







The 4 Channel Relay Module with Optocoupler is a reliable control interface designed to switch multiple high-power AC or DC loads using low-voltage control signals. Operating with a 5V control signal, it allows independent control of four devices up to 250V AC or 30V DC at 10A per channel. Integrated optocoupler isolation enhances safety by protecting microcontrollers from electrical noise and high voltage. This compact module is ideal for automation, robotics, and DIY electronics projects.
وحدة الريليه رباعية القنوات مع العزل الضوئي هي وحدة تحكم موثوقة لتشغيل عدة أحمال كهربائية عالية القدرة باستخدام إشارات تحكم منخفضة الجهد. تعمل بإشارة تحكم 5 فولت وتتيح التحكم المستقل في أربعة أجهزة حتى 250 فولت تيار متردد أو 30 فولت تيار مستمر بتيار 10 أمبير لكل قناة. يوفر العازل الضوئي حماية عالية لوحدات التحكم الدقيقة، مما يجعلها مناسبة لمشاريع الأتمتة والإلكترونيات.
The 4 Channel Relay Module with Optocoupler is designed to safely interface low-voltage microcontrollers with high-power electrical loads. Each channel is equipped with a high-current relay capable of switching up to 250VAC or 30VDC at 10A, making it suitable for controlling a wide range of electrical devices.
The built-in optocoupler provides electrical isolation between the control circuit and the load, protecting sensitive electronics from voltage spikes and electromagnetic interference. LED indicators display the real-time ON/OFF status of each relay, while high-quality screw terminals allow secure and convenient wiring.
With a compact PCB layout and standard mounting holes, the module can be easily installed in control panels or project enclosures. It supports direct control of AC and DC devices such as motors, lights, solenoids, fans, and pumps, making it an essential component for automation and control systems.
Product Type: 4 Channel Relay Module
Control Voltage: 5V
Operating Voltage: 12V (Relay Coil Supply)
Trigger Current: 20 mA
Switching Voltage (AC): 250V @ 10A
Switching Voltage (DC): 30V @ 10A
Relay Contacts: NO / NC / COM
Isolation Type: Optocoupler
Terminal Type: KF301 Screw Terminals
Mounting Hole Diameter: 3 mm
Hole Pitch: 68 mm (X-axis), 48 mm (Y-axis)
Dimensions: 76.6 × 56 × 20 mm
Weight: 55 g
Home automation systems
Smart switches and controllers
Robotics and automation projects
Industrial control panels
DIY electronics and prototyping
Microcontroller-based projects (Arduino, Raspberry Pi, etc.)