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DFW outdoor 0.4KV low-voltage cable branch box

The DFW series 0.4KV low-voltage cable branch box is mainly used in public power grids. It can be selected according to various distribution methods, box types, and installation methods based on the requirements of power grid distribution and users, making it easy for users to choose from flexible and varied solutions.

Category:

Low Voltage Systems

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Description:

Product Overview
The DFW series 0.4KV low-voltage cable branch box is mainly used in public power grids. It can be selected according to various distribution methods, box types, and installation methods based on the requirements of power grid distribution and users, making it easy for users to choose from flexible and varied solutions. It is a supporting product that replaces overhead power lines in the construction and renovation of national urban networks. The Qihuang reaction is used in low-voltage transmission and distribution systems with three-phase AC 380/220V and rated current below 1250A, such as substations, industrial and mining enterprises, both sides of streets, garden residential areas,high-rise buildings,airports,and key construction and renovation projects. It is a complete set of qualitative equipment that distributes electrical energy to other users or equipment through cables.

Working Conditions
Altitude:≤2000m
High ambient temperature:+45°C, low ambient temperature:-25°℃
Sunshine intensity:0.1W/cm2 (wind speed:0.5m/s), large daily temperature difference:25K
Indoor relative humidity: daily average<95%, monthly average<90%
High wind speed: 35m/s (wind speed refers to the 10 minute average wind speed at a height of 10m above the ground)
Load:Simultaneously experiencing 0-minute icing and a wind speed of 17.5m/s
Seismicresistance: Ground horizontal acceleration of 0.2g and vertical acceleration of 0.1g acting simultaneously. Adopting resonance, sine, and beat wave test methods; Excite 5 times, 5 waves each time,with an interval of 2 seconds between each time, and the safety factor shall not be less than 1.67
System rated frequency:50Hz

Model Meaning

DFW	Low voltage cable branch box
0.4	Rated voltage (kV)
	Incoming current (A)
	Outgoing current (A)
	Number of incoming lines
	Number of occurrences

Technical Parameter

Project		Value
Rated voltage		0.4kV
Rated current		630A
Rated short-time withstand current		20kA/3kA
Rated peak withstand current		50kA
DC withstand voltage (15min)		52kV
5-minute power frequency withstand voltage		45kV
Lightning impulse withstand voltage		105kV
partial discharge		<10PC/15kV
Loop resistance		≤4μΩ
Protection level		IP44
Environmental temperature for use		-50℃~+60℃
Applicable cable cross-section		25m㎡-400m㎡

Parameters

Key words:

DFW outdoor 0.4KV low-voltage cable branch box

DFW 10kV cable branch box

None

Application description:

The company has a diverse, high-performance product portfolio, backed by cutting-edge technology and stringent quality standards, to meet the needs of the domestic and international markets. The products include 12-72.5 kV gas insulated switchgear, 12-40.5 kV switchgear, Ring Main Units (RMUs), Mobile Substations, Column Mounted Switchgear and Integrated Primary and Secondary Switchgear. Its flagship products, such as the NISELA series of environmentally friendly gas-insulated RMUs and the GISELA series of SF6 gas-insulated RMUs, integrate cutting-edge technologies such as solid insulation, vacuum interrupting and modular plug-in design to ensure high reliability, environmental friendliness and adaptability to different scenarios (indoor/outdoor, basement, etc.). These products are widely used in urban power distribution networks, rail transportation, new energy and industry, etc. The market share of RMUs in China's railroad sector reaches 30%. The company prioritizes product innovation and continues to strengthen its R&D capabilities in 40.5kV environmentally friendly gas insulation, SF6 breaking technology and multi-field coupling simulation. This commitment ensures that our products not only meet current industry standards, but also lead the way in technological advancement, providing future-proof solutions for our customers. In addition, they products are exported to Singapore, South America, Southeast Asia, Korea, the Middle East and other international markets.

Infrastructure Projects

Renewable Energy Integration

Commercial Building Electrification

Grid Application Solutions

Why Choose Us?

Huatuo Power Equipment Group

HUATUO Power Equipment Group Co., Ltd. has six subsidiaries and possesses strong R&D capabilities. Since its establishment, the company has published 45 papers and applied for 124 patents, including 64 invention patents. The company has been awarded titles such as ‘4A-level Credit Enterprise,’ ‘Henan Province High-Quality Medium-Sized Enterprise,’ and ‘Mayor's Quality Award,’ fully demonstrating its excellence in technology, quality, and credibility. The company employs over 300 staff members and possesses advanced manufacturing capabilities, with an annual production capacity exceeding 30,000 sets of various ring main units and an annual output value of approximately 1.58 billion RMB. The company is equipped with comprehensive testing facilities, including a 200kV partial discharge measurement system and a ±900kV lightning impulse test system, ensuring strict quality control throughout the entire production process.

2007 year

Company establishment

50000 m²

Equipped Warehouse

30000 Sets

Annual production of various ring main units

124 +

Patent Certificate

Shipping Site

Huatou Power Equipment Group Co., Ltd. consistently adheres to the principle of ‘pursuing high quality and customer satisfaction,’ upholding the principles of ‘the most competitive prices, the most considerate service, and the most reliable product quality.’ The company focuses on long-term customer satisfaction, offering timely after-sales service, including on-site commissioning, maintenance guidance, and technical consultation. Its comprehensive logistics and response system ensures rapid access to spare parts and professional support. We welcome you to contact us.

FAQ

Can your factory guarantee both delivery speed and quality?

No problem. Our company currently employs over 300 staff members and possesses advanced manufacturing capabilities, with an annual production capacity exceeding 30,000 units of various ring main units and an annual output value of approximately RMB 1.58 billion. The enterprise is equipped with comprehensive testing facilities including a 200kV partial discharge measurement system and a ±900kV lightning impulse test system, ensuring strict quality control throughout the entire production process.

Are you a trading company or a manufacturer?

We are a manufacturer at the source. Our company is dedicated to providing comprehensive, end-to-end “one-stop” solutions for clients in the power systems, industrial, and new energy power plant sectors, meeting their diverse needs.

The company is committed to providing all-round, whole-process “one-stop” solutions to meet the different needs of customers in the fields of electric power system, industry and new energy power station.

DFW outdoor 0.4KV low-voltage cable branch box

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