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AC عازل التبديل

3 القطب عازل التبديل DNH8 (HGL) سلسلة تحميل فاصل التبديل


الوضع: سلسلة DNH8(HGL)

تصنيف الحالية: 63A، 100A، 160A، 250A، 630A، 1600A، 3150A

القطب: 3 ف، 4 ف

تصنيف العزل الجهد Ui (V): 690V، 1000V

القوة العازلة (V): 1890V، 2200V

تصنيف دفع تحمل الجهد uimp كيلو فولت: 8kV، 12kV

ميكانيكية الحياة 400V: 1700، 1400، 800، 500

الحياة الكهربائية 400V: 300،200،100

البريد الإلكتروني: [email protected]

AC عازل التبديل DC عازل التبديل

مفتاح العزل الداخلي

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DNH8(HGL) Series 3 Pole Isolation Switch Overview

The DNH8(HGL) series 3 pole isolator switch is specifically designed for circuits operating at AC 50Hz with a rated voltage of 400V and rated current up to 3150A. These switches are ideal for infrequently switching circuits on and off and providing reliable electrical isolation.

3 Pole Isolator Switch



  • Instantaneous Release Mechanism: The innovative acceleration mechanism allows for rapid switching at speeds of 13.8 m/s. This feature operates independently of the handle speed, significantly enhancing the arc-extinguishing capability.
  • Durable Construction: The switch casing is made from glass fiber reinforced unsaturated polyester resin, offering excellent flame retardancy, dielectric properties, and impact resistance. This makes it suitable for various harsh environments, ensuring robust arc-extinguishing performance.
  • Self-Cleaning Contacts: The parallel double breakpoint contacts feature self-cleaning mechanisms, enhancing reliability.
  • Safety Features: Each contact has two separate contact faces, and a large isolation distance in the “0” position prevents misoperation. Additionally, three locks can be used simultaneously to secure the handle.

Read on what is isolator switch?



Alien Isolation Switch-2

For example, the DNH8(HGL)-160A/4Z2JF11~380V model features:

    • AC rated voltage: 380V
    • Contracted heating current: 160A
    • Rated current: 125A
    • Four poles with outside cabinet operation and auxiliary contacts (1 normally open + 1 normally closed).


  1. Temperature Range: The ambient air temperature should remain between -5 °C and +40 °C, with relative humidity not exceeding 95%.
  2. Altitude: Installation altitude must not exceed 2000 meters.
  3. Environment: The switch should be used in environments free from explosive hazards and where rain or snow does not intrude.


Standards Compliance

The DNH8(HGL) series meets international and national standards:

International Standards:

    • IEC 60947-1: Low-voltage switching equipment and control equipment part I: General
    • IEC 60947-3: Low-voltage switching equipment and control equipment, switches, isolators, isolation switch, and fuse combination appliances

National Standards:

      • GB/T 14048.1: Low-voltage switchgear and control equipment general provisions
      • GB/T 14048.3: Low-voltage switchgear control equipment, low-voltage switches, isolators, and isolator switch and fuse combination appliances


3 Pole Isolator Switches DNH8(HGL) series are designed for use in a variety of applications where circuit turn-on and turn-off or electrical isolation is required. They are available in seven different models, ranging from 63A to 3150A, and feature a modular design with three and four levels (three levels + neutral level for turn-on and turn-off).

Electrical isolation switch is also equipped with a front-side window that indicates the contact’s on/off state, and a rear observation window that allows for direct observation of the contact’s on-off state.


Rated current In (A)

63A

100A 160A 250A

630A

Contract heating current Ith (A) 

40

63 80 100 125 160 200 250 315 400 500 630
Rated insulation voltage Ui (V) (Installation class IV)

690

690 1000 1000

1000

Dielectric strength (V)

1890

1890 2200 2200

2200

Rated impulse withstand voltage Uimp kV

8

8 12 12

12

Rated operating current le (A) 

AC-21B

40

63 80 100 125 160 200 250 315 400 500 630

AC-22B

40

63 80 100 125 160 200 250 315 400 500

630

 

AC-23B

40

63 80 100 125 160 200 250 315 400 500 630
Motor power P (kW) 

400V

18.5 25 40 40 63 80 100 132 160 220 280

315

Rated short-time endurance current lcw (kA Rms) 1s

2

2 2 2 6 6 9 9 12.6 12.6 12.6

12.6

Rated breaking capacity Icn (A Rms) AC-23B 400V

320

504 640 800 1000 1080 1600 2000 2520 3200 4000 5040
Rated switching capacity Icm (A Rms) AC-23B 400V 

400

630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300
Rated short-circuit switching capacity Icm (kA peak) 

2.84

2.84 2.84 2.84 9.2 9.2 15.3 15.3 25.2 25.2 25.2

25.2

Mechanical life 400V 

1700

1700 1700 1700 1400 1400 1400 1400 800 800 800

800

Electrical life 400V

300

300 300 300 200 200 200 200 200 200 200 200
Operating torque (Nm)

1.2

1.2 1.2 1.2 6.5 6.5 10 10 21 21 21

21

Weight (kg)

