KBO fire protection distribution box

KBO fire protection distribution boxes are specialized electrical enclosures designed to maintain critical electrical functions during a fire, with fire resistance ratings from 30 to 90 minutes. Overview and PurposeKBO fire protection distribution boxes are used in buildings and industrial facilities where maintaining electrical safety and functionality during a fire is critical. They are commonly installed in emergency lighting systems, fire alarm circuits, sprinkler pump supply lines, and smoke or heat extraction systems.

These boxes ensure that essential electrical systems continue to operate under high temperatures, supporting safe evacuation and fire suppression efforts.

Fire Resistance and Standards

These distribution boxes are tested according to DIN 4102 part 12, which evaluates their ability to maintain electrical function under fire conditions.

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O boxes typically offer E30, E60, and E90 ratings, meaning they can sustain electrical operation for 30, 60, or 90 minutes during direct exposure to fire. They also comply with VDE certifications and general building supervisory approvals, ensuring adherence to statutory fire protection requirements. Material and ConstructionKBO fire protection boxes are made from high-quality, heat-resistant materials, often halogen-free thermoplastics or ceramic components for terminal blocks.

These materials withstand extreme temperatures, sometimes up to 1,000°C, and provide robust protection against mechanical stress, dust, and water ingress, often achieving IP66 protection class. The boxes are designed to minimize damage to both people and property during a fire.

Installation and Applications

These boxes are suitable for surface-mounted or flush-mounted installations in walls, ceilings, and industrial environments. They allow for safe branching and connection of function-critical cables, and their design supports quick and reliable installation.

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O boxes are used in hospitals, assembly halls, commercial buildings, tunnels, and industrial plants, wherever fire safety and uninterrupted electrical function are required.

Key Features

Fire resistance: 30–90 minutes (E30–E90)High-temperature resistant terminals (ceramic)Halogen-free, thermoplastic or robust metal housingsProtection against dust and water (IP66)Compliance with DIN 4102 part 12, VDE, and building approvalsSuitable for critical systems: emergency lighting, alarms, sprinklers, smoke extraction KBO fire protection distribution boxes provide a reliable solution for maintaining electrical safety and functionality during fire events, ensuring compliance with fire protection regulations and enhancing overall building safety.