HIGH-PERFORMANCE 10A RELAY: Operates on a DC 5V working voltage and is capable of switching high-power loads up to a maximum of 10A at 250V AC or 10A at 30V DC. This makes it ideal for controlling a wide range of home appliances and high-current devices with a low voltage signal. FLEXIBLE HIGH/LOW LEVEL TRIGGER: Features a jumper selection that allows you to configure the trigger logic. Set the jumper to 'H' to activate the relay with a high-level signal, or set it to 'L' to activate with a low-level signal, providing enhanced flexibility for your project's control requirements. OPTOCOUPLER ISOLATED CIRCUIT: Equipped with optocoupler isolation for strong driving ability and stable, reliable performance. This isolation protects your microcontroller's delicate I/O ports from high voltage spikes and current from the relay coil, requiring only a 5mA trigger current for safe operation. FAULT-TOLERANT & EASY WIRING: Engineered with a fault-tolerant design, ensuring the relay will not operate if the control line is accidentally broken, preventing unintended activation. All interfaces, including Normally Open (NO), Common (C), and Normally Closed (NC), are accessible via convenient screw terminals for direct, secure wiring. WIDE MICROCONTROLLER COMPATIBILITY: This relay module is broadly compatible with a variety of control platforms, including ARM, PIC, AVR, and other MCU development boards. It's a versatile component for projects involving CNC machines, PS4 modifications, and custom electronics. We provide comprehensive after-sales support: complete digital documentation including user guides and technical references is available through our store customer service, and our support team is ready to assist with installation, programming, and troubleshooting to help you get started quickly.
PACKAGE CONTENTS

4 x 1-Channel 5V Relay Module



SPECIFICATIONS

Working Voltage: DC 5V

Maximum AC Load: 250V / 10A

Maximum DC Load: 30V / 10A

Trigger Current: 5mA

Channel: 1

Isolation: Optocoupler

Triggering: Jumper-selectable High or Low Level

Output Terminals: Normally Open (NO), Common (C), Normally Closed (NC)

Input Terminals: DC+, DC-, IN



USAGE INSTRUCTIONS

1. Connect DC+ and DC- to a stable 5V DC power supply.

2. Connect the IN terminal to a digital I/O port on your microcontroller (e.g., for an AVR or ARM board).

3. Place the jumper on the 'L' pin to set the module for low-level trigger, or on the 'H' pin for high-level trigger.

4. Wire your device's power circuit through the relay terminals. For a device that should be on by default, use the NC and C terminals. For a device that should be off by default, use the NO and C terminals.



APPLICATION SCENARIOS

- Home Automation: Control lights, fans, and other AC appliances using a microcontroller.

- Industrial Control: Manage motors, solenoids, and other industrial equipment.

- Student & Hobbyist Projects: An essential component for university electronics projects, robotics, and DIY creations.

- IoT Devices: Enable your custom IoT projects to interact with and control high-power physical devices.

- CNC Machinery: Integrate into CNC control systems for switching auxiliary equipment like vacuum pumps or cooling systems.