600V / 1.2A Solid State Relay (H0FR6x)


600 VAC / 1.2A Solid State Relay

Stage: Production

5 in stock (can be backordered)


H0FR6x is a compact solid state relay (SSR) module capable of driving AC loads up to 600V and 1.2A. It is based on Panasonic AQH3213A SSR and STM32F0 MCU.

  • Use as a stand-alone smart AC relay and easily control AC loads (lamps, fans, power outlets, etc.) via a Command Line Interface (CLI).
  • Firmware has embedded on / off / toggle, timers and PWM functionality.
  • Program advanced C code with our easy-to-use APIs.
  • Connect many H0FR6 modules together and combine with H0FR1 to drive DC loads as well.
  • Send commands to a single relay, a group of relays, or broadcast to all of them.
  • Connect to external hardware or combine with other Hexabitz modules!

WARNING: Voltages higher than 24V can be dangerous! Make sure you know what you’re doing and use protection (circuit breakers, etc.) whenever possible.



  • Panasonic AQH3213A solid-state relay (SSR):
    • 120V or 240V AC rated voltage.
    • 600V AC peak OFF-state voltage.
    • 1.2A ON-state RMS current.
    • 100 µsec maximum turn-on time.
    • Zero-crossing detection.
  • Yellow indication LED for SSR state.
  • SSR load connector: TE Connectivity/AMP 2-position 5.08 mm shrouded header.


  • STM32F091CBU6 32-bit ARM Cortex-M0 MCU.
  • 8MHz external oscillator.
  • Five array ports and six power ports (+3.3V and GND).
  • Access to 5xUART, 2xI2C, SWD, BOOT0, RESET.

Physical Properties

  • Shape: Hexagon
  • Size: 30 mm short diagonal, 17.32 mm side
  • Area: 7.8 cm^2
  • Weight: 2 g
  • Soldermask Color: Dark green
  • Surface Finish: ENIG (gold) or HASL-LF (tin)


Please visit this product projects on Hackster.io network.



Quickstart Guide

Download PDF version here.


Frequently Asked Questions

A: All sorts of AC loads < 700 watts including lamps, fans, heaters, power outlets, AC synchronous motors, etc.

Have more questions? Please check our main FAQ page and feel free to contact us for any unanswered questions.


Download PDF version here.


  • Schematics (PDF)
  • Hardware Design Files (Circuit Maker, EAGLE)
  • Source Code (GitHub). Download a pre-compiled firmware HEX file here.
  • Documentation / Factsheet (PDF)
  • Projects & Examples: Please check our account on Hackster.io for demo projects and examples.