• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


160-250A DNH40 Series Disconnector Switch
Zhejiang Wone IT Service Co., Ltd...
1yrs + staff 1000+m² US$300000000+
Zhejiang Wone IT Service Co., Ltd...
1yrs + staff 1000+m² US$300000000+
Key attributes
Brand Switchgear parts
Model NO. 160-250A DNH40 Series Disconnector Switch
Rated voltage AC 1000V
Rated normal current 250A
Rated frequency 50Hz
Series DNH40
Product descriptions from the supplier
Description

The DNH40 series disconnector switch (hereinafter referred to as "the switch") is suitable for industrial power distribution systems with AC 50Hz/60Hz and rated insulation voltage up to 1000V. It is designed for infrequent circuit connection/disconnection and electrical isolation, widely used in construction, power, petroleum, chemical, and automation systems.

Key Technical Parameters

    DNH40 - 160 DNH40 - 200 DNH40 - 250
Model   DNH40 - 160 DNH40 - 200 DNH40 - 250
Conventional thermal current and rated operational current A 160 200 250
Rated operational voltage (AC - 20/DC - 20) V 1000 1000 1000
Rated insulation voltage (Installation category Ⅳ) Ui V 1000 1000 1000
Dielectric strength 50Hz 1min kV 10 10 10
Rated impulse withstand voltage Uimp kV 12 12 12
Rated operational current (AC - 21A) 690V A 160 200 250
Rated operational current (AC - 22A) 690V A 160 200 250
Rated operational current (AC - 23A) 690V A 160 200 250
Power loss per pole (at rated operational current) W 3.2 4 6.5
Rated short - time withstand current ≤690V1s kA 8 8 8
Rated short - circuit making capacity ≤ 690V kA 30 30 30
Mechanical life Oper 20000 20000 20000
Operating torque (3 - pole) Nm 7 7 7
Terminal screw specification mm M8×25 M8×25 M8×25
Terminal tightening torque Locking torque Nm 15~22 15~22 15~22
Normal Operating Conditions        
Ambient Temperature Range: - 5℃ to + 40℃, with a 24 - hour average temperature not exceeding + 35℃      
Humidity At maximum temperature (+ 40℃), relative humidity ≤ 50%. At lower temperatures (e.g., + 20℃), higher humidity (up to 90%) is permissible. Special measures must be taken to address occasional condensation caused by temperature fluctuations.      
Altitude ≤2000m      
Pollution Degree      
Installation Category      
Installation Requirements The switch must be installed in a location free from significant vibration, mechanical shock, or exposure to rain/snow. The installation site must be free of explosive hazardous substances and corrosive gases/dust that could damage metal or insulation.      
Note: If the switch is intended for use in ambient temperatures exceeding + 40℃ or below - 5℃, the user must consult the manufacturer.      
Know your supplier
MV Switchgear Accessories
Zhejiang Wone IT Service Co., Ltd... 1yrs + staff 1000+m² US$300000000+
Zhejiang Wone IT Service Co., Ltd...
1yrs + staff 1000+m² US$300000000+
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m² Total staff: Highest Annual Export(usD): 300000000
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Electrical fittings/Equipment Parts/Low Voltage Electrical Apparatus
Whole life care manager
Full lifecycle 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
Related Knowledges
Related Solutions
Haven't found the right supplier yet? Let matching verified suppliers find you. Get Quotation Now
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Seed 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.