Outer corner for fire-resistant duct

Outer corners for fire-resistant ducts are specialized fittings designed to maintain the integrity of cable management systems in fire-critical environments. These components are typically manufactured from galvanized steel or stainless steel, with thicknesses ranging from 0.8 mm to 1.5 mm, ensuring structural rigidity under high temperatures. They feature a 90-degree angle design with pre-punched mounting holes for secure attachment to the duct system, and are compatible with standard fire-resistant duct widths of 100 mm to 600 mm. The outer corner ensures a continuous fire-rated seal, preventing flame and smoke propagation through cable pathways, and is often tested to standards like EN 1366-1 or UL 2196 for fire resistance up to 120 minutes.

These outer corners are primarily installed in commercial and industrial buildings where fire safety regulations are stringent, such as data centers, hospitals, airports, and manufacturing plants. They are used within electrical distribution systems, cable trays, and trunking networks to protect critical power and control cables. The fittings are essential in vertical and horizontal runs where ducts change direction, ensuring that the fire-resistant barrier remains unbroken. They are also common in tunnels, substations, and offshore platforms where passive fire protection is mandatory.

Key subcategories include standard 90-degree outer corners, adjustable angle corners, and flanged versions for heavy-duty applications. Article codes often follow a pattern like FDC-OC-100 for a 100 mm width corner, where "FDC" denotes fire-resistant duct component, "OC" for outer corner, and the number indicates the duct width in millimeters. Other common codes include FDC-OC-200, FDC-OC-300, and FDC-OC-600, with variations for different material grades (e.g., "GS" for galvanized steel, "SS" for stainless steel). These codes are typically found in product catalogs from manufacturers like Legrand, ABB, or Schneider Electric.

Partnering with Electric Automation Network ensures access to genuine fire-resistant duct fittings with real-time pricing and global express shipping. Our engineering team provides technical support for selecting the correct outer corner based on duct dimensions, fire rating requirements, and installation environment. We offer detailed documentation including installation manuals and test certificates, ensuring compliance with local fire safety codes. Whether for a new project or retrofit, we streamline procurement with personalized service and fast delivery worldwide.