DNH18 Series Strip Fuse Disconnector
Key attributes
| Brand | Switchgear parts |
| Model NO. | DNH18 Series Strip Fuse Disconnector |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| number of poles | 3P |
| Series | DNH18 |
Product descriptions from the supplier
DNH18 strip fuse type isolation switch, specially designed for industrial distribution systems, with both isolation switch and fuse protection functions, suitable for breaking and overload protection of three-phase AC circuits Suitable for various cabinets in the field of low-voltage distribution, including GGD low-voltage distribution cabinets, cable branch boxes, American box transformer low-voltage cabinets, capacitor compensation cabinets, and fixed metering distribution cabinets
Fuse Disconnector General Model List
Serial number |
Order No | Electric current | Adaptation |
1 |
DNH18-160/3L | 160A | Fixed installation (punching), three-phase synchronous operation, with fuse |
2 |
DNH18-160/311L | 160A | Hook up installation, with auxiliary contact, three-phase synchronous operation, with fuse |
3 |
DNH18-250/3L | 250A | Fixed installation (punching), three-phase synchronous operation, with fuse |
4 |
DNH18-250/3S | 250A | Fixed installation (punching), three-phase independent operation, with fuse |
5 |
DNH18-250/3LD | 250A | Fixed installation (punching), three-phase synchronous operation, with isolating knife |
6 |
DNH18-250/311L | 250A | Hook up installation, with auxiliary contact, three-phase synchronous operation, with fuse |
7 |
DNH18-400/3L | 400A | Fixed installation (punching), three-phase synchronous operation, with fuse |
| 8 | DNH18-400/3S | 400A | Fixed installation (punching), three-phase independent operation, with fuse |
9 |
DNH18-400/3LD | 400A | A fixed installation (punching), three-phase synchronous operation, with isolating knife |
10 |
DNH18-400/311L | 400A | Hook up installation, with auxiliary contact, three-phase synchronous operation, with fuse |
11 |
DNH18-630/3L | 630A | Fixed installation (punching), three-phase synchronous operation, with fuse |
12 |
DNH18-630/3S | 630A | Fixed installation (punching), three-phase independent operation, with fuse |
13 |
DNH18-630/3LD | 630A | Fixed installation (punching), three-phase synchronous operation, with isolating knife |
14 |
DNH18-630/311L | 630A | Hook up installation, with auxiliary contact, three-phase synchronous operation, with fuse |
Remarks |
1. For other specific order models, please see the explanation of the model of the bar fuse disconnector | ||
| 2. If you need other accessories, such as wiring terminals, please check the accessories list of strip fuse disconnector | |||
Fuse Disconnector Technical Parameter
DNN18-160 |
DNN18-250 | DNN18-400 | DNN18-630 |
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Electrical parameters |
With fuse | Rated working voltage | Ue | V | AC
400 |
AC
500 |
AC
690 |
AC
400 |
AC
500 |
AC
690 |
AC
400 |
AC
500 |
AC
690 |
AC
400 |
AC
500 |
AC 690 |
|
Rated working current | Ie | A | 160 | 125 | 100 | 250 | 250 | 200 | 400 | 400 | 315 | 630 | 630 | 630 |
|
Agreed heating current |
Ith | A | 160 | 125 | 100 | 250 | 250 | 200 | 400 | 400 | 315 | 630 | 630 | 630 |
||
Service level |
AC-23B | AC-23B | AC-22B | AC-23B | AC-22B | AC-21B | AC-23B | AC-22B | AC-21B | AC-23B | AC-22B | AC-21B |
||||
Rated limiting short-circuit current |
Iq | kA | 50 | 100 | 100 | 50 | 100 | 100 | 50 | 100 | 100 | 50 |
||||
|
Rated insulation voltage | Ui | V | 1000 | 1000 | 1000 | 1000 |
|||||||||
Rated impulse withstand voltage |
Uimp | kV | 8 | 12 | 12 | 12 |
||||||||||
|
Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 |
||||||||||
Electric life times |
time | 200 | 200 | 200 | 200 |
|||||||||||
With isolating knife |
Rated working voltage | Ue | V | \ | \ | AC500 | \ | \ | AC500 | \ | \ | AC500 | \ |
|||
Rated working current |
Ie | A | \ | \ | 250 | \ | \ | 400 | \ | \ | 630 | \ | ||||
Agreed heating current |
Ith | A | \ | \ | 250 | \ | \ | 400 | \ | \ | 630 | \ |
||||
Service level |
\ | \ | AC-23B | \ | \ | AC-23B | \ | \ | AC-23B | \ | ||||||
|
Rated limiting short-circuit current | Iq | kA | \ | \ | 12 | \ | \ | 12 | \ | \ | 12 | \ |
|||
Rated insulation voltage |
Ui | V | \ | 100 | 1000 | 1000 |
||||||||||
|
Rated impulse withstand voltage | Uimp | kV | \ | 12 | 12 | 12 |
|||||||||
Rated frequency |
Hz | \ | 50\60 | 50\60 | 50\60 |
|||||||||||
|
Electric life times | time | \ | 200 | 200 | 200 |
||||||||||
Fuse |
Size （RT16/NT/NH）
GB/T13539.2 IEC 62269-2 |
00 | 1 | 2 | 3 |
|||||||||||
|
Working current | In | A | 160 | 125 | 100 | 250 | 250 | 200 | 400 | 400 | 315 | 630 | 630 | 500 |
|
power waste |
P | W | 12 | 12 | 12 | 18 | 23 | 32 | 28 | 34 | 45 | 40 | 48 | 60 |
||
Mechanism |
Mechanical life | time | 1400 | 1400 | 800 | 800 | 1400 | 800 |
||||||||
Busbar spacing |
mm | 185 | 185 | 185 | 185 |
|||||||||||
Protection grade of mechanism |
Front
|
on | IP20 | IP20 | IP20 | IP20 |
||||||||||
off |
IP30 | IP30 | IP30 | IP30 |
||||||||||||
Other
|
Electronic fuse monitor (EFM) | Can be added | Can be added | Can be added | Can be added |
|||||||||||
Switch opening and closing signal feedback (microswitch) |
Can be added | Can be added | Can be added | Can be added | ||||||||||||
Working conditions
|
Ambient air temperature | ℃ | -5 ～ +55 |
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Rated working system |
Uninterrupted working system | |||||||||||||||
Operation mode |
Handle operation |
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Installation method |
Vertical installation |
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Altitude |
m | ≤ 2000 |
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class of pollution |
3 |
|||||||||||||||
Overvoltage level |
Overvoltage level | Ⅲ
|
Ⅳ |
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Fuse Disconnector Outline and Installation Dimension (mm)
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.
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