1. Product Overview
The SONOFF ZBM5-1C-120W is a Zigbee-based smart wall switch designed for controlling home lighting. It offers remote control capabilities via a smartphone application, voice control through compatible smart assistants, and integration into smart home scenes. This switch supports both wiring configurations: with or without a neutral wire, providing flexibility for various electrical setups. A SONOFF Zigbee Hub is required for its smart functionalities.
Image 1.1: SONOFF ZBM5-1C-120W Zigbee Smart Light Switch and its packaging.
2. Safety Information
WARNING: Risk of electric shock. Installation should be performed by a qualified electrician or service personnel. Ensure power is OFF at the circuit breaker before installation or maintenance.
- Do not install with wet hands.
- Do not use in excessively humid environments or expose to water.
- Ensure the device is securely mounted before operation.
- Adhere to all local electrical codes and regulations.
3. Package Contents
The product package includes:
- 1 x SONOFF ZBM5-1C-120W Smart Wall Switch
4. Setup and Installation
4.1 Wiring Instructions
The ZBM5-1C-120W smart switch is designed to be compatible with both neutral wire and no-neutral wire electrical systems. Always ensure the power is turned off at the circuit breaker before beginning any wiring.
- Power Off: Turn off the main power supply at your circuit breaker to prevent electric shock.
- Disassemble: Carefully pry off the switch module and power module from the mounting plate using a small screwdriver.
- Identify Wiring: Determine if your electrical circuit has a neutral wire. This is crucial for selecting the correct wiring method.
Image 4.1: Wiring diagram for both neutral and no-neutral configurations.
Image 4.2: Detailed diagram for neutral wire optional wiring.
- No Neutral Wire Required: Connect the Live (L) wire to the 'L' terminal and the Load (L1 Out) wire to the 'L1 Out' terminal. For this configuration, the connected load must be at least 3W.
- With Neutral Wire Required: Connect the Live (L) wire to the 'L' terminal, the Load (L1 Out) wire to the 'L1 Out' terminal, and the Neutral (N) wire to the 'N' terminal. This configuration supports smart lights as a load.
- Secure Wiring: Tighten the screw terminals to ensure secure connections for all wires.
- Mounting: Place the power module into the mounting box and secure it with screws.
- Install Switch Module: Snap the switch module back onto the power module.
- Power On: Restore power at the circuit breaker. The device will take approximately 10 seconds to power on and stabilize for the first time.
4.2 App Pairing
To enable smart features, the SONOFF ZBM5-1C-120W must be paired with a compatible SONOFF Zigbee Hub via the eWeLink app.
- Download eWeLink App: Download and install the eWeLink app from your device's app store.
- Open App and Scan: Open the eWeLink app, tap "+" or "Add Device", then select "Scan" to scan the QR code on the device for instructions.
- Initiate Pairing: Follow the in-app instructions. Typically, this involves long-pressing the button on the switch for 5 seconds until the LED indicator flashes slowly.
- Select Zigbee Gateway: In the app, select your SONOFF Zigbee gateway (e.g., ZBBridge-P).
- Complete Addition: Wait for the app to detect and add the device. Once added, you can control the switch via the app.
4.3 Installation Video Guide
Video 4.1: This video provides a step-by-step guide on how to install the SONOFF ZBM5 Zigbee Wall Switch, covering wiring and initial setup.
5. Operating Instructions
5.1 Remote Control via eWeLink App
Once paired with your SONOFF Zigbee Hub, you can control the ZBM5-1C-120W switch from anywhere using the eWeLink app on your smartphone. The app allows you to turn lights on or off, view the switch status, and manage advanced settings.
Image 5.1: Remote control of the smart switch via the eWeLink app.
5.2 Voice Control
Integrate your ZBM5-1C-120W with voice assistants like Amazon Alexa or Google Home for hands-free control. After binding your voice assistant account to the eWeLink app, you can use simple voice commands to manage your lights.
Image 5.2: Voice control of smart lighting using a smart speaker.
5.3 Timers and Scene Automation
Utilize the eWeLink app to set schedules for your lights or create smart scenes. For example, you can configure lights to turn on automatically when a Zigbee sensor detects motion, or set a timer for lights to turn off at a specific time.
Image 5.3: Smart scene automation example.
Image 5.4: Setting a schedule for lights to turn on.
5.4 Open-Source Platform Compatibility
The ZBM5-1C-120W can be integrated into open-source platforms like Home Assistant via Zigbee2MQTT or ZHA, allowing for seamless control and automation with devices from various manufacturers.
Image 5.5: Integration with Home Assistant via Zigbee2MQTT.
5.5 Detach Relay Feature
The detach relay feature allows smart lights to remain powered even when the wall switch is turned off, ensuring they stay online and responsive to smart commands. This feature is supported only in neutral-required mode.
Image 5.6: Explanation of the Detach Relay feature.
5.6 Product Features Video
Video 5.2: This video highlights the key features and benefits of the SONOFF Zigbee Smart Switch, including remote control, timing, and smart scene capabilities.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the switch. Do not use abrasive cleaners or solvents.
- Firmware Updates: Regularly check the eWeLink app for available firmware updates to ensure optimal performance and security.
- Environmental Conditions: Avoid exposing the switch to extreme temperatures, direct sunlight, or high humidity.
7. Troubleshooting
- Device Not Pairing:
- Ensure the SONOFF Zigbee Hub is powered on and within range.
- Confirm the switch is in pairing mode (LED indicator flashing slowly).
- Check the eWeLink app for any error messages or specific pairing instructions.
- Verify that the Zigbee hub's firmware is up to date.
- No Response from Switch:
- Check if the main power supply to the switch is on.
- Verify the switch is still connected to the Zigbee hub in the eWeLink app.
- If using a no-neutral setup, ensure the connected load meets the minimum 3W requirement.
- For open-source platforms like Home Assistant, ensure Zigbee2MQTT or ZHA configurations are correct and up-to-date, as some users have reported state synchronization issues.
- Voice Control Issues:
- Confirm that your voice assistant account is correctly linked to the eWeLink app.
- Check the internet connection of your smart speaker and Zigbee hub.
- Ensure the device name in the eWeLink app is recognized by your voice assistant.
8. Specifications
| Feature | Detail |
|---|---|
| Model | ZBM5-1C-120 |
| Product Dimensions | 4.72 x 2.91 x 1.55 inches |
| Weight | 1.1 Pounds |
| Operation Mode | ON-OFF |
| Current Rating | 10 Amps |
| Operating Voltage | 120 Volts |
| Contact Type | Normally Closed |
| Connector Type | Crimp |
| Brand | SONOFF |
| Switch Type | Push Button |
| Terminal | Screw |
| Material | Plastic |
| Manufacturer | SONOFF |
| Date First Available | November 19, 2024 |
Image 8.1: Detailed product specifications for the ZBM5 series.
Image 8.2: Dimensions of the SONOFF ZBM5 smart switch.
9. Warranty and Support
For warranty information and technical support, please refer to the official SONOFF website or contact their customer service directly. You can also visit the SONOFF Store on Amazon for additional resources.
