KFW5-1600

KFW5-2500

KFW5-4000

KFW5-7500

KFW5 Series.

Product Overview:

The KFW5 series frame circuit breaker is a new generation product developed by Jiangsu Daqian Kaifan Switch Company. This industrial circuit breaker is primarily used in high-current low-voltage distribution applications in sectors such as industrial, high-end construction, metallurgy, chemical industry, and power plants. It provides protection against overload, short circuit, earth faults, and voltage issues.

The KFW5 series includes four frame sizes: 1600A, 2500A, 4000A, and 7500A. The minimum rated current is 200A, while the maximum rated current is 7500A. It operates at voltages of AC400V and AC690V (50Hz-60Hz). The product variants include 3-pole, 4-pole, drawer type, and fixed type. The breaking capacity reaches up to 150kA.

Keywords: KFW5 series frame circuit breaker, industrial circuit breaker, high-current low-voltage distribution, overload protection, short circuit protection, voltage protection, drawer type circuit breaker, fixed type circuit breaker, breaking capacity 150kA.

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
KFW5-1600	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
KFW5-2500	2500 A	630/800/1000/1250/1600/2000/2500 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
KFW5-4000	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
KFW5-7500	7500 A	4000/5000/6300/7500 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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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

KFW5-1600

1600 A

200/400/630/800/1000/1250/1600 A

3/4 P

Yes

380/400/415/660/690 V

1000 V

12 kV

Closing time: ≤70 ms
Breaking time: ≤30 ms

KFW5-2500

2500 A

630/800/1000/1250/1600/2000/2500 A

3/4 P

Yes

380/400/415/660/690 V

1000 V

12 kV

Closing time: ≤70 ms
Breaking time: ≤30 ms

KFW5-4000

4000 A

1000/1250/1600/2000/2500/2900/3200/3600/4000 A

3/4 P

Yes

380/400/415/660/690 V

1000 V

12 kV

Closing time: ≤70 ms
Breaking time: ≤30 ms

KFW5-7500

7500 A

4000/5000/6300/7500 A

3/4 P

Yes

380/400/415/660/690 V

1000 V

12 kV

Closing time: ≤70 ms
Breaking time: ≤30 ms

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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

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

Feature	Description
Rated Current	2500A
Rated Voltage	Up to 1000V AC
Frequency	50Hz / 60Hz
Breaking Capacity	Up to 80kA
Protection Functions	Overload, Short Circuit, Undervoltage, Earth Fault
Isolation Function	Provides reliable isolation for maintenance and safety

Feature

Description

Rated Current

2500A

Rated Voltage

Up to 1000V AC

Frequency

50Hz / 60Hz

Breaking Capacity

Up to 80kA

Protection Functions

Overload, Short Circuit, Undervoltage, Earth Fault

Isolation Function

Provides reliable isolation for maintenance and safety

Feature	Description
Rated Current	4000A
Rated Voltage	Up to 1000V AC
Frequency	50Hz / 60Hz
Breaking Capacity	Up to 100kA
Protection Functions	Overload, Short Circuit, Undervoltage, Earth Fault, Differential Protection
Isolation Function	Reliable isolation for maintenance and safety purposes

Feature

Description

Rated Current

4000A

Rated Voltage

Up to 1000V AC

Frequency

50Hz / 60Hz

Breaking Capacity

Up to 100kA

Protection Functions

Overload, Short Circuit, Undervoltage, Earth Fault, Differential Protection

Isolation Function

Reliable isolation for maintenance and safety purposes

Feature	Description
Rated Current	7500A
Rated Voltage	Up to 1000V AC
Frequency	50Hz / 60Hz
Breaking Capacity	Up to 100kA
Protection Functions	Overload, Short Circuit, Undervoltage, Earth Fault, Differential Protection
Isolation Function	Reliable isolation for maintenance and safety purposes

Feature

Description

Rated Current

7500A

Rated Voltage

Up to 1000V AC

Frequency

50Hz / 60Hz

Breaking Capacity

Up to 100kA

Protection Functions

Overload, Short Circuit, Undervoltage, Earth Fault, Differential Protection

Isolation Function

Reliable isolation for maintenance and safety purposes

KFW5 Series.

Product Overview:

KFW5 Series Collection

KFW5 Series

KFW5 Series

KFW5 Series

KFW5 Series

Technical Parameters

KFW5 Series

Product Features

KFW5 Series 1600

KFW5 Series 2500

KFW5 Series 4000

KFW5 Series 7500

Daqo group

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