■ The main features of this product are：

High Reliability: Under rated current, the allowable breaking times are as high as 20,000. Under rated short-circuit current, the test breaking times are 50.

Comprehensive Functions: It can ideally switch resistive, capacitive, and inductive loads.

Low Maintenance: Usually, only a small amount of cleaning or lubrication of the operating mechanism is required.

Vertical insulation bushings are adopted to resist the impact of various environments. Therefore, the circuit breaker can be applied to various special environmental conditions.

Complete Product Series Parameters: The rated current ranges from 630A to 3150A; the rated short-circuit breaking current ranges from 20kA to 50kA.

The technical parameter standards such as rated short-circuit making current (peak value) and rated dynamic withstand current are higher than those specified in the current national standards.

Before delivery, all products undergo mechanical running-in and aging tests based on reliability principles to ensure product reliability.

The product has good series compatibility and versatility, making it convenient for users to maintain and operate.

The product complies with the current standards such as GB 1984, DL 403, and IEC Standards Publication No. 56 and No. 694.

■ Service Environment

A) Ambient air temperature: upper limit +40℃, lower limit -15℃;

B) Altitude: ≤100m (if the altitude needs to be increased, the rated insulation level shall be raised accordingly);

C) Seismic intensity: not exceeding Degree 8;

D) Relative air humidity: daily average ≤95%, monthly average ≤90%;

E) Locations free from fire, explosion hazards, severe pollution, chemical corrosion, and violent vibrations.