The 5V 30A 1-Channel Relay Module is a high-power switching module designed to control large electrical loads using low-power control signals. It features optocoupler isolation, which enhances safety and protects sensitive control circuits from high-voltage spikes and electrical noise.This is an easy-to-use 1-channel relay board that operates on 5V. Use it to control one 240V power appliance directly from microcontrollers or low-voltage circuits. Perfect for switching high-power 240V appliances - lights, fans, etc, and even high-power motors at lower voltages.

Key Features:

•  High Power Switching: Supports up to 30A at 250V AC, making it suitable for heavy-duty applications.
•  Optocoupler Isolation: Ensures electrical separation between the control circuit and the relay, reducing interference and protecting the microcontroller.
•  Wide Compatibility: Works with 5V DC control systems, including industrial controllers, sensors, and automation devices.
•  LED Indicators: Built-in LED indicators provide visual feedback for power and relay operation.
•  Durable and Reliable: Features a high-quality relay with long lifespan and strong mechanical contacts.
•  Protection Circuitry: Includes a flyback diode to protect against voltage spikes from the relay coil.
• The onboard jumper can set the module's high-level or low-level trigger input

Module interface specifications:

• DC+: DC power supply positive pole
• DC-: DC power supply negative pole
• IN: signal triggering pin
• JD+: relay control voltage positive
• JD-: relay control voltage negative
• DC+ and JD+ shorted by jumper cap, DC- and JD- shorted with jumper cap, it is the same voltage between the trigger terminal and relay control terminal
• High and low-level trigger mode selection. Jumper and L pin connection, IN pin, is a low-level triggerJumper and H pin connection, IN pin, is a high-level trigger
• Normally closed pin (NC): relay normally closed pin
• Common pin (COM): relay common pin
• Normally opened pin (NO): relay normally opened pin