SINOTIMER SVP688W Tuya WiFi Smart Circuit Breaker & Energy Protector User Manual

1. Safety Information

Please read this manual carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or other serious injury or damage.

Installation and maintenance should only be performed by qualified electricians.
Ensure the main power supply is disconnected before any installation or wiring work.
Do not operate the device with wet hands or in damp environments.
Verify all connections are secure and correctly wired according to the diagram.
This device is designed for AC 220V/230V systems. Do not use it with other voltage systems.
The device is rated for 1-63A. Do not exceed the maximum current rating.

2. Product Features

The SVP688W offers a comprehensive suite of features for smart electrical management:

Remote Control: Turn ON/OFF the circuit breaker from anywhere using your smartphone.
Real-time Monitoring: View current, voltage, leakage current, and total kWh consumption directly on the device's display or via the mobile app.
Adjustable Protection Parameters:
- Over Voltage Protection: Adjustable from 240V-300V (default: 275V).
- Under Voltage Protection: Adjustable from 145V-210V (default: 175V).
- Over Current Protection: Adjustable from 1A-63A (default: 63A).
- Electric Leakage Protection: Adjustable from 10-99mA (default: 50mA). This feature can be turned off.
Reconnect Time (Delay on Time): Adjustable from 10s-99s (default: 30s).
Over Current and Leakage Protect Times: Adjustable from 1-30 (default: 5). This feature can be turned off.
Over Temperature Protection: 10-85°C (settable only via the app).
Multiple Timing Modes: Supports timing mode, countdown mode, and cycle timing.
Clear Display: Features a colorful LED display for easy readability of parameters.

SINOTIMER SVP688W Smart Circuit Breaker with Colorful LED display and mobile app interface — The SVP688W device showing its colorful LED display and a representation of the mobile app interface for monitoring.

3. Specifications

Parameter	Value
Brand Name	SINOTIMER
Model Number	SVP688W
Rated Supply Voltage	AC 230V
Rated Frequency	50/60Hz
Operation Voltage Range	AC80V-400V (single phase)
Electric Current (>A)	1-63A
Over Voltage (>U) Setting Range	240V-300V (adjustable, default: 275V)
Under Voltage (<U) Setting Range	145V-210V (adjustable, default: 175V)
Electric Leakage Protection	10-99mA (off, default: 50mA, can be turned off)
Reconnect Time (Delay on Time)	10s-99s (default: 30s)
Over Current & Leakage Protect Times	1-30 (off, default: 5, can be turned off)
Over Temperature Protect	10-85°C (App only)
Power Display Range	0-99999.9kWh
Operating Temperature	-30°C to 70°C
Dimensions (L x W x H)	85mm x 36mm x 65mm
Power Source	AC
Certification	CE, RoHS
Origin	Mainland China

Product dimensions and parameters table from user manual — Detailed product dimensions and a summary of electrical parameters.

4. Package Contents

The package typically includes:

1 x SINOTIMER SVP688W Smart Circuit Breaker & Energy Protector
1 x User Manual (this document, or a printed version)

SINOTIMER SVP688W device in packaging with a small instruction sheet — The SVP688W device as received in its packaging, alongside a quick start guide.

5. Installation

Professional installation by a qualified electrician is highly recommended.

5.1 Wiring Diagram

The device is a 2-pole (2P) circuit breaker. Connect the Live (L) and Neutral (N) wires to the "IN" terminals at the top and the load wires to the "OUT" terminals at the bottom. Ensure correct polarity.

IN (Top Terminals): Connect the incoming Live (L) and Neutral (N) power supply.
OUT (Bottom Terminals): Connect the outgoing Live (L) and Neutral (N) wires to your load (appliances/circuit).

Front view of the SINOTIMER SVP688W device showing IN and OUT terminals — Front view of the device, clearly indicating the "IN" (input) and "OUT" (output) terminals for wiring.

SINOTIMER SVP688W device installed in an electrical panel — Example of the SVP688W device installed within an electrical distribution panel.

5.2 Mounting

The device is designed for DIN rail mounting. Snap it onto a standard 35mm DIN rail within your electrical panel.

6. App Setup (Tuya Smart / Smart Life)

To utilize the smart features, connect your device to the Tuya Smart or Smart Life app:

Download the App: Scan the QR codes below or search for "Smart Life" or "Tuya Smart" in Google Play Store (Android) or Apple App Store (iOS).

