Smart Home Assistant
Relays & dimmer modules
SONOFF 4CH Pro R3

SONOFF

SONOFF 4CH Pro R3

HACS componentLocal control
  • Wi-Fi

Verified July 2026

A DIN-rail 4-gang Wi-Fi relay for consumer-unit-level jobs — four 10A channels with interlock/self-locking modes that suit a garage door, gate motor, or multi-zone valve setup. It's Wi-Fi and 433MHz RF only (there's no Zigbee variant, despite what some listings imply), and stock firmware has no official HA integration: your realistic routes are the AlexxIT SonoffLAN HACS integration over eWeLink LAN mode, or reflashing to Tasmota for a fully local MQTT setup. Supports both live/neutral and dry-contact/no-neutral wiring modes, which is unusually flexible for older UK circuits.

Specs

mount
DIN rail
channels
4
wiring modes
live/neutral or dry-contact/no-neutral
interlock mode
true
neutral required
false
max load a per channel
10
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