The SONOFF MINI-ZBD is a Zigbee smart switch featuring a dry contact relay, designed for smart automation across a wide range of residential, commercial, and industrial applications. Compatible with both AC and DC power supplies, it can be integrated into traditional electrical systems as well as low-voltage installations powered by batteries or solar energy.
Its dry contact relay supports both Normally Open (NO) and Normally Closed (NC) modes, making it suitable for controlling garage doors, electric gates, boilers, water pumps, electric locks, fire alarm systems, and other automation equipment without modifying existing wiring.
With Zigbee connectivity, support for Home Assistant, eWeLink, and compatible Zigbee hubs, the MINI-ZBD enables remote control, automation, scheduling, and voice control while also functioning as a Zigbee router to extend network coverage.
Main Features
Zigbee smart switch with dry contact relay.
Compatible with both AC and DC power supplies.
Dry contact output with Normally Open (NO) and Normally Closed (NC) support.
Control of garage doors, electric gates, boilers, pumps, and alarm systems.
Reliable control of DC motors and solenoid valves up to 8W.
Remote control via the eWeLink app.
Smart scheduling and automation.
Voice command support.
Compatible with Zigbee hubs.
Home Assistant integration.
Zigbee router functionality for mesh network extension.
Control of high-power equipment through external contactors.
Smart garage door automation.
Smart HVAC and heating system management.
Custom irrigation scheduling.
Compatible with Apple Home through Matter Bridge solutions.
Technical Specifications
Product Name: Zigbee Dry Contact Smart Switch
Series: MINI Dry Series
Model: MINI-ZBD
MCU: EFR32MG21
Power Supply: 100–240V AC, 50/60Hz, 0.1A max
Alternative Power Supply: 12–48V DC, 1A max
Load Capacity: 24V DC, 2A maximum resistive load
Low Voltage Load Support: 12/24V DC, up to 8W
Zigbee Protocol: IEEE 802.15.4
Dimensions: 41 × 43 × 21.5 mm
Weight: 34.5 g
Color: White
Housing Material: PC
Wiring Compatibility: 18AWG to 14AWG (0.75 mm² to 1.5 mm²)
Operating Temperature: -10°C to 40°C
Operating Humidity: 5% to 95% RH (non-condensing)
Maximum Operating Altitude: Less than 2000 m
Pollution Degree: II
Rated Impulse Voltage: 4 kV
Automatic Cycles: 20,000 cycles
Compatibility
Zigbee IEEE 802.15.4
eWeLink
Home Assistant
SONOFF Zigbee Hubs
SONOFF ZBBridge-U
SONOFF iHost
SONOFF eWeLink CUBE
SONOFF Zigbee Dongle Series
Apple Home via Matter Bridge
Typical Applications
Garage door control.
Electric gate automation.
Boiler and heating control.
Water pump management.
Smart irrigation systems.
Electric lock control.
Fire alarm system integration.
Control of high-power equipment through contactors.
