DFW Low Voltage Cable Junction Box
⚡ 0.4kV Low Voltage
Specifically designed for low-voltage distribution networks (up to 400V)
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🌧️ IP68 Waterproof & Dustproof
Fully insulated and sealed. Perfect for harsh outdoor environments like poles or wet walls.
🔩 Heavy-Duty Construction
Available in Stainless Steel or Galvanized Steel. Resists corrosion and impact.
🔌 Modular & Expandable
Standardized design allows easy expansion and future circuit additions.
🛡️ Safe & Reliable
Optional MCB/MCCB fuses and SPD (Surge Protection) ensure circuit safety.
- Product Introduction
Products Description
Our Electric DFW Low Voltage Cable Branch Box (also known as a Junction Box) is a highly reliable enclosure for power distribution networks up to 0.4kV (400V). Whether installed outdoors on utility poles or indoors, it serves as the critical connection point for branching and transitioning your low-voltage cables safely and efficiently. Our main feature:
Act as the critical physical node in your network. Easily split main feeder cables into branch circuits with secure, weatherproof connections.
Tailor the box to your exact safety needs. We can equip it with MCBs, MCCBs, fuses, or Surge Protective Devices (SPD) to guard against overloads and short circuits.
Stay in control of your power grid. The enclosure provides dedicated space for measurement and monitoring equipment, giving you real-time visibility into your network's performance.
Designed for convenience. The box offers a centralized, safe interface for quick isolation, troubleshooting, and maintenance. Need to add more circuits later? The modular design makes future expansions simple and fast.
Operating Conditions
To ensure optimal performance and safety, please install the branch box within the following environmental limits:
- Temperature Range: Ambient temperature between -35℃ and +45℃. The average daily temperature must not exceed +35℃.
- Altitude: Suitable for installation at altitudes up to 5000m.
- Humidity:
- Max 50% relative humidity at +45℃.
- Max 80% relative humidity at +22℃.
- (Note: Please account for potential condensation caused by temperature fluctuations.)
- Installation Environment: Must be free from severe vibration, impact, and corrosive gases that could damage electrical components.
If your project exceeds any of the above conditions, please contact us before ordering. We provide customized solutions for extreme environments.
Main Components & Structure
Our DFW Branch Box is highly modular. You can customize the internal configuration based on your specific grid needs:
Rugged Enclosure
Constructed from premium stainless steel or galvanized steel for maximum durability.
Main Busbars
Copper or aluminum bars that conduct current between the incoming and outgoing cable connections.
Cable Terminals
Secure connection points for incoming and outgoing cables.
Isolation Switches
Provides a visible break to ensure safe maintenance and isolation.
Circuit Protection
Equipped with MCBs, MCCBs, or Fuses to prevent overloads and short circuits.
Energy Meters
Built-in space for accurate power consumption monitoring.
Surge Protective Devices (SPDs)
Safeguards your network against lightning and switching overvoltages.
Earthing System
Ensures the enclosure is properly grounded for operator safety.
Waterproof Glands
Cable entry/exit ports fitted with high-quality sealing plates to prevent water ingress.
Outline and mounting dimensions
| Item | H1+H | W | D |
| DFW Low voltage cable branch box | 1000 | 600 | 350 |
| DFW Low Voltage Cable Branch Box (Floor type) | 1250 | 600 | 350 |
| DFW Low voltage cable branch box | 1000 | 800 | 350 |
| DFW Low Voltage Cable Branch Box (Floor type) | 1250 | 1000 | 350 |
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FAQ
- 🏘️ Residential Complexes
Safely distribute power from the low-voltage main cable to individual distribution boards for buildings and units. - 🏙️ Commercial Streets & Public Roads
Provide reliable power tapping points for street lighting, advertising boards, and public utility facilities. - 🏭 Industrial Parks & Construction Sites
Serve as durable temporary or permanent distribution nodes for workshops and heavy equipment. - 🌉 Critical Infrastructure
Essential for power distribution networks in tunnels, bridges, airports, and seaports. - ☀️ Renewable Energy (Solar)
Ideal for power collection and distribution in distributed photovoltaic (PV) power stations.
FAQ
1. Can I customize the internal components (e.g., MCBs, MCCBs, SPDs) in the branch box?
Absolutely. Our DFW branch boxes are highly modular. You can choose the exact combination of circuit breakers, fuses, meters, and surge protective devices based on your specific load requirements. Just send us your single-line diagram or requirements, and our engineers will design the perfect configuration for you.
2. What is the difference between the stainless steel and galvanized steel enclosures?
Both materials offer excellent protection, but they serve different environments. Galvanized steel is highly cost-effective and perfect for standard outdoor use. Stainless steel, on the other hand, provides superior corrosion resistance, making it the best choice for harsh environments like coastal areas, chemical plants, or high-humidity regions.
3. How do you ensure the box remains waterproof in heavy rain?
Our branch boxes feature an IP54 protection rating. All cable entry and exit ports are equipped with high-quality waterproof gland plates and sealing gaskets. The door is also designed with a drip-edge to prevent water from entering when opened during rain.
4. Can this branch box be used for solar (PV) power systems?
Yes! Our DFW branch boxes are widely used in distributed photovoltaic (PV) power stations for safe power collection and distribution. They can be customized with DC-rated breakers and SPDs specifically designed for solar applications.
5. What should I do if my installation environment exceeds the standard operating conditions (e.g., extreme temperatures or altitudes)?
Standard conditions are -35℃ to +45℃ and up to 5000m altitude. If your project requires operation outside these limits, please contact us before placing an order. We provide customized engineering solutions for extreme industrial environments.
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