SONOFF ZBMINIR2 Zigbee 3.0 Mini Smart Relay – Neutral Wire Required

Make any ordinary light switch smart – without replacing the switch.

You want smart lighting, but you want to keep your existing wall switches. The SONOFF ZBMINIR2 Zigbee MINI Extreme is an ultra-compact relay module that you install behind your existing wall switch in the flush-mounted box. No new switch plates needed, no demolition – just make what you already have smart.

⚡ Ultra compact – 40% smaller than its predecessor

Measuring just 39.5 × 33 × 16.8mm, the ZBMINIR2 is 40% smaller than the previous ZBMINI generation. It fits effortlessly into European flush-mounted boxes (EU/86/120 format), even with limited space. The relay switches up to 10A / 2400W – sufficient for lighting, fans, and small appliances.

📡 Zigbee router – strengthens your network

The ZBMINIR2 also acts as a Zigbee router and actively extends the range of your Zigbee network, supporting up to 64 connected Zigbee end devices. Because the ZBMINIR2 is always connected to mains power, it functions as a reliable and permanent node in your Zigbee mesh.

🔌 Neutral wire required – choose the right model

⚠️ Important: The ZBMINIR2 requires a neutral wire (N). If there is no neutral wire present in your flush-mounted box, choose the SONOFF ZBMINIL2. Always check this before purchase or have it checked by a certified electrician.

🔀 Supports multiple switch types

The ZBMINIR2 works with various switch types via S1 and S2:

• Toggle switch (factory settings)
• Push button (momentary)
• SPDT switch (two-way switch for dual control)
• Door contact switch

Easily switch between switch types by pressing the button 3 times briefly.

🛠️ Extensive smart functions

• Detach Relay Mode: disconnect switch from the relay – ideal for smart lamps
• Inching Mode: relay closes automatically after an adjustable time (e.g., door or gate)
• Delay-On / Delay-Off: delayed switching on or off
• Delay Power-On: protection against power surges when switching on simultaneously after a power outage
• Power-on State: adjustable behavior after power interruption (on, off, or previous state)
• Timer Schedule: switch on/off at fixed times
• Group Control: control multiple ZBMINIR2s simultaneously
• Local Zigbee scenes: also works without an internet connection

🔗 Broadly compatible with popular smart home platforms

• Recommended SONOFF hubs: ZBBridge-P, NSPanel Pro, iHost, ZBBridge-U
• Other SONOFF hubs: ZBDongle-P, ZBDongle-E
• Amazon: Echo Plus 2nd Gen, Echo Show 2nd Gen, Echo 4th Gen
• SmartThings: SmartThings Hub V3
• Home Assistant: via Zigbee2MQTT ✅ (recommended) or ZHA (limited functionality)
• All other gateways supporting Zigbee 3.0

🏠 Local scenes – even without internet

The ZBMINIR2 supports local Zigbee scenes. Automations remain active even if your WiFi or internet connection fails.

⚠️ Safety warning

The ZBMINIR2 operates on 230V AC and must be installed by a certified electrician. Ensure that a 10A MCB or RCD (RCBO) is present before the ZBMINIR2. Never connect the S1/S2 terminals to the neutral or earth wire.

💡 Example automations

• 💡 Smart dimmable lamp: Detach Relay Mode → switch activates scene instead of interrupting power.
• 🚪 Electric lock: Inching Mode → door opens for 5 seconds and closes automatically.
• ⏰ Timer: switch light turns off automatically after 10 minutes via Delay-Off.
• 🌙 Two-way control: S1 and S2 → control from bed and at the door.
• 🏠 Leaving home: turn off all ZBMINIR2 relays via one scene in Home Assistant.

📦 Technical Specifications

❓ Frequently Asked Questions (FAQ)

What is the difference between ZBMINIR2 and ZBMINIL2?
The ZBMINIR2 requires a neutral wire (N) and is a Zigbee router. The ZBMINIL2 does not require a neutral wire but is not a router.

Can I keep the existing switch?
Yes! The ZBMINIR2 is mounted behind your switch. Your switch will continue to function, and you can control the device via app or automations.

Does it work with Home Assistant?
Yes, via Zigbee2MQTT fully including Detach Relay Mode. Functionality is limited via ZHA.

May I install the ZBMINIR2 myself?
No, installation must be carried out by a certified electrician (230V AC).

Can I use smart lights with the ZBMINIR2?
Yes, via Detach Relay Mode the lamp always remains powered, and the switch only activates a scene.

How do I reset the ZBMINIR2?
Three methods: press the button for 5 seconds, press the external switch 10 times quickly, or remove the device via the eWeLink app.

How many devices does the ZBMINIR2 support as a router?
Up to 64 Zigbee end devices.

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