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Qwiic Quad Solid State Relay Kit - module with four relays

Module with 4 relays controlled by the I2C interface. Each relay can switch currents up to 40 A at 28-380 V AC. SparkFun KIT-16833

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ID: 580590

45,95€ gross (23% VAT)
37,36€ net

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Data sheet

Output current40 A
Number of channels4
Executive elementSSR

More info


Module with relays controlled by the I2C interface. The board allows you to place up to four relays. Due to the fact that the module is based on the ATTiny84 microcontroller, they can be controlled via the I2C interface. ATTiny84 is pre-programmed. The I2C ATTiny84 address is software configurable. Each relay can switch currents up to 40 A at 28-380 V AC.

The kit does not require soldering. In order to connect the relays to the board and AC load, it is necessary to screw the relays and connect the wires.

Arduino libraries are available for the module.

The black standoffs and 4-40 screws used to secure them shown in some of the photos are not included with the kit.


  • Power supply: 2.5 to 3.6 V (3.3 V recommended)
  • I2C address: 0x08 (default), 0x09
  • Relay SSR40DA:
  • Maximum current: 40 A.
  • Output voltage: 24 - 380 VAC
  • Low EMI / EFI
  • Low inrush current of 7.5 mA / 12 V
  • 2.5 kV insulation
  • Zero Cross Trigger
  • Normally open circuit

Kit contains

  • Qwiic Quad Solid State PCB
  • 4 x semiconductor relays - 40 A (input 3-32 V DC)
  • 8 x Nut
  • 8 x Screw
  • 22 AWG connecting wire (red)
  • 22 AWG connecting wire (black)