RLY08 - 8 channel I2C/Serial relay

Serial or I2C control

The RLY08 provides eight volt free contact relay outputs with a current rating of up to 1Amp each. It requires a 5v supply and has an exceptionally low maximum current consumption of approx. 100mA with all relays on. The relays are SPCO (Single Pole Change Over) types. 

Relays - 8 
Power - 5v @ 100mA max
Control interface - Serial or I2C 
Relay current - Up to 1Amp @30vdc or 60vac. 500mA@110vac. 250mA@250vac 
Connections - Screw Terminals for N/O N/C and Common contacts
Expansion - Up to 8 modules on Serial or I2C bus 

Excl. VAT: £31.99 Incl. VAT: £38.39
  • Buy 5 for £29.27 (£35.12 incl. tax) each and save 9%
  • Buy 25 for £26.61 (£31.93 incl. tax) each and save 17%
  • Buy 100 for £24.19 (£29.03 incl. tax) each and save 25%

Product data and examples


Full RLY08 Documentation 

I2C bus tutor
 - general I2C guide
 - simple example of relay switching
ATMEGA32 - simple communication example
PIC18F4410 - simple example of relay switching
PIC24FJ16GA002 - simple example of relay switching
Picaxe18x - simple example of relay switching
Raspberry Pi - using I2C communication to change relay states


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