Solid State Relay SSR Module 8 Channel 5V
G3MB-202P, 5V version overview
The G3MB-202P, 5V version is a Solid State Relay SSR Module 8 Channel 5V. Main ratings: Isolation Phototriac; Size 130 x 62 x 22 (LxWxH) mm; Zero crosses Yes; Rated output load 2A at 100 to 240VAC.(50/60Hz). This page brings together the G3MB-202P, 5V version pinout and key specifications, with the full datasheet PDF to preview below or download.
A solid-state relay (SSR) is just what it sounds like; an IC that acts like a mechanical relay. They allow you to control high-voltage AC loads from lower voltage DC control circuitry. They accomplish this by using infrared light as the ‘contact,’ a solid-state relay is really just an IR LED and a photometric sealed up into a little box.
Compares with the traditional mechanical relay, the Solid State Relay (SSR) has many advantages: it has a longer life, with a much higher turn-on/off speed and no noise. Besides, it also has better resistance to vibration and mechanical shock and better moisture-proof performance. This Solid State Relay Module is based on Omron G3MB, to control current up to 2A@240VAC, and can be widely used in various areas such as computer peripheral interfaces, temperature/speed light adjustment, servo control, petrochemical, medical instrumentations, financial devices, coal, meters, traffic signals, etc.

Key specifications
Datasheet
G3MB-202P, 5V version features
- 8-channel 2 AMP Solid State Relay board.
- Control 8 loads of up to 2 amps each at 120 V or 240 V AC.
- Good for lighting, Holiday displays, etc.
- With 8 Solid State Relays: 2A at 100 to 240 VAC.(50/60 Hz)
G3MB-202P, 5V version pinout

| Name | Description |
|---|---|
| GND | Ground reference for the module |
| IN1 | Input to activate relay 1 |
| IN2 | Input to activate relay 2 |
| IN3 | Input to activate relay 3 |
| IN4 | Input to activate relay 4 |
| IN5 | Input to activate relay 5 |
| IN6 | Input to activate relay 6 |
| IN7 | Input to activate relay 7 |
| IN8 | Input to activate relay 8 |
| VCC | Power supply for the relay module |
| GND | Ground reference for the module |
| VCC | Power supply selection jumper |
| RY-VCC | Alternate power pin for the relay module |
G3MB-202P, 5V version applications
- Home automation systems for controlling multiple lights, fans, and appliances simultaneously
- Industrial control systems for managing multiple motors, pumps, and other electrical loads
- Building management systems for centralized control of lighting, HVAC, and other electrical devices
- Greenhouse automation for controlling lighting, ventilation, and irrigation systems
- Power distribution systems for switching and controlling multiple circuits
- Stage lighting control in theaters, concerts, and events
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