Technical Specifications Full motor‑oriented protection function set including overload, locked‑rotor, phase‑unbalance, earth‑fault and negative‑sequence protection. Custom‑configured analog input, binary input and binary output channels. Supports IEC61850, Modbus TCP, IEC60870‑5‑103 communication protocols. Auxiliary power supply 80‑250 V DC / 85‑265 V AC. Typical power consumption 12.4 W. Operating temperature ‑25 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Front‑panel protection grade IP40, rear terminals IP20. CE and IEC standard certifications are applicable.
Functional Features Provides comprehensive protection for medium‑voltage industrial motors. Measures motor current, voltage, active‑reactive power and thermal accumulation value. Collects motor circuit‑breaker auxiliary contact signals, realizes local and remote motor start‑stop control. Stores sequence‑of‑event logs and high‑resolution disturbance waveforms. Front‑panel HMI supports on‑site parameter setting and status browsing. LED indicators reflect power supply, running, trip and alarm status. Built‑in hardware self‑diagnosis monitors internal component operating status continuously.
Application Scenarios Placed inside medium‑voltage motor control cabinet. Applied for motor protection and monitoring in heavy‑industry enterprises. Suitable for automation projects with customized I/O channel requirements.
Installation Requirements Secure device firmly inside medium‑voltage motor control cabinet. Connect auxiliary power supply within rated operating voltage scope. Wire CT, VT and binary loops strictly following engineering schematic drawings. Deploy communication cables for remote monitoring function. Download motor‑protection settings and project configuration files by supporting engineering software. Complete protective grounding complying with industrial standards. Inspect front‑panel LED working state after power‑on.
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