1. Introduction
The LoraTap Tuya Smart Life ZigBee 3.0 Curtain Blind Switch is designed to provide intelligent control over your roller shutters and electric motors. This smart switch integrates seamlessly into your Tuya ZigBee smart home ecosystem, offering convenient control via touch panel, smartphone app, and voice commands through Google Assistant and Amazon Alexa.

LoraTap Tuya ZigBee Curtain Switch
2. Safety Information
- WARNING: Turn off electrical power at the circuit breaker before installation or maintenance. Failure to do so may result in serious injury or death.
- This switch is designed for AC motors only. It cannot work with DC Motors.
- Ensure your motor has at least 3 wires (Live Wire 1, Live Wire 2 for OPEN/CLOSE, and Neutral wire) for proper connection. A 4-wire motor (including Green/Yellow Earth Wire) is also compatible, but the switch does not require an Earth Wire connection.
- Installation should be performed by a qualified electrician or in accordance with local electrical codes.
- Do not expose the device to moisture or extreme temperatures.
3. What's in the Box?
- 1 x ZigBee Curtain Switch
- 1 x User Guide
- 1 x Terminal
- 2 x Screws
- 1 x Screwdriver
- 1 x Blue Wire

Package Contents
4. Specifications
| Feature | Detail |
|---|---|
| Model Number | SCAE400ZB-EU |
| Brand Name | LoraTap |
| Input Voltage | 100-250VAC, 50/60Hz |
| Max Load / Wattage | 600W |
| Wireless Protocol | Tuya ZigBee 3.0 |
| Dimensions | 86mm x 86mm x 35mm |
| Certification | CE, RoHS |
| Battery Included | No |
| High-concerned chemical | None |

Product Features and Dimensions
5. Installation
Before proceeding with installation, ensure the main power supply is turned off at the circuit breaker to prevent electrical shock.
5.1. Pre-installation Check
- Verify your motor is an AC motor (100-250VAC, 50/60Hz). This switch is not compatible with DC motors.
- Confirm your motor has at least 3 wires: Live Wire 1, Live Wire 2 (for OPEN and CLOSE), and a Neutral wire. If your motor has 4 wires (including a Green/Yellow Earth Wire), the Earth Wire does not need to be connected to the switch.

Motor Wiring Requirements and Switch Dimensions
5.2. Wiring Instructions
The switch is suitable for standard junction boxes with a 60mm diameter in various countries.

Junction Box Compatibility
- Step 1: Open the Panel. Carefully pry open the glass panel of the switch using a flathead screwdriver. This prevents scratching or breaking the panel during wiring.
- Step 2: Connect Wires. Refer to the wiring diagram below. Connect the wires from your AC power supply and motor to the corresponding terminals on the switch.
- Input L (Live Wire): Connect the Red, Brown, or Black wire from your AC power.
- Input N (Neutral Wire): Connect the Blue wire from your AC power.
- Output L1: Connect the Brown wire from the motor.
- Output L2: Connect the Black wire from the motor.
- Output N (Neutral Wire): Connect the Blue wire from the motor.
Tip: Connect both the Input Neutral Wire (Blue) and Output Neutral Wire (Blue) to the 'N' terminal on the switch.
- Step 3: Secure the Back Plate. Fix the back plate of the switch onto the wall junction box using the provided screws.
- Step 4: Attach the Glass Panel. With the power still off, carefully press the glass panel back onto the secured back plate until it clicks into place. Installing the panel with power on may cause product malfunction.

Detailed Wiring and Installation Steps
6. Initial Setup and App Configuration
6.1. ZigBee Hub Requirement
This LoraTap ZigBee 3.0 curtain switch requires a Tuya ZigBee Hub to function. Ensure you have a compatible Tuya ZigBee Hub already set up. This switch is designed to work exclusively with Tuya ZigBee Hubs and may not be compatible with other brands' ZigBee Hubs.

