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KFW2-Series

KFW2-630

KFW2-4000

KFW2 Series.

Product Overview:

The KFW2 Series Universal Circuit Breaker is designed for AC distribution networks operating at 50Hz with a rated voltage up to 690V and a rated current of 6300A and below. The breaker can be equipped with various intelligent controllers, offering comprehensive protection functions. The communication-type intelligent controllers feature communication interfaces, facilitating connections with fieldbus systems and enabling remote monitoring, remote adjustment, remote control, and remote signaling ("Four Remotes"), meeting automation control requirements.

The breaker can be equipped with various intelligent controllers, offering comprehensive protection functions. The communication-type controllers feature communication interfaces, facilitating connections with fieldbus systems and enabling remote monitoring, remote adjustment, remote control, and remote signaling (the "Four Remotes"), meeting automation control requirements. The breaker offers high precision in selective protection, minimizing unnecessary power outages and enhancing the reliability and safety of the power supply system..

KFW2 Series Collection

In order to meet the intelligent power distribution and the green and low-carbon development, following the rapid development of cloud computing, big data and artificial intelligence, we have launched KFW2 series air circuit breakers at rated current up to 7500A.

KFW2 Series

1600A

KFW2 Series

4000A


The KFW2 Series Universal Circuit Breaker is designed for AC distribution networks operating at 50Hz with a rated voltage up to 690V and a rated current of 6300A and below. The breaker can be equipped with various intelligent controllers, offering comprehensive protection functions. The communication-type intelligent controllers feature communication interfaces, facilitating connections with fieldbus systems and enabling remote monitoring, remote adjustment, remote control, and remote signaling ("Four Remotes"), meeting automation control requirements. With the addition of leakage current transformers and corresponding intelligent controllers, the breaker can also provide leakage protection.

Technical Parameters


Frame current Rated current Number of poles Utilization category IEC/EN60947-2
Comply with IEC/EN60947-2
AC 50/60Hz
Rated operating voltage
Rated insulation voltage Rated impulse withstand voltage Operating time
Isolating function Rated short-time withstand current Breaking time
KFW2-1600 1600 A 200/400/630/800/1000/1250/1600 A 3/4 P B
Yes

Yes
380/400/415/660/690 V 1000 V 12 kV
Closing time: ≤70 ms
Breaking time: ≤30 ms
KFW3-4000 4000 A 1000/1250/1600/2000/2500/2900/3200/3600/4000 A 3/4 P B
Yes

Yes
380/400/415/660/690 V 1000 V 12 kV
Closing time: ≤70 ms
Breaking time: ≤30 ms
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KFW2 Series

Product Features

The KFW2 Series Universal Circuit Breaker is designed for AC distribution networks operating at 50Hz with a rated voltage up to 690V and a rated current of 6300A and below. The breaker can be equipped with various intelligent controllers, offering comprehensive protection functions.

KFW3 Series 1600

Feature Description
Rated Current 1600A
Rated Voltage Up to 690V AC
Frequency 50Hz / 60Hz
Protection Functions Overload, Short Circuit, Undervoltage, Earth Fault
Isolation Function Provides isolation of the electrical circuit
Intelligent Controllers Equipped with smart controllers for enhanced protection and automation

Download MSDS

KFW2 Series 4000

Feature Description
Rated Current 4000A
Rated Voltage Up to 690V AC
Frequency 50Hz / 60Hz
Protection Functions Overload, Short Circuit, Undervoltage, Earth Fault
Isolation Function Provides isolation of the electrical circuit
Intelligent Controllers Equipped with smart controllers for enhanced protection and automation

Download MSDS