1. Core Functions

• Over & Under Voltage Protection

  Automatically cuts off power when voltage exceeds the upper limit (overvoltage) or drops below the lower limit (undervoltage), and automatically reconnects after voltage returns to normal.

• WiFi Remote Control

  Supports mobile APP remote switching, real-time voltage display, fault alarm and historical record query.

• Automatic Reclosing

  After power failure due to abnormal voltage, it will automatically restore power supply after a delay when voltage is back to normal.

• Real-time Monitoring

  Displays real-time voltage, current, power and other data, and sends alarm notifications for abnormal conditions.

2. Main Technical Parameters

• Rated voltage: AC 220V (50/60Hz)
• Protection range:
  • Overvoltage: typically 240V–280V (adjustable)
  • Undervoltage: typically 170V–200V (adjustable)
• Rated current: 16A, 32A, 40A, 63A, 80A, 100A
• Operating delay: 2–60s (adjustable)
• Wireless protocol: WiFi 2.4GHz
• Installation: 35mm standard DIN rail mounting
• Protection class: IP20
• Certifications: CE, RoHS

3. Application Scenarios

• Household appliances: refrigerators, air conditioners, TVs, washing machines
• Shops, offices and small factories
• Precision electronic equipment
• Farm and breeding equipment
• Water pumps, motors and other electrical equipment

4. Advantages

• Intelligent protection without manual operation
• Remote control anytime and anywhere
• High sensitivity and fast response
• Stable performance and long service life
• Easy installation and wide compatibility