1 Channel 5V Relay Board Module Optocoupler Isolated 10A
VAT inclusive; Computed calculations added locally.
Overview
The 1 Channel 5V Relay Board Module provides a convenient interface between low-voltage control electronics and electrical loads. It is designed for use with microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi (with appropriate logic compatibility).
The board includes an optocoupler isolation stage that helps separate the control signal from the relay switching circuit. A configurable high-level/low-level trigger jumper allows the module to be adapted to different controller logic requirements.
With relay contacts rated for switching up to 10A at 250V AC or 10A at 30V DC (subject to the actual load and installation), this module is suitable for home automation, robotics, industrial prototypes, lighting control, pumps, motors, and other automation projects.
Customer Reviews
Share your verified purchase experience with the community.
Earn Loyalty Rewards
Get 50 Points for reviewing + bonus points when upvoted!
Want to share your experience?
Sign in to leave a verified review for this product.
New here? Create a free account
Verified Comments Listing
Product Technical Information
Technical Details
The 1 Channel 5V Relay Board Module is a ready-to-use relay interface board for switching electrical loads under the control of low-voltage digital electronics. It combines a 5V electromagnetic relay with an optocoupler input stage and screw terminals for convenient wiring.
The input side connects to a microcontroller or other logic source, while the output side provides COM (Common), NO (Normally Open), and NC (Normally Closed) relay contacts. This allows the module to either connect or disconnect a load depending on the control signal.
The onboard jumper lets users choose whether the relay is activated by a HIGH or LOW logic signal, making it compatible with a variety of development boards and control systems.
Features
1-channel relay module
5V DC relay coil
Optocoupler-isolated input
High-level or low-level trigger selectable
COM, NO, and NC output terminals
Up to 10A contact rating
Screw terminal connections
Suitable for Arduino and other microcontrollers
Applications
Home automation systems
Smart switches
Lighting control
Pump control
Motor switching
Robotics projects
Industrial automation prototypes
Remote monitoring and control systems
Safety Note: Although the relay contacts are rated for high voltages and currents, mains-voltage projects require proper insulation, fusing, wiring, enclosure, and electrical safety practices. Never handle or modify the load-side wiring while the circuit is energized.
Frequently Asked Questions
You May Also Like
What Engineers & Builders Say
Trusted by makers, robotics researchers, and DIY electronics enthusiasts across Bangladesh.
"The ESP32 DIY Ambilight Kit arrived within 24 hours in perfect packaging. Everything worked out of the box with flawless code support!"
Tanvir Ahmed
Robotics Engineer
"KathalTech is my go-to store for sensors, NodeMCU boards, and microcontrollers in Bangladesh. Highly reliable service and genuine components."
Nusrat Jahan
IoT Researcher
"Super fast delivery and great support. The pickup point option made it very convenient to collect my project parts after classes."
Sabbir Hossain
University Student & Hobbyist
Sign in with Google +100 PTS
Get 100 Welcome Points & track your orders seamlessly.