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Green PCB relay module with six black relay cubes, screw terminals, and mounting tabs

WaveShare

WaveShare Industrial 6-CH Relay Module for Raspberry Pi Zero RS485 CAN 10A 250V AC 30V DC

SKU CH-PKCJ-QVEGT

Six-channel relay board adds isolated RS485 and CAN control to a Raspberry Pi Zero, switching 10 A at 250 V AC or 30 V DC

  • CPU TypeOther
  • 6 isolated relays switch 10 A at 250 V AC or 30 V DC
  • RS485 half-duplex via SP3485 with auto RX/TX switching
  • CAN half-duplex via MCP2515 and SN65HVD230 over SPI
  • Onboard power and photocoupler isolation protect the Pi from high-voltage circuits
  • TVS diodes, resettable fuses and protection diodes guard against surges and over-current

Industrial Relay Module for Raspberry Pi Zero

This six-channel relay board is built for Raspberry Pi Zero, Zero W and Zero WH boards. It provides RS485 and CAN half-duplex interfaces so the Pi can switch mains or low-voltage loads in automation, HVAC or test-rig projects. Each channel handles 10A at 250V AC or 10A at 30V DC.

Check Pi model and bus wiring

Verify you are using a Raspberry Pi Zero variant with a 40-pin header; the module plugs directly onto that header. Confirm your control software can drive the SP3485 UART for RS485 and the MCP2515 SPI for CAN. Ensure the external circuits you intend to switch stay within the 10A 250V AC or 10A 30V DC contact ratings.

Mounts on DIN rail and isolates power

The ABS enclosure clips onto a standard DIN rail, saving panel space in a cabinet. Onboard unibody power-supply isolation and photocoupler isolation keep the Pi side separate from the switched loads. Built-in TVS diodes, resettable fuses and protection diodes suppress surges and over-current events without extra components.

Highlights

  • 6 isolated relays switch 10 A at 250 V AC or 30 V DC
  • RS485 half-duplex via SP3485 with auto RX/TX switching
  • CAN half-duplex via MCP2515 and SN65HVD230 over SPI
  • Onboard power and photocoupler isolation protect the Pi from high-voltage circuits
  • TVS diodes, resettable fuses and protection diodes guard against surges and over-current

Specifications

CPU TypeOther

Questions about this item

Does the module ship with a Raspberry Pi Zero or do I need to buy the Pi separately?

The relay module is sold alone; a Raspberry Pi Zero, Zero W or Zero WH must be purchased separately to use the board.

Should I choose the RS485 or the CAN interface for my installation?

Both interfaces are present on the same board — RS485 half-duplex via SP3485 with UART control and CAN half-duplex via MCP2515 plus SN65HVD230 with SPI control — so you can use whichever bus your system requires.

What does the 10A 250V AC rating mean when the relays are driven from a Pi Zero?

Each of the six relays can switch up to 10 amps at 250 volts AC or 10 amps at 30 volts DC, independent of the Pi Zero’s low-voltage logic supply.

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