LED Display Smart Motor Protector
This smart motor protector is designed for motors with rated voltage of AC380V/660V. It offers optional leakage protection, RS485 communication, and analog output, with 2 channels DI passive dry node input and 4 channels DO output.





Technical Specifications
Product Overview
Intelligent Motor Protection Solution
The ARD series intelligent motor protector is a comprehensive monitoring and protection solution designed for AC380V/660V motors. It provides real-time protection against critical faults such as overload, phase failure, and short circuits while offering SOE fault recording for streamlined maintenance. With integrated RS485 communication and analog outputs, it seamlessly connects to PLC and PC systems for advanced remote industrial monitoring.
Key Performance Metrics
Performance Highlights
Protection Functions
- Comprehensive Protection
- Start TimeoutOverloadPhase FailureUnbalanceUnder LoadGround/LeakageBlockageShort CircuitExternal Fault
Technical Specifications
Rated Voltage Support
- AC 380V
- AC 660V
- Frequency Range
- 45-65Hz
- Auxiliary Power Supply
- AC 85V~265V / DC 100V~350V
Connectivity & Interface
I/O and Communication
- RS485 Remote Communication Interface
- DC 4-20mA Analog Output
- 2 Channels DI Passive Dry Node Input
- Built-in DC 24V Signal Power Supply
- 4 Channels DO Output
Supported Protocols
Application Areas
- Target Industries
- Coal MinesPetrochemicalSmeltingElectric PowerShipsCivil ConstructionMetallurgy
Monitoring Features
Measured Parameters
- Current
- Voltage
- Power
- Energy
- Frequency