Tuya ZigBee Mesh Network with Hub
6.2. App Download and Pairing
- Download the 'Tuya Smart' or 'Smart Life' app from the Apple App Store (for iPhone) or Google Play Store (for Android).
- Open the app and log in or create a new account.
- Ensure your Tuya ZigBee Hub is powered on and connected to your network.
- In the app, add your ZigBee Hub if you haven't already.
- Follow the app's instructions to add a new device. The switch should be detected and paired with your ZigBee Hub.
- Once paired, you can rename the switch and configure its settings within the app.

Compatible with Tuya Smart/Smart Life App, Alexa, and Google Assistant
7. Operating Instructions
7.1. Touch Panel Control
The switch features a touch-sensitive glass panel for direct control:
- Touch the 'Up' arrow to open the curtain/blind.
- Touch the 'Down' arrow to close the curtain/blind.
- Touch the 'Pause' button to stop the curtain/blind at its current position.
7.2. App Control (Tuya Smart / Smart Life)
Through the Tuya Smart or Smart Life app, you can control your curtain switch from anywhere using your mobile network (2G, 3G, 4G, or Wi-Fi).
- Open/Close/Pause: Directly control the curtain's movement.
- Percentage Control: Set the curtain to open or close to a specific percentage (e.g., 50% closed).

Percentage Control via App
- Schedule & Timing: Set specific times for the curtain to open or close automatically.

Schedule and Timing Settings
- Sunrise/Sunset Automation: Configure automated actions based on local sunrise and sunset times.

Sunrise/Sunset Automation Setup
- Check Shutter Status: View the current status of your curtains/blinds from anywhere.

Remote Control and Status Check
- Group Function: Create groups to control multiple curtain switches simultaneously.

Group Control and Device Sharing
- Device Sharing: Share control of the switch with family members through the app.
7.3. Voice Control
Integrate your LoraTap switch with Amazon Alexa or Google Assistant for hands-free voice control.
- Link your Tuya Smart/Smart Life account to your Alexa or Google Home app.
- Use commands like:
- "Alexa, turn on the curtain."
- "Hey Google, close the blinds."
- "Alexa, set the curtain to 50 percent."

Voice Control with Alexa and Google Assistant
7.4. Light Mode
The switch is designed with no constant light, which is beneficial for sleeping environments. You can also adjust the light mode settings within the app if desired.

No light on the switch unless touched, ideal for sleeping
8. User Tips
- For optimal performance, ensure your Tuya ZigBee Hub is centrally located within your home to provide good signal coverage to all ZigBee devices.
- Regularly check the Tuya Smart/Smart Life app for firmware updates for both the switch and your ZigBee Hub to ensure the best compatibility and features.
- When setting up schedules or automations, test them thoroughly to ensure they function as expected before relying on them for daily use.
9. Maintenance
- To clean the glass panel, gently wipe it with a soft, dry, or slightly damp cloth.
- Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the surface.
- Ensure the power is off before cleaning to avoid accidental operation or electrical hazards.
10. Troubleshooting
- Switch not responding: Check if the main power supply is on. Verify wiring connections are secure. Try restarting the ZigBee Hub.
- Cannot pair with app: Ensure you have a Tuya ZigBee Hub and it's online. Make sure the switch is in pairing mode (refer to app instructions for specific steps). Check Wi-Fi signal strength for the hub.
- Voice control not working: Confirm the switch is correctly linked to Alexa/Google Assistant through the Tuya Smart/Smart Life app. Check your internet connection and the status of your voice assistant device.
- Motor not moving: Double-check motor wiring (L1, L2, N). Ensure the motor is an AC type and within the 600W maximum load.
- Curtain stops unexpectedly: This could indicate an issue with the motor or an obstruction. Check the motor for any faults or blockages.
11. Warranty and Support
For detailed warranty information, technical support, or further assistance, please refer to the official user manual PDF provided by LoraTap. You can access the comprehensive user manual at: LoraTap ZigBee Curtain Switch User Manual (PDF).





