Model and meaning

Main functions and features

Using high-performance 32-bit ARM microprocessor, real-time signal processing and intelligent control;

LCD Chinese display, provoke anxious interface friendly, easy to operate;

The remaining Chinese display (leakage) protection, the remaining current stalls can be set online, with reclosing function;

Real-time monitoring track line residual current, automatically adjust the stalls to ensure that the product put into operation rate and reliability;

Long delay, short delay and instantaneous three sections of protection, the use of electronic tripping, and power supply voltage has nothing to do;

With a high breaking capacity, to ensure the reliability of short circuit protection;

Overvoltage protection, undervoltage protection, phase failure protection

Line residual current, three-phase power supply voltage, load current real-time display;

Protection functions and parameters can be set online to modify;

Tripping type (with current, latch, overload, undervoltage, overvoltage, phase loss) identification, display, and can store, query, delete.

The network type has the communication function, may realize the long-distance letter, the telemetry, the remote control, the remote control.

Circuit Breaker Classification and Function

Description of protection characteristics

The main technical parameters

Technical parameters

When the residual current is greater than the floating value of the second gear does not reach the action value and the stability of the maintenance of 60s, the stalls floating a file, and so on, until the maximum gear; when the remaining current is less than the gear of the next gear floating value Stable to maintain 120s, the stalls down a file, and so on, until the minimum gear. To "Auto 2" gear, the line accident residual current of 100mA, for example. Circuit breaker power, stalls automatically set at 300mA file. After the residual current is increased to 150mA or more and stabilized for 60s, the range is changed to 500mA. The residual current is reduced to below 150mA and stabilized for 120s.

Automatic reclosing

When the residual current exceeds the operating current value of the gear action trip, after 20 to 60 seconds to automatically reclose, but no manual closing time limit. If the fault current is not removed, the circuit breaker trips again and closes, and it can not be automatically reclosed. It must be manually operated to close the circuit breaker in the normal operation of the circuit breaker within 5 seconds after closing.

Overvoltage protection

When the line phase voltage is higher than the over-voltage protection set value, the circuit breaker protection trip. When the line voltage back to normal voltage, the breaker shell automatically put into operation. Overvoltage protection settings range from 250V ~ 300V, factory set to 280V, the user can set or turn off their own protection.

Undervoltage protection

When the line phase voltage is below the undervoltage protection setpoint, the breaker protection trips. When the line voltage back to normal voltage, the breaker shell automatically put into operation. Undervoltage protection settings range from 150V ~ 200V, factory or even 170V, the user can set or turn off their own protection.

Phase protection function

Circuit breaker protection trips when phase loss occurs at the line supply side. When the line back to normal voltage, the shell automatically put into operation.

Linkage protection

Through the linkage interface can be linked with other fire protection equipment, as follows:

Appearance and installation dimensions(mm)

Characteristic curve