Description
Sonoff Mini Dry Zigbee Dry Contact Smart Switch
Universal Smart Control for Gates, Garage Doors, and Low-Voltage Systems
The Sonoff Mini Dry Zigbee Dry Contact Smart Switch is a highly versatile automation module designed to bridge the gap between smart home systems and traditional electrical or low-voltage control circuits.
Unlike standard smart switches that directly power loads, the MINI-ZBD uses a dry contact (NO/NC) relay, making it ideal for safely controlling devices such as garage doors, electric gates, irrigation systems, boilers, pumps, and industrial control inputs.
With support for both AC and DC power input and full Zigbee 3.0 mesh networking, it is the perfect solution for advanced DIY automation, smart infrastructure projects, and professional installations.
Flexible AC and DC Power Input
Designed for maximum installation flexibility, the MINI-ZBD supports multiple power environments:
- 110–240V AC mains power
- 12–48V DC low-voltage systems
This makes it suitable for:
- Residential electrical systems
- Solar and battery-powered setups
- RV and marine installations
- Off-grid automation systems
- Industrial control environments
No additional converters are required, simplifying installation across a wide range of applications.
Safe Dry Contact Control (NO / NC Output)
The MINI-ZBD provides electrically isolated dry contact switching, allowing it to safely interface with sensitive control systems.
Perfect for triggering or controlling:
- Garage door open/close inputs
- Electric gate controllers
- Boiler control terminals
- Fire alarm panels (input trigger systems)
- Irrigation controllers
- Solenoid valves
- Access control systems
- Low-voltage signal circuits
Because the relay is isolated, it does not supply power directly, making it safe for sensitive or manufacturer-specific control inputs.
Expand to High-Power Systems with Contactors
While the MINI-ZBD itself handles low-power switching, it can also be used as a control signal for external contactors, enabling automation of high-load devices such as:
- Air conditioning systems
- Large water pumps
- Industrial lighting
- Workshop machinery
- Heavy-duty heating systems
This makes it a powerful building block for scalable smart infrastructure.
Zigbee 3.0 Reliable Mesh Networking
Built on Zigbee 3.0, the MINI-ZBD delivers fast, stable, and energy-efficient communication.
Key advantages:
- Local control via Zigbee hubs (no cloud dependency required)
- Strong mesh networking for improved coverage
- Low-latency response for automation triggers
- Stable integration with large smart home ecosystems
Compatible with:
- Home Assistant (ZHA / Zigbee2MQTT)
- SONOFF Zigbee gateways
- Amazon Alexa (via hub integration)
- Google Home (via hub integration)
- eWeLink Zigbee systems
Additionally, the device acts as a Zigbee router, strengthening your mesh network and improving reliability across your smart home.
Compact Design for Flexible Installation
The MINI-ZBD is engineered for tight installation spaces where traditional relays or controllers cannot fit.
Features include:
- Ultra-compact housing
- Easy integration into junction boxes and control panels
- Clean retrofit installation
- Suitable for hidden or embedded automation setups
Perfect for both DIY projects and professional installations.
Smart Automation & Remote Control
Unlock full smart control of your connected systems.
Features include:
- App-based remote control via Zigbee hub
- Timers and scheduling
- Smart scene triggers
- Automation routines
- Voice assistant control (via hub integration)
- Local Zigbee execution for reliability
Example automations:
- Open garage door when you arrive home
- Turn irrigation system on at sunrise
- Trigger gate access remotely for deliveries
- Activate boiler heating before waking up
- Control workshop systems on schedule
Ideal For
✔ Garage doors
✔ Electric gates
✔ Irrigation systems
✔ Boilers and heating systems
✔ Solenoid valves
✔ Access control systems
✔ Smart home DIY projects
✔ Industrial automation inputs
✔ Solar / off-grid systems
✔ Contactors for high-power loads
Technical Specifications
| Specification | Details |
|---|---|
| Model | MINI-ZBD |
| Protocol | Zigbee 3.0 (Router) |
| Power Input | 110–240V AC or 12–48V DC |
| Output | Dry Contact Relay (NO/NC) |
| Load Type | Low-power signal switching |
| Expansion | Supports external contactors |
| Dimensions | ~41 × 43 × 21.5 mm |
| Installation | Junction box / control panel |
Why Choose the SONOFF MINI-ZBD?
The Sonoff Mini Dry Zigbee Smart Switch is designed for advanced automation scenarios where traditional smart switches are not suitable. By offering isolated dry contact switching, dual power input flexibility, and robust Zigbee mesh connectivity, it enables reliable control of everything from garage doors to industrial systems.
Whether you’re building a smart home, upgrading access control, or automating complex electrical systems, the MINI-ZBD provides a safe, compact, and highly adaptable solution for modern smart automation.











