5V 1-Channel SSR G3MB-202P Solid State Relay Module – OMRON AC Load Relay for Arduino, ESP32 & Automation
Rs. 199.00
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5V 1-Channel SSR G3MB-202P Solid State Relay Module – OMRON AC Load Relay for Arduino, ESP32 & Automation
Rs. 199.00
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The 5V 1-Channel SSR G3MB-202P Solid State Relay Module OMRON is a compact, reliable switching module designed to control AC electrical loads using a low-voltage DC control signal. Based on the G3MB-202P solid-state relay, this module provides electrically isolated switching without the mechanical contacts found in conventional relays.
The module can be controlled directly from popular microcontrollers such as Arduino, ESP32, ESP8266, STM32, and Raspberry Pi, making it suitable for automation and embedded applications where an AC appliance needs to be controlled electronically.
Its solid-state design provides silent switching, fast response, and long operational life, making it a useful choice for lighting control, fans, small AC appliances, heating elements, and other compatible AC loads.
Key Features
- 1-channel Solid State Relay (SSR)
- 5V DC control input
- Based on G3MB-202P SSR
- OMRON G3MB-series relay
- Optical isolation between control and load circuits
- Silent operation with no mechanical contacts
- No relay clicking noise
- Fast electronic switching
- Long service life compared with mechanical relays
- Compatible with Arduino, ESP32, ESP8266 and STM32
- Suitable for AC load switching and automation projects
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Solid State Relay Module |
| Channels | 1 |
| Relay Model | G3MB-202P |
| Control Voltage | 5V DC |
| Load Type | AC |
| Switching | Solid State / Electronic |
| Isolation | Optical |
| Output | AC Switching |
| Control Interface | Digital Input |
| Application | AC Load Control & Automation |
Important: The actual maximum load voltage/current depends on the specific G3MB-202P relay and module revision. Always verify the markings and datasheet of the supplied module before connecting an AC load.
Package Includes
- 1 × 5V 1-Channel G3MB-202P Solid State Relay Module OMRON
Recommended Applications
- Arduino AC load control
- ESP32 home automation
- ESP8266 automation projects
- Industrial automation
- AC light control
- Fan control
- Heating control
- Smart home systems
- IoT appliance control
- AC motor control applications
- Temperature controller projects
- PLC interface projects
- Embedded control systems
- DIY automation projects
How It Works
The module uses a low-voltage control signal from a microcontroller to electronically switch an AC load.
Arduino / ESP32 GPIO → 5V SSR Input → Optical Isolation → AC Load
When the control input is activated, the solid-state relay switches the connected AC load. When the input is deactivated, the load is switched off.
Unlike a mechanical relay, the SSR does not contain moving contacts, resulting in silent switching and reduced mechanical wear.
Advantages of a Solid State Relay
- Silent operation – no mechanical clicking
- No moving contacts
- Long operational life
- Fast switching response
- Electrical isolation between control and load circuits
- Compact design
- Excellent for automated switching applications
⚠️ Important Safety Information
This module can be used to switch AC mains voltage, which can cause serious injury or death.
- Do not exceed the relay's specified voltage and current ratings.
- Use an appropriately rated fuse and protective enclosure.
- Maintain adequate electrical isolation and insulation.
- Do not touch the module or wiring while energized.
- Ensure the AC load is compatible with the SSR.
- Installation of mains-voltage circuits should be performed by a qualified professional.
Do not connect mains voltage directly to a microcontroller or low-voltage side of the module.