Sonoff ZigBee Dry Contact Smart Switch MINI-ZBD

• Flexible AC & DC Power Compatibility : Designed for both 110–240V AC and 12–48V DC power input, allowing flexible installation in traditional home wiring systems or low-voltage solar and battery-powered automation setups without requiring extra power converters
• Reliable Low-Voltage DC Device Control : Supports stable control of up to 8W DC motors and solenoid valves / with faster response and lower resistance for better load protection
• Dry Contact Output with NO/NC Support : Built with a dry contact relay supporting both normally open (NO) and normally closed (NC) modes / enabling safe and flexible control of garage doors / boilers, electric gates / water pumps / fire alarm systems / and more without modifying existing wiring
• Easy High-Power Expansion with Contactors : Pair with contactors to control high-power equipment using low-power signals / including AC units / large pumps / and industrial lights—no need for costly high-wattage smart switches
• Smart Zigbee Integration & Signal Repeating :Supports the Zigbee protocol and works with Zigbee hubs for remote control / voice commands / smart scheduling / and advanced automation via the eWeLink App or platforms like Home Assistant. It also functions as a Zigbee router to expand mesh coverage / reduce signal dead zones

Specifications

• MCU : EFR32MG21
• Rating : 100-240V~ 50/60Hz 0.1A Max O 12-48V⎓1A Max μ
• Load : 24V⎓2A Max Resistive load OR 12/24V⎓8W
• Zigbee : IEEE 802.15.4
• Net Weight : 34.5g
• Dimensions : 41x43x21.5mm
• Color : White
• Casing Material : PC
• Applicable Place : Indoor
• Wiring : 18AWG to 14AWG (0.75mm² to 1.5 mm² )
• Working Temperature : 10T40 (-10℃~40℃)
• Working Humidity : 5%~95% RH / non-condensing
• Working Height : Less than 2000m
• Pollution Degree : II
• Rated Impulse Voltage : 4KV
• Automatic Action : 20000 Cycles
• Certification : CE/FCC/RoHS