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Prodcut Details
The Soltree ST2-VAK Over/Under Voltage & Current Protector with Energy Metering is an intelligent multifunctional protection device designed to safeguard electrical systems and monitor energy consumption in real time. It integrates overvoltage, undervoltage, and overcurrent protection with a precise kWh metering function. Equipped with a large LED digital display and advanced microcontroller control, this protector ensures accurate monitoring, stable operation, and enhanced safety for residential, commercial, and industrial applications.
Over/Under Voltage Protection – Automatically disconnects when voltage exceeds or drops below the preset range.
Overcurrent Protection – Prevents overloads and protects electrical equipment from current surges.
Energy Metering Function – Displays total energy consumption (kWh) for monitoring and analysis.
Large LED Digital Display – Clear real-time display of voltage, current, and energy parameters.
Adjustable Parameter Settings – Easily configure voltage, current, and delay parameters.
Microcontroller-Based Intelligent Control – Ensures precise, stable performance and long service life.
Customizable Logo Display – Supports OEM/ODM customization and branding.
DIN-Rail Mounting – Compact design for simple and efficient installation.
| Item | Specification |
|---|---|
| Supply Terminals | N, L |
| Rated Supply Voltage | AC 220V / DC 85–300V |
| Rated Frequency | 40/50/60Hz |
| Voltage Setting Range | AC130–300V / DC138–300V |
| Undervoltage Setting Range | AC80–210V / DC85–210V |
| Voltage Hysteresis | 5V |
| Overvoltage Trip Delay | 0.5s |
| Voltage Accuracy | <1% |
| Max Operating Phase Voltage | 350V |
| Max Operating Current | 40A / 63A / 80A / 100A |
| Altitude | ≤2000m |
| Relative Humidity | ≤90% at 40°C (non-condensing) |
| Ambient Temperature | -25°C to +55°C |
| Installation | 35mm DIN rail |
| Size | 81 × 36 × 66mm |
Residential: Protect home appliances and monitor power usage in real time.
Commercial: Ensure stable voltage and track energy consumption in offices, shops, and restaurants.
Industrial: Protect motors, pumps, and equipment while measuring energy performance.
Renewable Energy Systems: Suitable for solar power systems and backup power installations.
Parameter Adjustment: Long press the “SET” key for 5 seconds to enter setup mode.
Use the UP and DOWN keys to modify overvoltage, undervoltage, current, and delay parameters.
Energy Display: The kWh value can be viewed or reset according to system requirements.
Quick Adjustment Tip: For faster value changes, hold down the UP or DOWN key continuously.
Thank you for choosing Soltree Electrical Appliance Co., Ltd.
We are dedicated to providing innovative electrical protection products and professional technical support for global customers.
📞 Tel/WhatsApp: +86-15658672325
📧 Email: jacky@cnsoltree.com
👉 We respond to all inquiries within 12 hours.
Soltree is a professional manufacturer of low-voltage electrical products with over 15 years of industry experience. We specialize in circuit breakers, RCCBs, surge protectors, power meters, and smart WiFi devices, providing reliable solutions for residential, commercial, and industrial applications.
Our products boast customizable materials and dimensions, ensuring a tailored experience. With a range of materials to choose from and the ability to adjust sizes to your liking, our offerings are designed to meet your unique needs and preferences.
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