Fire protection distribution box models and specifications

Dedicated fire protection distribution boxes are designed to maintain electrical functionality during fire events, with fire resistance ratings from 30 to 90 minutes (E30–E90) and robust materials like polycarbonate or steel.Key SpecificationsFire Resistance and Functional Integrity:Fire protection boxes are rated according to DIN 4102 standards, with classifications such as F30/F90, I30/I90, and E30/E90, indicating fire resistance duration and ability to maintain electrical function during fire .Electrical functions are maintained for 30 to 90 minutes, depending on the model, ensuring safety for emergency systems like lighting and smoke extraction . Materials and Construction:Bodies are typically made of polycarbonate, halogen-free plastics, or steel, providing high heat and fire resistance .Cabinets often include elastic smoke and fire seals around doors to prevent smoke ingress . Protection and Environmental Ratings:High IP65 protection ensures dust and water resistance .Operational temperature ranges are generally -25°C to 55°C, suitable for various indoor environments . Mounting and Installation:Options include surface-mounted, in-wall, or free-standing enclosures .Mounting kits are available for concrete, reinforced or unreinforced, and natural stone surfaces, with dowels tested for fire-rated installations .Ventilation systems are designed to close automatically in case of fire, maintaining internal safety .Models and ConfigurationsM-BOX Series:Compact junction boxes with dimensions like 136x136x67 mm, maintaining E30–E90 electrical function .Variants differ in connector orientation (horizontal/oblique), number of terminal blocks, and maximum cross-section.Example: M-BOX v1s – E90, 6 terminal blocks, 24 connectors, 390 g . L-BOX Series:Larger distribution boxes, e.g., 140x190x86 mm, supporting more complex wiring .Configurations include 16 horizontal connectors or oblique arrangements, with fire resistance up to E90.Example: L-BOX v4p – E90, 16 horizontal connectors, 650 g . Other Manufacturer Options:ABB Fire Protection Enclosures: Surface-mounted or door-mounted, fire resistance F30/F90, I30/I90, E30/E90, with ventilation channels .KM FIRE Cabinets: Free-standing, surface-mounted, or in-wall, with EI-rated circuit integrity and smoke-tightness Sa/S200 .Spelsberg WKE Series: Cable junction and distribution boxes with E30–E90 ratings, tested per DIN 4102 part 12 .EAS SECURUS GH Cabinets: Fire-resistant cabinets for electrical distribution, functional integrity 30–90 minutes, with general building approval .Additional FeaturesCable entry and through holes designed for fire safety, with automatic closure in fire events .Locking mechanisms include turning levers compatible with DIN semi-cylinders .Customizable configurations are available via manufacturer configurators for specific project requirements . These fire protection distribution boxes are essential for maintaining critical electrical systems during fire emergencies, ensuring compliance with safety regulations, and protecting both personnel and property.