Skip to content 
Product Overview
The DDF-0.4/144 cable branch box is specifically designed for flexible cable entry and exit management. The bottom plate features pre-scored “knock-out” holes that can be adapted to various cable diameters. To ensure maximum durability and internal safety, the front and rear doors are reinforced with a convex-concave frame and high-quality rubber sealing strips. Additionally, the unit incorporates a specialized zigzag ventilation path at the top to facilitate constant airflow while preventing moisture buildup. Both incoming and outgoing lines utilize high-performance strip-type fuse switches for reliable circuit protection.
Product Features
- High-Performance SMC Construction: Molded from unsaturated polyester fiberglass-reinforced plastic (SMC) to withstand chemical erosion and extreme weather for over 30 years.
- Superior Sealing & Protection: The modular design combined with high-performance seals provides effective protection against rain, dust, and pests, meeting GB4208-IP53 standards.
- Enhanced Security: Equipped with a secure three-point door lock system to prevent unauthorized access and ensure user safety.
- Flexible Installation: Supports both ground-standing (floor) and wall-mounted installation to suit diverse site requirements.
- Spacious & Maintenance-Friendly: Designed with a reasonable layout and double-box configuration to simplify installation and routine repairs.
Technical & Artistic Details
The DDF-0.4/144 is built to withstand mechanical stress and environmental extremes while providing high electrical safety.
- Mechanical Integrity: The enclosure surface is designed to support a load value of > 980N, while the door hinges can withstand over 200N of force.
- Environmental Resilience: Optimized for operation in temperatures ranging from -40°C to +60°C with a relative humidity tolerance of < 95%.
- Flame Retardancy: The SMC material achieves an FV0 grade for flame retardancy, ensuring high fire safety in residential areas.
- Insulation Security: Provides a standard insulation resistance of $2 \times 10^4 \Omega$ at 500V (DC).
- Ventilation Design: A tortuous ventilation duct system ensures air exchange while maintaining the unit’s sealing integrity.