3P

0.4 0.4 0.55 0.55 1.2 1.2 2 2 4.4 4.4 4.9

4.9

4P

0.42 0.42 0.62 0.62 1.4 1.4 2.35 2.35 5.5 5.5 6.3 6.3

Rated current In (A)

1600A

3150A

Contract heating current Ith (A)

1000

1250 1600 2000 2500

3150

Rated insulation voltage Ui (V) (Installation class IV)

1000

1000

Dielectric strength (V)

2200

2200

Rated impulse withstand voltage Uimp kV

12

12

Rated operating current le (A)

AC-21B

1000

1250 1600 2000 2500 3150

AC-22B

/ / / / /

/

AC-23B

/ / / / /

/

Motor power P (kW)

400V

560 560 560 710 710

710

Rated short-time endurance current lcw (kA Rms) 1s

30

30 30 50 50

50

Rated breaking capacity Icn (A Rms) AC-23B 400V

1500

1875 2400 3000 3750

4725

Rated switching capacity Icm (A Rms) AC-23B 400V

1500

1875 2400 3000 3750

4725

Rated short-circuit switching capacity Icm (kA peak)

63

63 63 105 105

105

Mechanical life 400V

500

500 500 500 500

500

Electrical life 400V

100

100 100 100 100

100

Operating torque (Nm)

37

37 37 50 50

50

Weight (kg)

3P

13.2 14.6 15.6 25.5 25.5

31

4P

14.8 17.1 18 37.5 37.5

51.5




Alien Isolation Switch-3



Alien Isolation Switch-4




Alien Isolation Switch-5


Alien Isolation Switch-6


Alien Isolation Switch-7


Alien Isolation Switch-8



Specifications

Overall dimension

Installation dimension

In

A B C D D1 E φL F H N P R S U φX Y J

K

125A/3

140 135 121 15 93 71 5.5 50 10 75 36 20 25 115 9 24 120

65

125A/4

170 135 121 15 93 71 5.5 50 10 75 36 20 25 115 9 24 150

65

160A/3

140 135 121 15 93 71 5.5 50 10 75 36 20 25 115 9 24 120 65

160A/4

170 135 121 15 93 71 5.5 50 10 75 36 20 25 115 9 24 150

65

200A/3

180 170 144 20 104 84 5.5 79 15 105 50 25 30 140 11 25 160

90

200A/4

230 170 144 20 104 84 5.5 79 15 105 50 25 30 140 11 25 210

90

250A/3

180 170 144 20 104 84 5.5 79 15 105 50 25 30 140 11 25 160

90

250A/4

230 170 144 20 104 84 5.5 79 15 105 50 25 30 140 11 25 210

90

315A/3

230 240 188 30 137 115 7 95 20 135 65 32 40 206 11 37 210

140

315A/4

290 240 188 30 137 115 7 95 20 135 65 32 40 206 11 37 270

140

400A/3

230 240 188 30 137 115 7 95 20 135 65 32 40 206 11 37 210

140

400A/4

290 240 188 30 137 115 7 95 20 135 65 32 40 206 11 37 270

140

500A/3

230 260 188 30 137 115 7 95 20 135 65 40 50 220 13 37.5 210

140

500A/4

290 260 188 30 137 115 7 95 20 135 65 40 50 220 13 37.5 270

140

630A/3

230 260 188 30 137 115 7 95 20 135 65 40 50 220 13 37.5 210

140

630A/4

290 260 188 30 137 115 7 95 20 135 65 40 50 220 13 37.5 270

140



Alien Isolation Switch-9


Alien Isolation Switch-10


Alien Isolation Switch-11


Alien Isolation Switch-12



Specifications

Overall dimension

Installation dimension

In

A

B C D D1 E φL F H N P J

K

1000A/3

378

308 174 120 60 200 35 20 16.5 49 353

175

1000A/4

493

310 235 120 60 200 35 20 16.5 48 471

174

1250A/3

378

336 174 120 80 200 40 35 16 49 353

175

1250A/4

493

338 235 120 80 200 40 35 16 48 471

174

1600A/3

378

336 174 120 80 200 40 35 16 50 353

175

1600A/4

493

338 235 120 80 200 40 35 16 49 471

174

2000A/3

378

445 174 120 80 200 40 40 20 103 50 353

220

2000A/4

493

447 235 120 80 200 40 40 20 104 50 471

220

2500A/3

378

445 174 120 80 200 40 40 20 103 65 353

220

2500A/4

493

447 235 120 80 200 40 40 20 104 65 471

220

3150A/3

378

492 174 120 120 200 50 50 21 77 65 353

220

3150A/4

493

494 235 120 120 200 50 50 21 78 65 471 220


The DNH8(HGL) series 3 phase isolator switch provides essential functionality for electrical isolation and circuit control in various applications. Available in models ranging from 63A to 3150A, this modular design incorporates three and four levels (including a neutral level for circuit operation). Additionally, it features a front-side window for indicating the contact state and a rear observation window for easy monitoring.

If you have any questions or require further information about our isolator switches, electrical isolation switch options, or other products, please do not hesitate to contact us!

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