Isolating Switch DNH8(HGL)/H Series Operation Behind the Cabinet – Load Disconnector
Key attributes
| Brand | Switchgear parts |
| Model NO. | Isolating Switch DNH8(HGL)/H Series Operation Behind the Cabinet – Load Disconnector |
| Rated normal current | 1000A |
| number of poles | 4p |
| Series | DNH8(HGL)/H |
Product descriptions from the supplier
Isolating Switches with a current capacity of 160 to 1600 Amperes are suitable for use in circuits for making and breaking connections, as well as for electrical isolation. Switches with a rated current of 1000 Amperes or more are only to be used for electrical isolation. Three-pole and four-pole (3+1) switches are available. Suitable for low-voltage distribution cabinets, the following are specific cabinet bodies and details: GGD type low-voltage fixed switchgear, MNS type low-voltage withdrawable switchgear, GCS type low-voltage withdrawable switchgear, GCK type low-voltage withdrawable switchgear
Switches rated 1600 Amperes or less are available with an observation window, through which the state of the contacts (open or closed) can be directly observed.
Auxiliary contacts can be fitted if required.
Note: This Isolating Switch product only provides operation outside the cabinet
Order model: DNH8 (HGL) -630/3JH
If a visual observation window is required, the Isolating Switch order model is DNH8 (HGL) -630/3JKH
Outline and Installation Dimension (mm)
Specifications |
Overall dimension | Installation dimension |
|||||||||||||
| In | A |
B | C | D | D1 | N | P | R | U | φX | F | H | J | K | L1 |
| 125A/3 | 140 |
135 | 17 | 15 | 93 | 75 | 36 | 20 | 115 | 9 | 50 | 10 | 120 | 95 | 7 |
| 125A/4 | 170 |
135 | 17 | 15 | 93 | 75 | 36 | 20 | 115 | 9 | 50 | 10 | 150 | 95 | 7 |
| 160A/3 | 140 | 135 | 17 | 15 | 93 | 75 | 36 | 20 | 115 | 9 | 50 | 10 | 120 | 95 | 7 |
| 160A/4 | 170 |
135 | 17 | 15 | 93 | 75 | 36 | 20 | 115 | 9 | 50 | 10 | 150 | 95 | 7 |
| 200A/3 | 180 |
170 | 18 | 20 | 104 | 105 | 50 | 25 | 140 | 11 | 79 | 15 | 160 | 115 | 9 |
| 200A/4 | 230 |
170 | 18 | 20 | 104 | 105 | 50 | 25 | 140 | 11 | 79 | 15 | 210 | 115 | 9 |
| 250A/3 | 180 |
170 | 18 | 20 | 104 | 105 | 50 | 25 | 140 | 11 | 79 | 15 | 160 | 115 | 9 |
| 250A/4 | 230 |
170 | 18 | 20 | 104 | 105 | 50 | 25 | 140 | 11 | 79 | 15 | 210 | 115 | 9 |
| 315A/3 | 230 |
240 | 20 | 30 | 137 | 135 | 65 | 32 | 206 | 11 | 95 | 20 | 210 | 135 | 11 |
| 315A/4 | 290 |
240 | 20 | 30 | 137 | 135 | 65 | 32 | 206 | 11 | 95 | 20 | 270 | 135 | 11 |
| 400A/3 | 230 |
240 | 20 | 30 | 137 | 135 | 65 | 32 | 206 | 11 | 95 | 20 | 210 | 135 | 11 |
| 400A/4 | 290 |
240 | 20 | 30 | 137 | 135 | 65 | 32 | 206 | 11 | 95 | 20 | 270 | 135 | 11 |
| 500A/3 | 230 |
260 | 20 | 30 | 137 | 135 | 65 | 40 | 220 | 13 | 95 | 20 | 210 | 135 | 11 |
| 500A/4 | 290 |
260 | 20 | 30 | 137 | 135 | 65 | 40 | 220 | 13 | 95 | 20 | 270 | 135 | 11 |
| 630A/3 | 230 |
260 | 20 | 30 | 137 | 135 | 65 | 40 | 220 | 13 | 95 | 20 | 210 | 135 | 11 |
| 630A/4 | 290 |
260 | 20 | 30 | 137 | 135 | 65 | 40 | 220 | 13 | 95 | 20 | 270 | 135 | 11 |
Specifications |
Overall dimension | Installation dimension |
|||||||||
| In | A |
B | N | P | R | V | W | X | Y | J | K |
| 1000A/3 | 378 |
308 | 174 | 120 | 60 | 35 | 20 | 16.5 | 49 | 350 | 220 |
| 1000A/4 | 493 |
310 | 235 | 120 | 60 | 35 | 20 | 16.5 | 48 | 471 | 220 |
| 1250A/3 | 378 |
336 | 174 | 120 | 80 | 40 | 35 | 16 | 49 | 350 | 220 |
| 1250A/4 | 493 |
338 | 235 | 120 | 80 | 40 | 35 | 16 | 48 | 471 | 220 |
| 1600A/3 | 378 |
336 | 174 | 120 | 80 | 40 | 35 | 16 | 50 | 350 | 220 |
| 1600A/4 | 493 |
338 | 235 | 120 | 80 | 40 | 35 | 16 | 49 | 471 | 220 |
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Low Voltage Electrical Apparatus/Instrument meters/Production equipment/Tester/High Voltage Electrical Apparatus/Electrical fittings/Equipment Parts
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.
Related Products
-
160-250A DNH40 Series Disconnector Switch
-
315-400A DNH40 Series Disconnector Switch
-
3200-4000A DNH40 series isolator switches
-
2000-2500A DNH40 Series Disconnector Switch
-
630-800A DNH40 Series Disconnector Switch
-
HH15 series Disconnector fuse group and disconnector
-
Disconnector Fuse Group HGLR Series, Fuse Switch Disconnector
Related Knowledges
-
Faults and Handling of Single-phase Grounding in 10kV Distribution LinesCharacteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in01/30/2026 -
Neutral point grounding operation mode for 110kV～220kV power grid transformersThe arrangement of neutral point grounding operation modes for 110kV～220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi01/29/2026 -
Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr01/29/2026 -
Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I01/29/2026 -
Understanding Transformer Neutral GroundingI. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit01/29/2026 -
What’s the Difference Between Rectifier Transformers and Power Transformers?What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ01/29/2026
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.
