Cable Brancher Cable Tray

A cable tray brancher is a specialized fitting that allows a main cable tray to split into one or more secondary trays, enabling organized routing of cables in multiple directions.

Function and Purpose

A cable tray brancher is used to divert cables from a main tray to secondary paths without compromising cable support or safety. It ensures that cables are routed neatly, reduces stress on the cables, and maintains compliance with electrical installation standards . Branchers are essential in complex installations where cables need to reach different areas from a single main tray.

Types of Cable Tray Branchers

• T-Branchers: Split a main tray into two perpendicular paths.
• Y-Branchers: Provide a smoother, angled split to reduce cable bending stress.
• Cross-Branchers: Allow four-way intersections for complex routing. These branchers are compatible with perforated trays, ladder trays, and solid-bottom trays, depending on the system design .

Materials and Coatings

Cable tray branchers are typically made from galvanized steel, stainless steel, or aluminum, providing strength and corrosion resistance. Galvanized steel often features a zinc coating applied via continuous dipping, which protects against oxidation and ensures durability in indoor and outdoor environments . For specialized environments, halogen-free plastic or fiberglass-reinforced systems may be used.

Installation

Branchers are installed by connecting them to the main tray using screws, bolts, or quick-connect systems. Modern systems, such as OBO's Magic plug connection, allow tool-free installation, speeding up assembly while maintaining stability and safety . Proper alignment and support are crucial to prevent sagging and maintain cable integrity.

Standards and Compliance

Cable tray branchers must comply with DIN EN 61537, IEC 61537, NEMA VE-1/VE-2, and relevant national electrical codes (e.g., VDE 0100, NEC). These standards ensure load-bearing capacity, fire safety, and proper cable separation . Correct sizing is determined by the total cable cross-section, fill ratio (typically max. 50% for power cables), and load curves.

Applications

Cable tray branchers are widely used in:

• Industrial facilities and factories
• Commercial buildings and data centers
• Renovation and retrofit projects
• Outdoor and rooftop installations They provide flexible, safe, and organized cable routing, reducing installation time and improving long-term maintenance . In summary, a cable tray brancher is a critical accessory for efficient cable management, enabling multiple routing paths while maintaining compliance, safety, and structural integrity.