8 Relay, USB, I2C, Master/Slave, MPU Rev H

SKU: 8014-06-01-H

8-Channel Power Relay Board Via USB or I2C Protocol

I2C-Relay8, Revision H


This unit provides fast, easy, and expandable control of up to 16 modules through 2-wire I2C serial or USB communication. Ideal for use in industrial and commercial systems. LabVIEW drivers available.


  • 8 Power Relays Form-C, rated for
    • 28VDC @ 7A (resistive load only)
    • 125VAC @ 12A (resistive load only)
    • P/N SRD-05VDC-SL-C or equivalent (datasheet)
  • 8 Relay LED status indicators (Green)
  • 8 Terminal blocks Screw-down 3-PIn (14-22 awg)


  • Supports simple command protocol via USB jack
  • Supports I2C "fast" mode (400Kbps)
  • Speeds ranging from 1KHz to 100KHz
  • Inter-bit and inter-byte clock stretching
  • Daisy-chaining, expansion up to 16 modules
  • Interrupt-on-change
  • Address-selectable; Jumpers (16 addresses)
  • I2C accessible via terminal blocks TB19/TB20 or J2

Additional Features:

  • LabVIEW Ready: Free drivers available for version 7.0 and greater
  • Power supply output: 5V @ 500mA power supply
  • Short-circuit protection: Resettable PTC fuse
  • Stackable form factor

Power Supply:

  • Power indicator: LED Green
  • Input power: J1 or TB17 (Polarity-protected)
  • 7.5 VDC @ 600 mA max.
  • Alternatively power directly from USB

Physical Characteristics:

  • Dimensions: 64 mm W x 252 mm L (2.5" X 9.9")
  • Weight: 188g (6.6oz)
  • Relative humidity: 10-80% non-condensing
  • Operating temperature: 0 to 60C (32 to 140F)
  • Storage temperature: -20 to 70C (-4 to 175F)

Product Line:


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Relay Labview Driver155.63 KB
I2C-Relay8 Rev H Datasheet458.94 KB
I2C-Relay8 Rev H Manual267.83 KB
Price: $79.99