
The cabinet body is riveted after processed by numerical control machine tool with reliable mechanical interlocking and themisoperating prevention function. The protection grade reaches iP3X.This product has the remarkable characteristics such as thesmall volume,light weight, artistic appearance, simple operation, long life, high parameter with no pollution and little maintenance.



Item | unit | ||||
Rated voltage | kV | 7.2,12,24 | |||
Rated frequency | Hz | 50 | |||
Rated current | A | 630,1250,1600,2000,2500, 3150,4000 | |||
4S Thermal stability current | kA | 16,20,25,31.5,40,50 | |||
Rated dynamic stability current (peak) | kA | 40,50,63,80,100,125 | |||
Rated short-circuit breaking current | kA | 16,20,25,31.5,40,50 | |||
Rated short-circuit closing current (peak) | kA | 40,50,63,80,100,125 | |||
Rated insulation level 1min frequency withstand voltage | kV | 32 42,65 | |||
kV | 60,75,125 | ||||
Rated operation sequence | 0-0.3S-C0-180S-CO | ||||
Rated short-circuit breaking current | the second | 50 | |||
Mechanical life time | the second | 20000 | |||
Contact opening distance | mm | 11±1 | |||
Overtravel | mm | 4±0.5 | |||
Centre distance between phases | mm | 210,275 | |||
Bouncing time of closing contact | mS | ≤2 | |||
Three-phase switching non-simultaneous | mS | ≤2 | |||
Breaking time (when operating force is applied) Max. | ms | ≤50 | |||
ms | ≤50 | ||||
ms | ≤60 | ||||
Closing time | ms | ≤100 | |||
Average opening speed | m/s | 0.9~1.2 | |||
Average closing speed | m/s | 0.6~0.8 | |||
protection class | P4X(When the breaker compartment door is openIP2X) |






