5V 4 Channel SSR G3MB-202P Solid State Relay Module (Opto-Isolated AC Relay Module)

The 5V 4 Channel SSR G3MB-202P Solid State Relay Module is a compact relay board designed for silent and reliable switching of AC loads using low-voltage control signals from microcontrollers. It features four G3MB-202P solid-state relays with optical isolation, providing fast, contactless switching without mechanical wear or relay noise. Compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi, and other controller boards, this module is ideal for controlling heaters, lamps, fans, pumps, solenoid valves, and other AC-powered equipment in automation and industrial applications.

Key Features -

• Four independent solid-state relay channels

• Based on G3MB-202P SSRs

• 5V DC control voltage

• Silent contactless switching

• High switching speed

• Optical isolation for improved safety

• LED status indicators for each channel

• Low-level trigger input

• Compact PCB module

• Suitable for AC load control

Specifications -

• Product type - Solid State Relay Module

• Relay model - G3MB-202P

• Operating voltage - 5V DC

• Number of channels - 4

• Relay type - Solid State Relay (SSR)

• AC load voltage - Up to 240V AC

• Maximum load current - Up to 2A per channel

• Trigger type - Low-Level Trigger (Typical)

• Isolation type - Optical Isolation

• Mounting type - PCB Module

• Operating temperature - 0C to 70C

Applications -

• Home automation

• Lighting control

• Heater control

• Industrial automation

• AC appliance switching

• Temperature control systems

• Embedded systems

• DIY electronics projects