Instructions and QR codes for downloading the Smart Life/Tuya Smart app.
Create an Account: Open the app and create an account using your mobile number or email.
Connect to Wi-Fi: Ensure your mobile phone is connected to a 2.4 GHz Wi-Fi network. The device does not support 5 GHz Wi-Fi.
Add Device:
- In the app, click "+" in the upper right corner of the homepage or "Add Device".
- Select "Switch module (Wi-Fi)" from the "Energy" category.
- On the SVP688W device, long press the "WIFI" button for 5 seconds until the WIFI indicator starts to flash quickly.
- Follow the on-screen prompts in the app to pair the device. You may need to confirm the indicator is blinking rapidly and enter your 2.4 GHz Wi-Fi network password.
Reset Device (if needed): If pairing fails, press and hold the "RESET" button (often the "SET" button or a dedicated reset button, refer to the device's physical layout) for 5 seconds until the indicator blinks. Then try adding the device again.

Screenshot of the Tuya Smart app showing energy consumption data — Example of energy consumption data displayed within the mobile application.

Screenshot of the Tuya Smart app settings menu — Settings menu within the mobile application, allowing customization of various parameters.

7. Device Operation

7.1 Display Functions

The device's colorful LED display shows real-time electrical parameters:

V: Voltage (Volts)
A: Current (Amperes)
KW/h: Total Energy Consumption (Kilowatt-hours)
mA: Leakage Current (Milliamperes)

Close-up of the SVP688W device display showing voltage, current, and kWh — Close-up view of the device's display, showing real-time voltage, current, and energy readings.

7.2 Button Functions

The device features several buttons for local control and setting adjustments:

PULSE: Indicator for energy pulse output.
SET: Used to enter/confirm settings.
▲ (Up Arrow): Used to increase values or navigate menus.
▼ (Down Arrow): Used to decrease values or navigate menus.
WIFI: Used for Wi-Fi pairing mode.
Power Button (Red): Manual ON/OFF control for the circuit.

7.3 Parameter Settings (Local)

You can adjust protection parameters directly on the device:

View Data: Press the ▲ or ▼ buttons to cycle through different displayed data (Voltage, Current, Leakage, etc.).
Enter Setup Mode: Long press the SET button for 5 seconds. The display will change, indicating you are in setup mode.
Select Parameter: Press the SET button repeatedly to cycle through the adjustable parameters (e.g., Over Voltage, Under Voltage, Over Current, Leakage Protection, Reconnect Time).
Adjust Setting: Once the desired parameter is displayed, use the ▲ and ▼ buttons to adjust its value.
Confirm Setting: Press the SET button again to confirm the adjusted value and move to the next parameter, or exit setup mode if no further adjustments are needed.

7.4 kWh Reset

To reset the total kWh energy consumption reading:

Long press the SET button for 12 seconds.
The screen will display "PASS".
Use the ▲ and ▼ buttons to set the value to "222".
Press the SET button to confirm the kWh reset.

8. User Tips

The colorful LED screen is quite bright. Be aware that there might not be an option to dim or turn off the backlight directly on the device.
The device's interface is in English, making it user-friendly for English speakers.
A useful feature is its ability to display voltage even when the circuit is in the "off" position, which can be helpful for diagnostics.
The mobile app integration (Tuya Smart/Smart Life) is convenient for remote monitoring and control, as well as for setting advanced parameters like over-temperature protection.
For accurate readings and optimal performance, ensure all wiring connections are tight and secure.

9. Troubleshooting

Problem	Possible Cause / Solution
Device not powering on.	Check incoming power supply. Verify wiring connections (L and N) are correct and secure. Ensure the manual power button is in the ON position.
Cannot connect to Wi-Fi / App.	Ensure your Wi-Fi network is 2.4 GHz. 5 GHz networks are not supported. Check Wi-Fi signal strength at the device's location. Make sure the device's WIFI indicator is flashing rapidly during pairing. If not, long press the WIFI button for 5 seconds to enter pairing mode. Try resetting the device (long press SET/RESET button for 5 seconds) and re-attempt pairing. Ensure your phone is connected to the same 2.4 GHz Wi-Fi network during setup.
Incorrect voltage/current readings.	Verify wiring connections are tight and correct. Ensure the device is installed correctly in series with the load. Compare readings with a calibrated multimeter to confirm accuracy.
Device trips frequently.	Check the set thresholds for over voltage, under voltage, over current, and leakage protection. They might be too sensitive for your load. Inspect the connected load for faults or excessive current draw. Ensure there is no actual leakage current in the circuit.
Device is not 2-pole (2P) as advertised.	The product is designed as a 2P device. If you received a different configuration, please contact your seller immediately for verification and replacement.

10. Frequently Asked Questions (FAQ)

Q: Does this device measure and store instantaneous volts and amps, and does it act as a life saver (RCD)?: A: Yes, the device measures and displays instantaneous voltage and current. It also calculates and stores total energy consumption (kWh). Furthermore, it acts as a protector against over/under voltage, over current, and leakage current (similar to an RCD function for leakage protection).

11. Warranty and Support

For warranty information and technical support, please refer to the documentation provided with your purchase or contact the SINOTIMER Official Store directly. You can also refer to the official PDF user manual for more detailed instructions: View User Manual (PDF).