Single-Core Cable Junction Box Model D-JFZ-500/95 – Professional Branch Connection Solution
Xi'an OUKAMU Power Technology Co., Ltd. specializes in Single-Core Cable Junction Box manufacturing with 20 years of proven expertise in branch cable joint technology. Our Model D-JFZ-500/95 delivers integrated solutions featuring insulation, flame retardant, fire resistance, and waterproof protection for main cables 400~500mm² and branch cables 70~95mm². Operating at rated voltage 0.6/1kV, this reusable junction box requires no main cable cutting or length reservation, offering flexible installation positions. Compliant with GB/T 14048.7-2016 and international safety standards, it saves 2-3 meters of main cable per installation while reducing labor costs and time—delivering exceptional cost performance backed by over 150 national invention patents.
Why Choose Our Single-Core Cable Junction Box?
When your project demands reliable cable branching without disrupting the main power line, you need a solution that balances efficiency with safety. Our junction box eliminates traditional pain points in electrical installations.
Traditional cable branching requires:
- Cutting the main cable
- Power downtime
- Complex splicing work
- Additional cable reserves
- Extensive labor hours
Our approach changes everything:
- Main cable stays intact
- Installation during operation
- Plug-and-play connection
- Zero cable waste
- Reduced installation time by 60%
You get a connection solution that respects your project timeline and budget.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | D-JFZ-500/95 |
| Main Cable Range | 400~500mm² |
| Branch Cable Range | 70~95mm² |
| Rated Voltage | 0.6/1kV |
| Protection Features | Insulated, Flame Retardant, Fire Resistant, Waterproof |
| Compliance Standards | GB/T 14048.7-2016, International Safety Standards |
| Cable Saving | 2-3 meters per installation |
| Installation Method | No main cable cutting required |
| Reusability | Fully reusable |
| Installation Position | Flexible, surface or bridge-mounted |
Product Selection
| Product Name | Model Number | Specifications | Unit | |
| Range of Cross-Sectional Areas for Main Cables | Range of Cross-Sectional Areas for Branch Cables | |||
| Single-Core Integrated Splitter | D-JFZ-50/35 | 10~50 | 6~35 | Set |
| Single-Core Integrated Splitter | D-JFZ-95/50 | 50~95 | 6~50 | Set |
| Single-Core Integrated Splitter | D-JFZ-185/35 | 120~185 | 6~35 | Set |
| Single-Core Integrated Splitter | D-JFZ-185/70 | 70~185 | 50~70 | Set |
| Single-Core Integrated Splitter | D-JFZ-185/95 | 70~185 | 70~95 | Set |
| Single-Core Integrated Splitter | D-JFZ-300/50 | 240~300 | 6~50 | Set |
| Single-Core Integrated Splitter | D-JFZ-300/95 | 240~300 | 70~95 | Set |
| Single-Core Integrated Splitter | D-JFZ-300/185 | 120~300 | 120~185 | Set |
| Single-Core Integrated Splitter | D-JFZ-500/50 | 400~500 | 6~50 | Set |
| Single-Core Integrated Splitter | D-JFZ-500/95 | 400~500 | 70~95 | Set |
| Single-Core Integrated Splitter | D-JFZ-500/150 | 400~500 | 120~150 | Set |
| Single-Core Integrated Splitter | D-JFZ-500/240 | 240~500 | 185~240 | Set |
| Single-Core Integrated Splitter | D-JFZ-630/50 | 630 | 6~50 | Set |
| Single-Core Integrated Splitter | D-JFZ-630/95 | 630 | 70~95 | Set |
| Single-Core Integrated Splitter | D-JFZ-630/150 | 630 | 120~150 | Set |
| Single-Core Integrated Splitter | D-JFZ-630/240 | 630 | 185~240 | Set |
| Single-Core Integrated Splitter | D-JFZ-630/400 | 300~400 | 300~400 | Set |

Key Features That Make Installation SimpleEffortless Installation Process
Your installation team will appreciate the straightforward approach. The product connects directly at the construction site without specialized tools or complicated procedures.
No main cable cutting means:
- Zero power interruption
- No need to coordinate shutdowns
- Immediate branch connection
- Safe working conditions
- Beautiful, professional finish
Integrated Design Philosophy
The junction box houses both main and branch cable connections within a single flame-retardant, fire-resistant insulated body. This integrated approach ensures:
- Secure mechanical connection
- Comprehensive electrical insulation
- Aesthetic appearance
- Dust and moisture protection
- Long-term reliability
Compact Yet Versatile Structure
Size matters when you're working in confined spaces. Our compact design fits:
- Open installation environments
- Cable bridge systems
- Underground vaults
- Tight equipment rooms
You won't sacrifice performance for space savings.
Built for Durability
Your installation should last decades, not years. Our Single-Core Cable Junction Box withstands:
- Extreme temperatures
- High humidity environments
- UV exposure
- Chemical atmospheres
- Electrochemical corrosion
The flame-retardant and fire-resistant materials meet stringent safety requirements. Dustproof and anti-aging properties ensure consistent performance throughout the product lifecycle.
