The product can not only provide indirect contact protection, and effectively prevent fire hazards caused by device insulation damage and ground fault current generation, but also can be used to distribute electric energy to protect lines and Overvoltage protection, undervoltage protection, phase loss protection and neutral wire missing protection.In addition, the built-in high-precision measurement device realizes high-precision and reliable power measurement and power quality data detection. RS485 communication functions, and can also plug in standard communication modules to support 4G, HPLC, WIFI communication, and realize remote signaling, telemetry, remote control, and remote adjustment.

Main Functions and Features

◆ High-performance 32-bit ARM microprocessor is used to carry out signal processing and intelligent control in real time;

◆ LCD Chinese/English display provides friendly HMI and simple operation;

◆ For residual current (leakage) protection, the residual current gear can be set online, with reclosing function;

◆ Monitor and track the residual current of the line in real time, and automatically adjust the gear to ensure the operation rate and reliability of the product;

◆ Long delay, short delay and instantaneous three-stage protection, electronic tripping mode is applied, which is independent of supply voltage;

◆ High breaking ability could ensure the reliability of short circuit protection for the line;

◆ Overvoltage protection, undervoltage protection, phase loss protection and neutral wire missing protection: Protection functions and parameters can be set and modified online;

◆ Real-time display of line residual current, three-phase supply voltage and load current; Real-time measurement of parameters such as active power, reactive power, apparent power & power factor;

◆ Trip types (residual current, locking, overload, undervoltage, overvoltage, phase loss, fault neutral line) can be identified & displayed, and can be stored, inquired & deleted;

◆ Functions of remote communication, telemetry, remote control and remote adjustment are supported; 

HPLC pluggable module and micro-power Bluetooth wireless communication;

◆ 0.05ln-1.2ln metering can reach level 1.0; Real-time monitoring of the temperature of the incoming connector bar (optional);

◆ Accumulation of three-phase active power; Modes such as time control & cost control are optional, and the application is more flexible;

◆ Support DL/T645 protocol and Modbus protocol, and automatic identification is achieved; Support online remote upgrade, which is convenient for maintenance and upgrade;

◆ Accuracy grade: The highest accuracy of current and voltage can reach 0.5s; The accuracy of active and reactive power can reach level 1, and the residual current can reach level 2.

CBRM3EL-Circuit break with residual current protection (metering)sample