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Zhejiang Jiuji Electric Co., Ltd.
Zhejiang Jiuji Electric Co., Ltd.
The Jiuji Electric Three-Phase WiFi Smart Voltage Protector offers comprehensive voltage, current, and temperature protection for industrial and commercial systems. With WiFi connectivity, users can remotely monitor real-time data such as voltage, current, power (kW), power factor (PF), frequency (Hz), and reactive power (kVar). Its built-in temperature sensor provides automatic overload protection, ensuring safe, reliable, and efficient operation at all times.
The JIUJI JJMVPD3-63LW is a multifunctional smart protection and energy monitoring device designed for three-phase power systems. It integrates leakage current protection, voltage protection, current protection, phase sequence protection, energy metering, and power analysis into one compact unit. The device also provides real-time frequency (Hz) and power factor (PF) monitoring for comprehensive power system analysis.
With built-in WiFi connectivity and Modbus communication support, it enables remote monitoring and advanced energy management.
Ideal for industrial plants, commercial buildings, distribution panels, solar PV systems, and electrical equipment protection applications.
• Adjustable Leakage Current Protection (15mA – 300mA)
• Overvoltage Protection
• Undervoltage Protection
• Overcurrent Protection
• Phase Sequence Protection
• Power Protection
• Energy Metering (kWh)
• Real-Time Active Power Display
• Real-Time Reactive Power Monitoring
• Instantaneous Total Power Display
• Real-Time Voltage and Current Monitoring
These functions allow users to analyze load performance, optimize power usage, and reduce energy costs.
With WiFi connectivity, users can:
• Monitor voltage, current, active power, and reactive power in real time
• Track energy consumption remotely
• Perform remote ON/OFF control
• Receive fault alarms and notifications
• Manage data via mobile application
Compatible with SmartLife and Tuya platforms for intelligent energy management.
In case of:
• Three-phase overvoltage
• Undervoltage
• Overcurrent
• Leakage current
The device automatically disconnects the circuit to protect connected equipment.
Once the electrical parameters return to normal, the relay automatically restores power after the preset delay time.
Effectively protects equipment against voltage fluctuations, unstable grids, and abnormal load conditions.
Model: JJMVPD3-63LW
Rated Current: 63A
Width: 126 mm (7 modules)
Installation: DIN Rail Mounting
During protection, both Phase and Neutral are disconnected simultaneously.
• Operating Temperature: -20°C to +55°C
• 24-hour average temperature must not exceed +35°C
• Relative humidity at +40°C must not exceed 50%
• Maximum installation altitude: 2000 meters
• Pollution Degree: 3
The device should be installed in environments protected from rain, snow, and explosion risks.
No corrosive gases or conductive dust should be present. Proper measures must be taken to prevent condensation.
