


Main Specification | ||||
Rated voltage | kV | 24 | ||
1minVoltage at rated power frequency | Alternate/to the ground65, fracture65 | |||
Lightning impulse withstand(peak) | Alternate/to the ground125, fracture145 | |||
Rated current | A | 630,1250 | ||
Rated frequency | Hz | 50 | ||
Rated short-circuit breaking current(peak) | kA | 20 | 25 | 31.5 |
Rated short-circuit withstand current | 50 | 63 | 80 | |
Rated peak withstand current | 50 | 63 | 80 | |
4SRated short-time withstand current | kA | 20 | 25 | 31.5 |
Rated operating sequence |
| O-0.3s-CO-180s-CO | ||
Closing time | ms | 25~60 | ||
Opening time | 18~45 |
Parameter | Unit | Value |
Rated short-circuit breaking current breaking times | Second-rate | 30 |
Mechanical life | 10000 | |
Secondary circuit1minPower frequency withstand voltage | V | 2000 |
Rated power of energy storage motor | W | 40 |
Rated voltage of energy storage motor | V | DC220,110,DC24 |
Rated closing operating voltage | AC/DC220,110;DC24 | |
Rated opening operating voltage | AC/DC220,110; DC24 | |
Motor energy storage time | S | ≤8 |
Contact Spacing | mm | 12±1 |
Overtravel | 3 ±1 | |
Phase center distance | 395 ±2 | |
Contact closing bounce time | ms | 22 |
Synchronization between three-phase switching | w2 | |
Average dividing speed | m/s | 1.1-1.7 |
Average closing speed | 0.5-1.0 | |
Main circuit resistance | μΩ | ≤100 |


1.Working temperature:-40 ºC~+60 ºC
2.Operating humidity:0-95%
3.The working environment of solar radiation:≤1.1kW/m
4.The wind speed does not exceed 35m/s(equivalent to 700pa on the cylindrical surface)
5.Pollution Level:IV grade
6.ice thickNess:≤10mm
7.seismic intensity:≤8°










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Q2:How do you control the quality ?
A2:Professional QC team comply with TQM insure you the quality. Each step is in compliance to the standards,At the same time ,we will take photos or shoot video for you.
Q3: Could I have prices of your products?
A3: Welcome. Please feel free to send us an inquiry here. We will reply you within 24 hours.