Overview: Reliable 1-Channel Relay Module for Precise SwitchingThis 1-channel relay module provides a simple and robust interface between low-voltage microcontrollers and high-voltage loads. Designed for Arduino, Raspberry Pi, ESP32/ESP8266 and other controllers, it lets you switch lights, motors, pumps and appliances safely and reliably.Key FeaturesControl Voltage: 5V DC input compatible with most microcontroller boardsRelay Type: SPDT (Single Pole Double Throw) with Normally Open (NO) and Normally Closed (NC) contactsSwitching Capacity: Up to 10A at 250V AC or 10A at 30V DC for common household and industrial loadsOptocoupler Isolation: Electrically isolates the control side from the load side to protect the controller from spikes and interferenceLED Indicator: Visual relay status feedback for troubleshooting and monitoringScrew Terminals: Secure, solder-free connections for quick installationCompact Form Factor: 52 mm x 26 mm x 18 mm with mounting holes for easy integration into enclosuresElectrical SpecificationsControl Voltage: 5V DCInput Signal: TTL compatibleContact Rating: 10A @ 250V AC / 10A @ 30V DCRelay Configuration: SPDT (COM, NO, NC)Isolation: Optocoupler on control inputMechanical SpecificationsBoard Size: 52 mm x 26 mm x 18 mmMounting: 2 mounting holes includedTerminals: 3 screw terminals for load and 3-pin header for controlCompatibility and Supported ControllersPlug-and-play compatibility with popular controllers and development boards:Arduino Uno, Mega, NanoRaspberry Pi (any model)ESP8266, ESP32STM32, PIC, AVR and other microcontroller platformsApplicationsHome automation: control lighting, fans, heaters and small appliancesIndustrial automation: drive pumps, solenoids and control circuitsAutomotive projects: custom electronics and auxiliary systemsDIY electronics, robotics and prototypingWiring and Usage TipsConnect the module VCC to 5V and GND to ground on your controller. Drive the IN pin with a digital output (TTL).Use the COM/NO/NC screw terminals for the high-voltage load wiring. Ensure power is off while wiring.When switching inductive loads (motors, solenoids), add appropriate snubber diodes or RC circuits on the load side to reduce arcing and prolong relay life.Keep the control and load wiring separate and use short ground returns to minimize noise coupling.Safety and Best PracticesAlways observe local electrical codes when wiring AC mains. If you are not qualified, consult a licensed electrician.Do not exceed the rated contact current and voltage. Use a higher-rated relay or contactor for heavy loads.Isolate the module during testing and place it in an enclosure for permanent installations to prevent accidental contact.Use fuses or circuit breakers on the load circuit for added protection.Why Choose This Relay ModuleThis 1-channel relay module balances compact size with industrial-grade features. The optocoupler isolation and solid switching capacity make it suitable for both prototyping and long-term installations. The LED indicator and screw terminals speed up development and maintenance. It is an excellent choice for students, hobbyists, engineers and technicians.Buy in Islamabad and Across PakistanAvailable at colgroad.com with local shipping to Islamabad and nationwide delivery across Pakistan. Pair this module with sensors, timers, or voice modules for a complete automation solution.Order NowReady to add reliable switching to your project? Order the Relay Module (1-Channel) today from colgroad.com and get fast delivery and support.Note:Images are for illustration purposes only. Categories: Boards, Modules and Accessories, Sensors And Modules Tags: 1-Channel Relay, Arduino Relay, Compact Relay, Easy Connection, High Voltage Control, Low Voltage Trigger, Relay Module College Road Electronics4.85 (317 Reviews)