Cost Benefits You Can Measure
Direct Cable Savings
Every installation saves 2-3 meters of expensive main cable. Multiply this across hundreds of connection points, and you're looking at substantial material cost reduction.
Labor Efficiency
Traditional branch connections require:
- 4-6 hours of skilled labor
- Multiple technicians
- Specialized splicing equipment
Our system reduces this to:
- 1-2 hours installation time
- Single technician operation
- Standard tools only
Reduced Building Requirements
No need for oversized junction rooms or complex cable routing. The compact footprint minimizes:
- Vault construction costs
- Building space allocation
- Support structure requirements
Reusability Advantage
Unlike single-use splicing systems, you can remove and reinstall the junction box when:
- Reconfiguring cable routes
- Upgrading equipment
- Relocating branch connections
- Performing maintenance
This reusability transforms your cable infrastructure from fixed to flexible.
Enterprise-Level Reliability
20 Years of Specialization
Since 2007, we've focused exclusively on cable connection technologies. This isn't a side product—it's our core expertise. Over 150 national invention patents protect our innovations in branch connection systems.
Proven in Major Infrastructure
Our technology operates in:
- Hong Kong–Zhuhai–Macao Bridge
- Multiple high-speed railway systems
- Urban metro networks
- Olympic facilities
- Hospital critical power systems
More than 10,000 projects rely on our connection solutions daily.
Quality That Meets Global Standards
Compliance with GB/T 14048.7-2016 and international safety standards isn't optional—it's foundational. Every junction box undergoes rigorous testing:
- Electrical performance verification
- Fire resistance testing
- Environmental stress screening
- Mechanical durability assessment
Single-Core Cable Junction Box You receive products that meet your project's certification requirements.
Applications Across Industries
Municipal Infrastructure
Street lighting systems, traffic signals, and public facility power distribution benefit from flexible branch connections without service disruption.
Commercial Construction
Office buildings, shopping centers, and mixed-use developments require adaptable power distribution as tenant needs change.
Transportation Networks
Railway stations, airports, and metro systems demand reliable connections that withstand vibration, temperature extremes, and high utilization.
Industrial Facilities
Manufacturing plants, warehouses, and processing facilities need robust connections that tolerate harsh environmental conditions.
Healthcare Facilities
Hospitals and medical centers require connections that maintain power integrity for critical life-safety systems.
Installation Advantages
No Main Cable Interruption
Your existing power remains energized throughout the installation process. This is critical for:
- 24/7 operations
- Critical infrastructure
- High-availability systems
Position Flexibility
Install the junction box exactly where you need the branch connection—not where the cable layout dictates. This freedom allows:
- Optimal equipment placement
- Shorter branch cable runs
- Reduced voltage drop
- Better system organization
Weather-Independent Installation
The waterproof design allows installation regardless of weather conditions. Rain or shine, your project stays on schedule.
FAQ
Q1: Can the product handle different cable sizes within the specified range?
A: Yes, the D-JFZ-500/95 model accommodates main cables from 400~500mm² and branch cables from 70~95mm². The connection mechanism adjusts within these ranges without requiring different junction box models.
Q2: How does the junction box maintain waterproof integrity?
A: The integrated insulated body features factory-sealed construction with IP-rated protection. Unlike field-applied waterproofing attempts, our junction box achieves waterproof performance through precision-molded seals and gaskets that maintain integrity throughout the product lifecycle.
Q3: What happens if I need to relocate a branch connection?
A: Simply disconnect the junction box, remove it from the main cable (which remains uncut and intact), and reinstall it at the new location. The reusable design makes reconfiguration straightforward without wasting materials.
Q4: Does installation require specialized training?
A: Licensed electricians can install the junction box using standard tools and following provided instructions. No proprietary equipment or factory training is necessary, though we offer technical support at info@okmbranchcable.com.
Q5: How does this compare to traditional cable splicing?
A: Traditional splicing requires cutting the main cable, creating permanent connections, and extensive labor. Our junction box eliminates cutting, reduces installation time by 60%, allows reuse, and saves 2-3 meters of cable per connection—delivering lower total cost with superior flexibility.
Q6: What maintenance does the junction box require?
A: The sealed, insulated design is essentially maintenance-free. Periodic visual inspection during routine facility checks is sufficient. No internal servicing, resealing, or adjustments are required during normal operation.
Q7: Can this be used in underground or high-humidity environments?
A: Absolutely. The waterproof, dustproof, and anti-aging properties make it ideal for underground vaults, coastal areas, and high-humidity environments where electrochemical corrosion typically challenges conventional connections.
Contact Us
Single-Core Cable Junction Box Ready to simplify your cable branch connections? Reach out to our technical team at info@okmbranchcable.com for specifications, pricing, and application support.












