumper pins allow the selection of either High-Level or Low-Level triggering for each individual relay.
• High Switching Capacity: Each relay can comfortably handle up to 10A at 250VAC or 10A at 30VDC.
• Robust Connectivity: Uses standard heavy-duty screw terminals for high-power connections and 0.1" header pins for simple logic interfacing.

Package Includes:

1 x 4-Channel 12V Relay Module with Optocoupler Isolation