The M5Stack Solid State Relay Unit (SSR) enables fast, reliable AC switching with optocoupler isolation and zero-cross detection. Supporting 3.3-5V control signals, it’s ideal for remote automation projects, lighting control, and CNC applications requiring silent, high-speed switching.
The M5StackSolid State Replay Unit (SSR) is a solid state relay integrated with MOC3043M optocoupler isolation and zero-crossing detection.
It supports a 3.3-5V DC control signal to control a single-phase 220-250V AC power output. Combined with the M5 controller and the UIFlow programming platform, it can easily achieve remote control.
Compared to ordinary mechanical relays, this solid-state relay uses power semiconductor devices for control, offering microsecond-level switching speed and built-in overcurrent protection.
It has no physical contacts, long lifespan, high reliability, and can adapt to complex working environments such as severe vibrations. It is used in scenarios requiring frequent switching and fast response, such as lighting control and CNC machine tools.
Features
Zero-crossing SSR
Built-in overcurrent protection
Built-in optocoupler isolation with zero-crossing detection
Fast speed, low noise, long lifespan, high reliability, and high sensitivity
Uses GROVE interface for easier connection
Supports UIFlow graphical programming, enabling remote control of the relay with an M5 controller in just 3 minutes
Specifications
Thyristor Model
BT136S
Optocoupler Model
MOC3043
Control Signal
3.3-5V DC
Switching Voltage
Single-phase AC: 220-250V
Maximum Load Current
2A
Control Channels
1
Overcurrent Protection
Fuse: 2A
Operating Temperature
-10 ~ 80°C
Product Size
56.0 x 24.0 x 10.2mm
Product Weight
8.3g
Warning
Be cautious when using high-voltage AC loads; do not operate with power on.
