DNH50-400~630A DC isolation switch
Key attributes
| Brand | Switchgear parts |
| Model NO. | DNH50-400~630A DC isolation switch |
| Rated normal current | 500A |
| Series | DNH50 |
Product descriptions from the supplier
DNH50 series disconnectors are suitable for low voltage distribution networks with DC2000V, 630A or below. They are used for infrequent connect/disconnect of the main circuit, and for isolating the circuit. They are widely used in solar photovoltaic, energy storage system (ESS) and DC equipment systems. Standards: GB/T 14048.1、GB/T 14048.3；IEC 60947-1、IEC 60947-3 standards.
When placing an order, the user should provide the following information:
1. Product name, model, specifications, and quantity;
2. If there are special installation conditions or special places to use
Provide corresponding technical information or negotiate with our company.
Example: DNH50-400H02JF11
DC isolation switch, rated current 400A, with terminals
Shield, two poles - mechanism located on the left, operated outside the cabinet, auxiliary
Auxiliary contacts: one normally open and one normally closed, 10 units.
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/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
-
CYD-8 Hydraulic Disc Spring Operating Mechanism
-
CYD-4 Hydraulic Disc Spring Operating Mechanism
-
CJ55 Single-phase isolation operating mechanism
-
CJ8 Three Station Electric Operating Mechanism
-
110kV CT126-1 Circuit Breaker Spring Operating Mechanism
-
Circuit breaker spring mechanism ZN13
-
ZF34-252 Three-phase linkage spring operating mechanism
Related Knowledges
-
How Altitude Affects HV Equipment Insulation & Temperature Rise？As altitude increases, air density, temperature, and atmospheric pressure decrease accordingly, leading to reduced dielectric strength of air gaps and external insulation performance of porcelain components. This results in degraded external insulation performance for high-voltage electrical equipment. Since most high-voltage equipment is designed for installation at altitudes below 1,000 meters, using such equipment at elevations exceeding 1,000 meters may compromise reliable insulation performJames10/23/2025 -
What Causes CT20 Mechanism to Fail to Close? Insufficient Closing Solenoid Stroke Is KeyThe CT20 series operating mechanism is a classic design. One common cause of failure to close is an improperly adjusted, overly short stroke of the closing solenoid. The rated stroke is approximately 5mm. However, due to vibration or incorrect adjustment after maintenance, the stroke may decrease to around 3mm, potentially causing the mechanism to fail to operate. If the control system continuously issues a closing command under such conditions, the solenoid remains energized, which can lead toFelix Spark10/23/2025 -
Are PM Actuators Reliable? Compare Types & BenefitsThe performance of circuit breaker operating mechanisms is decisive for reliable and safe power supply. While various mechanisms each have their advantages, the emergence of a new type does not completely replace traditional ones. For example, despite the rise of eco-friendly gas insulation, solid insulation ring main units still hold about 8% of the market, showing new technologies rarely fully displace existing solutions.The permanent magnet actuator (PMA) consists of permanent magnets, a closEdwiin10/23/2025 -
What Are Combined Transformer Standards? Key Specs & TestsCombined Instrument Transformers: Technical Requirements and Testing Standards Explained with DataA combined instrument transformer integrates a voltage transformer (VT) and a current transformer (CT) into a single unit. Its design and performance are governed by comprehensive standards covering technical specifications, testing procedures, and operational reliability.1. Technical RequirementsRated Voltage:The primary rated voltages include 3kV, 6kV, 10kV, and 35kV, among others. The secondary vEdwiin10/23/2025 -
What Are the Types of Reactors? Key Roles in Power SystemsReactor (Inductor): Definition and TypesA reactor, also known as an inductor, generates a magnetic field within the surrounding space when current flows through a conductor. Therefore, any current-carrying conductor inherently possesses inductance. However, the inductance of a straight conductor is small and produces a weak magnetic field. Practical reactors are constructed by winding the conductor into a solenoid shape, known as an air-core reactor. To further increase inductance, a ferromagnetJames10/23/2025 -
35kV Distribution Line Single-Phase Ground Fault HandlingDistribution Lines: A Key Component of Power SystemsDistribution lines are a major component of power systems. On the same voltage-level busbar, multiple distribution lines (for input or output) are connected, each with numerous branches arranged radially and linked to distribution transformers. After being stepped down to low voltage by these transformers, electricity is supplied to a wide range of end users. In such distribution networks, faults such as phase-to-phase short circuits, overcurreEncyclopedia10/23/2025
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.
