4 Channel SSR Solid State Relay Module 250V 2A – for 3.3V and 5V control voltage

A Solid State Relay module (SSR) switches voltage just like a mechanical relay with coil and contacts, but without coil and contacts! An SSR doesn’t contain any electro-mechanical components and uses semiconductor technology to switch AC or DC current (depending on the type).

This module comes with 4 separate channels, each channel can switch AC of up to 250V with 2A.

A power supply 5V DC is required, with an output current of 100mA or more. Please connect the DC power supply to the DC+ and DC- pins on the board.

Channel control inputs are marked with CH1 to CH8 and require a control voltage of 3.3 to 5V DC (logic level).

Mechanical relay modules with 1 relay, 2 relays, 4 relays, 8 relays and 16 relays are also available.

High-Current relay modules (30A) are available as well.

Finally, we offer relay modules for the ESP-01 IoT module, WeMos D1 Mini, remote-controlled relays, and a Wi-Fi 4-Channel relay DIY kit.