XLW1 series intelligent circuit breaker

XLW1 series intelligent circuit breaker (hereinafter referred to as breaker) is suitable for the circuit of AC 50/60Hz with rated voltage 400V, 690V and rated current up to 6300A .It is mainly used to distribute electric energy and protect circuit and power supply equipment from overload,under-voltage  short-circuit ,and single-phase earthing .With intelligent and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure . The breaker is applicable for power stations, factories , mines(for 690V) and modern high-building, especially for the distribution system of intelligent building.The breaker conforms to IEC60947-2. The whole series have past CCC certification and CE certification.

Environment Conditions for Operation

Temperature condition: -5℃~+40℃; the average value within 24h not exceed +35℃.

Elevation: altitude of installation place shall not exceed 2000m.

Atmosphere condition: relative humidity at +40℃shall not exceed 50%. Higher humidity is permissible at lower temperature condition. When the higher monthly average relative humidity is 90% in the humiddest month , the lowest monthly average temperature of this month is +25℃ And consider the influence of dew on product surface due to temperature changes.

Pollution grade: gradeIII.

The breaker should be installed according to the requirement on the instruction manual: the vertical inclination degree shall not exceed 5°

Specifications

Intelligent controller is one of the core components of the circuit breaker

1. properties of the intelligent controller

    a. Protective function of over-load long time-delay and inverse time limit, short time-delay and inverse time limit, short time-delay definite time limit instantaneous operation protection;

    b. Single-phase earthing failure protection;

    c. Display of setting current Ir and operational current;

    d. Ampere meter;

    e. Over-load alarm;

     f. Short-circuit alarm

    g. Testing of operational properties

    Note: The breakers with telecommunication port are available to realize remote control to breaker through master computer.

Protection performances of over-current release

Ir and its inaccuracy of the controller

Note: 1.When the breaker could realize over-load with long time delay .short-circuit with short time-delay and short-circuit instantaneous protections, 

the setting ratings can not be over-lapped ,and Ir1< Ir2< Ir3

2. When the frame is 3200A and above ,the setting ratings range from 1.01In to 75kA.