Technical Specifications Overload, locked‑rotor, phase‑unbalance, earth‑fault and under‑voltage protection function groups. Custom‑configured analog input, binary input and binary output channels. Supports Modbus RTU communication protocol. Auxiliary power supply 85‑265 V AC / 80‑250 V DC. Typical power consumption 9.2 W. Operating temperature ‑20 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Front‑panel IP40, rear terminals IP20. Meets CE and IEC motor‑protection standards.
Functional Features Executes dedicated multi‑function protection for industrial AC motors. Completes measurement of motor current, voltage and thermal accumulation value. Collects motor switchgear position signals, supports local and remote motor start‑stop control. Saves fault event records and fault parameter data. Front‑panel man‑machine interface realizes local status viewing and parameter adjustment. LED indicators show power, running, trip and alarm information. Built‑in hardware self‑diagnosis detects internal abnormalities and outputs alarm signals.
Application Scenarios Mounted inside motor control cabinet. Applied for motor protection of industrial production equipment. Suitable for projects requiring customized I/O configuration for motor protection devices.
Performance Parameters Protection operation speed complies with industrial motor protection standards. Fault log stores key fault sampling data. Measurement accuracy satisfies on‑site motor monitoring specifications. Hardware faults generate definite alarm output.
Installation Requirements Secure device inside motor control cabinet. Connect auxiliary power supply within rated operating voltage range. Wire CT, VT and binary loops strictly following engineering schematic drawings. Deploy communication cables for remote monitoring function. Configure motor protection parameters through front‑panel or supporting software. Complete protective grounding complying with industrial specifications. Inspect LED indication after power‑on.
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