Phase loss protection relay MPR-6M

temperaturepower factorcurrent

The MPR-6M Multifunction Protection Relay is suitable for circuit protection and monitoring of electrical lines and distribution cabinets. It can monitor various parameters in real time, such as current, voltage, power, and electric energy. It is particularly ideal for safety protection of critical power supply lines, fire power distribution, industrial power cabinets, computer rooms, and intelligent building power distribution systems. The device has a built-in Class 0.2 high-precision measurement unit, with standard 2-way DO output, 2-way DI input (expandable to 4-way), 4-way temperature sensors, and 2-way residual current monitoring. It supports multiple protection action modes including overcurrent, overvoltage, and undervoltage. Via RS485 communication, it can upload data to SCADA, EMS, and smart operation and maintenance platforms. It also features functions like sound and light alarm, remote control, and automatic tripping. - Protection function: Overvoltage, Undervoltage, Overcurrent stall, Undercurrent, Overload, Underload, Phase failure (Phase loss), Current imbalance, Under power, Ground fault, Short circuit, External failure, Overtemperature, Module failure, Abnormal frequency, Abnormal power factor. - Feature: Class 0.2, real-time measurement of key electrical parameters; Protection for overcurrent, over/undervoltage, etc. (including residual current); 2 relay outputs (custom logic); 4 expandable passive digital inputs; 4-channel temperature monitoring (equipment/cabinet protection); 2 residual current channels (electrical fire detection); Supports RS485 Modbus RTU communication; Built-in sound-light alarm; manual mute/reset/self-test. - Application: Feeder protection/monitoring in low-medium voltage systems; Industrial cabinet: electrical fire prevention & fault isolation; Protection for transformers, generators, motors; Data acquisition for SCADA, EMS, power management platforms; Safety monitoring: smart buildings, industrial plants, etc. - Specification: Power grid mode: 1P2W, 3P3W, 3P4W; Power supply: AC/DC 85-265V, 45-65Hz; Consumption: ≤5VA; Data refresh frequency: 1S; Rate value: 100V/220V/380V; Overload: 1.2Un; Power consumption: 100kΩ turns off; DO: 2 channels, Relay contact capacity: 5A@250VAC; 5A@30VDC; Communication: RS485, Modbus-RTU or Ethernet, Modbus-TCP/IP; Pulse output: 1 channel, pulse width 80ms, photoelectric isolation; Pollution degree: 2; Overvoltage category: CATIII@277/480VAC; Insulation capability: 2kV AC RMS 1 minute, between input / output / case / power supply; Discharge immunity test: IEC-61000-4-2 level 4 @8kV; Fast transient burst immunity test: IEC61000-4-4 level 3 @Input 1kV; Power supply 2kV; Surge (Shock) immunity test: IEC61000-4-5 level 4 @Common mode: 4kV; Working temperature: -10°C ~ +55°C; RH 5% ~ 95% (non-condensation); Storage temperature: -40°C ~ +85°C; RH 5% ~ 95% (non-condensation); SOE record: 60 lists, (30 lists DI/DO SOE and 30 lists Alarm SOE); Dimension: 110mm×108mmx66mm (W*H*D), 35mm Din-rail mounting.