5V 2-Channel SSR G3MB-202P Solid State Relay Module - High Level Trigger for Arduino

Product Overview

Professional 2-channel solid state relay module featuring Omron G3MB-202P SSR components. This module provides reliable, silent switching of AC loads up to 240V using low-voltage 5V control signals from microcontrollers like Arduino, Raspberry Pi, or PLC systems. Perfect for controlling high-power AC devices safely and efficiently.

Key Features

Genuine G3MB-202P SSR: High-quality Omron-style solid state relays
2 Independent Channels: Control two separate AC loads simultaneously
5V Logic Control: Direct connection to Arduino and other 5V microcontrollers
High Level Trigger: Active when control signal is HIGH (5V)
LED Indicators: Visual feedback for each channel's status
No Mechanical Parts: Silent operation with no clicking sound
Long Lifespan: No mechanical wear, millions of switching cycles
Optical Isolation: 2500V isolation protects your control circuit
Fast Switching: Microsecond response time
Zero-Cross Detection: Reduces electrical noise and extends load life

Technical Specifications

Control Side (Input):

Control Voltage: 5V DC
Control Current: Approximately 20mA per channel
Trigger Type: High level (active HIGH)
LED Indicator: Yes (per channel)
Connector: Standard pin headers for easy connection

Load Side (Output):

Load Voltage: 100-240V AC
Load Current: 2A per channel (maximum)
Recommended Load: 1A or less for best reliability
Switching Type: Zero-crossing
Isolation Voltage: 2500V AC

Physical:

Dimensions: Approximately 50mm x 33mm
Mounting Holes: Yes (for secure installation)
Screw Terminals: For easy AC wiring

Solid State Relay Advantages

Silent Operation: No mechanical clicking or buzzing
Faster Switching: Much quicker than electromagnetic relays
Longer Lifespan: No contacts to wear out
No Bounce: Clean switching without contact bounce
Low EMI: Reduced electromagnetic interference
Compact Size: Smaller than equivalent mechanical relays
Lower Power Control: Requires less drive current

Applications

Home automation lighting control
AC appliance switching (fans, heaters, pumps)
Temperature control systems
Motor speed control (with proper circuit)
Industrial equipment automation
Smart home projects
Stage lighting control
HVAC system control
Irrigation system automation
Coffee machine and appliance timers

Wiring Instructions

Control Side:

DC+ : Connect to 5V power supply
DC- : Connect to ground (GND)
CH1/CH2 : Connect to digital output pins on Arduino/microcontroller

Load Side:

Input: Connect to AC power source (Live wire)
Output: Connect to your AC load device
Always follow local electrical codes and safety regulations

Safety Features

Optical isolation protects control circuit from high voltage
Built-in LED indicators show relay status
Screw terminals ensure secure connections
PCB-mounted components for reliability
Zero-cross switching reduces electrical stress

Package Includes

1x 2-Channel SSR Solid State Relay Module (G3MB-202P)

Compatible With

Arduino (UNO, Mega, Nano, etc.)
Raspberry Pi (all models)
ESP8266 / ESP32
STM32 microcontrollers
PIC microcontrollers
PLC systems
Any 5V logic controller

Important Safety Notes

⚠️ WARNING: This module switches HIGH VOLTAGE AC power

Always disconnect power before wiring
Use appropriate wire gauge for your load current
Follow local electrical codes and regulations
Do not exceed 2A load current per channel
Ensure proper ventilation for heat dissipation
Consider using a fuse for additional protection
If unsure about AC wiring, consult a qualified electrician

Country of Origin	China
Brand	Unbranded
Marke	Markenlos

5V 2CH SSR G3MB-202P Solid State Relay Module High Level For Arduino-

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