Fireproof sliding door of distribution box

Fireproof sliding doors for distribution boxes provide automatic, reliable fire protection with resistance ratings from 30 to 120 minutes, using fire-resistant materials and tested mechanisms.

Key Features

Fire Resistance Ratings: Fireproof sliding doors are available with ratings ranging from 30, 60, 90, to 120 minutes, depending on the application and standards compliance (e.g., DIN 4102, EN 1634-1) to ensure protection of electrical distribution systems and surrounding areas . Construction Materials: These doors typically use galvanized steel or aluminum frames with fire-resistant core fillings such as rock wool. Panels are reinforced with steel profiles and threaded rods, and slats are suspended from guide rails with individual roller carriages for smooth operation . Some systems are hermetically sealed to prevent smoke penetration, which is critical in sensitive environments like hospitals or laboratories . Automatic Closing Mechanisms: Fireproof sliding doors are often held open by electromagnets and close automatically when a fire is detected or during a power failure. Closing can be triggered by counterweight systems or gravity, ensuring rapid and reliable protection . Durability and Operation: Electrically operated doors are designed for high mechanical durability, often rated for 50,000 operating cycles, making them suitable for industrial environments . Manual and automated drive options are available depending on operational requirements . Standards and Testing: Doors are tested according to DIN 4102, EN 1634-1, and other relevant fire safety standards. Some doors also meet I30/I90 and E30/E90 classifications, ensuring both interior and exterior fire protection while maintaining functionality during fire events . Additional Features: Many fireproof sliding doors include wicket/escape doors for pedestrian access, ventilation channels that close automatically during fire, and aesthetic options such as stainless steel finishes for hygienic or architectural requirements .

Applications

These doors are ideal for distribution boxes, electrical enclosures, industrial facilities, hospitals, laboratories, and commercial buildings, providing both fire and smoke protection while allowing operational access and compliance with safety regulations . By selecting a fireproof sliding door with the appropriate fire rating, material, and automatic closing system, facilities can ensure continuous protection of electrical distribution systems and personnel safety in case of fire.