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  • Isolator Switch DNH8(HGL) Series Load-Disconnector Switch
  • Isolator Switch DNH8(HGL) Series Load-Disconnector Switch
Isolator Switch DNH8(HGL) Series Load-Disconnector Switch
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Model
DNH8(HGL)-3150A/4P
DNH8(HGL)-3150A/3P
DNH8(HGL)-2500A/4P
DNH8(HGL)-2500A/3P
DNH8(HGL)-2000A/4P
DNH8(HGL)-2000A/3P
DNH8(HGL)-1600A/4P
DNH8(HGL)-1600A/3P
DNH8(HGL)-1250A/4P
DNH8(HGL)-1250A/3P
DNH8(HGL)-1000A/4P
DNH8(HGL)-1000A/3P
DNH8(HGL)-630A/4P
DNH8(HGL)-630A/3P
DNH8(HGL)-500A/4P
DNH8(HGL)-500A/3P
DNH8(HGL)-400A/4P
DNH8(HGL)-400A/3P
DNH8(HGL)-315A/4P
DNH8(HGL)-315A/3P
DNH8(HGL)-250A/4P
DNH8(HGL)-250A/3P
DNH8(HGL)-200A/4P
DNH8(HGL)-200A/3P
DNH8(HGL)-160A/4P
DNH8(HGL)-160A/3P
DNH8(HGL)-125A/4P
DNH8(HGL)-125A/3P
Basic info Product Detail Supplier
Basic info
Brand Switchgear parts
Model NO. Isolator Switch DNH8(HGL) Series Load-Disconnector Switch
Rated normal current 3150A
number of poles 4p
Series DNH8(HGL)
Product Detail

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.

Pole Isolator Switch Operating Conditions

Temperature Range: The ambient air temperature should remain between -5 °C and +40 °C, with relative humidity not exceeding 95%.

Altitude: Installation altitude must not exceed 2000 meters.

Environment: The switch should be used in environments free from explosive hazards and where rain or snow does not intrude.

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

Pole Isolator Switch Operating Mode

Alien Isolation Switch-3

Pole Load Disconnector

Alien Isolation Switch-4

Pole Isolator Switch Outline and Installation Dimension (mm)

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.

Know your supplier
Switchgear parts
VoltEdge Solutions​​ specializes in manufacturing premium ​​MV switchgear accessories​​ for global power distribution systems. Our product range includes circuit breaker modules, disconnector spares, and surge arrestors, engineered for ​​24kV+ substations​​ and renewable energy plants. With ISO-certified production and 24/7 technical support, we ensure ​​reliability, compliance​​ with IEC standards, and rapid global supply.
Main Categories
Electrical fittings/Equipment Parts/Low Voltage Electrical Apparatus
Business Type
Sales
Highest Annual Export (USD)
$300000000
Professional Experience
1 years
Workplace
1000m²
占位
占位
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