An obtuse angle cable tray is a specialized fitting that allows cable trays to change direction at angles greater than 90 degrees, ensuring smooth routing of cables in complex installations.

Overview

Obtuse angle cable trays are used to redirect cable runs at wide angles, typically between 120° and 150°, without sharp bends that could damage cables or reduce airflow. These fittings are essential in industrial, commercial, and offshore installations where cable routing must navigate structural obstacles or follow architectural layouts .

Types and Materials

Obtuse angle fittings are available in various materials to suit environmental and load requirements:

• Stainless steel: Corrosion-resistant, ideal for harsh or outdoor environments .
• Galvanized steel: Provides durability and moderate corrosion protection .
• Aluminium: Lightweight and corrosion-resistant, suitable for indoor or light-duty applications .
• Fiberglass (FRP/GRP): Non-conductive and corrosion-resistant, often used in chemical or offshore environments . These fittings can be solid, perforated, or ladder-style, depending on the type of cable tray system and the weight of the cables being supported .

Applications

Obtuse angle cable trays are commonly used in:

• Industrial facilities: Factories and plants with complex machinery layouts.
• Commercial buildings: Office or data center cable management.
• Offshore and marine installations: Where corrosion resistance and structural integrity are critical .
• Electrical and instrumentation systems: Ensuring safe and organized routing of power, control, and data cables .

Installation Considerations

• Ensure the angle matches the required routing path to avoid unnecessary stress on cables.
• Use compatible brackets and support elements to maintain stability and comply with load requirements .
• Follow standards such as DIN EN 61537 for cable support systems to ensure safety, ventilation, and accessibility .
• Obtain fittings that match the width and height of the existing cable tray to maintain a continuous support system .

Examples

• ABB AB228SS6C 45° obtuse angle fitting: Designed for standard cable trays, providing a smooth wide-angle transition .
• Obtuse 45-degree angle brackets: Used to join strut channels or cable tray sections at wide angles, typically 41–21 mm in size . Obtuse angle cable trays are a critical component for efficient, safe, and flexible cable management, allowing installations to navigate complex layouts while maintaining compliance with electrical standards and ensuring long-term performance.