About this item

The 1-Channel Isolated 5V Relay Module with Optocoupler is a versatile and reliable component designed for controlling high-voltage devices using low-voltage microcontrollers like Arduino, PIC, AVR, DSP, and ARM. This module features a Single Pole Double Throw (SPDT) relay configuration, allowing for both Normally Open (NO) and Normally Closed (NC) contacts, providing flexibility in circuit design. The optocoupler isolation ensures that the control side is electrically isolated from the high-voltage side, protecting sensitive microcontroller circuits from voltage spikes and electrical noise. The module operates with a 5V DC input and requires a trigger current of approximately 20mA, making it compatible with standard logic levels. It can switch AC loads up to 250V at 10A and DC loads up to 30V at 10A, making it suitable for controlling appliances, lights, motors, and other high-power devices. The module is equipped with a power supply indicator lamp to indicate when the module is powered on. Additionally, it includes four mounting holes with a diameter of 3.1mm, facilitating easy installation and secure mounting in various enclosures. This relay module is an essential component for projects involving home automation, remote control systems, and other applications requiring safe and reliable switching of high-power devices.