Door stay Rittal SZ 8618.425 — metallic door support for enclosures, 1 pc, 250 g

Rittal SZ 8618.425 is a metallic door stay designed for industrial enclosures and cabinets. Supplied as a single piece weighing approximately 250 g, this door support provides controlled retention and positioning for access doors, reducing the risk of sudden closing while ensuring secure access to electrical enclosures, server racks and control cabinets. The stay is actuated automatically under pressure and releases the door in both directions; when used with 180° hinges it prevents open doors from blocking escape routes in emergency situations.

Advantages

The metal construction delivers durable mechanical support and consistent door behaviour over repeated operation cycles. Its single-piece supply simplifies replacement and installation in retrofit or new-build enclosures. Automatic pressure actuation and bidirectional release add a safety function that helps keep escape routes clear when combined with appropriate hinges. The compact form factor and moderate weight make it suitable for a wide range of enclosure door sizes without adding excessive load on hinge assemblies.

Suitable for

• Electrical and control equipment enclosures
• Server racks and telecommunications cabinets
• Industrial machine housings with service access doors
• Retrofit and maintenance applications requiring controlled door retention

Key specifications

• Material: metallic construction for mechanical strength
• Supply: single unit (1 pc)
• Weight: approximately 250 g
• Operation: pressure-actuated with bidirectional release
• Compatibility: suitable for doors paired with 180° hinges to avoid blocking escape routes

How to use

Install the door stay on the enclosure according to the manufacturer’s mounting recommendations, ensuring correct alignment with the door and hinge axis. Fasten using appropriate hardware and verify the stay engages and releases smoothly through the full range of door motion. For emergency-safety behavior, pair the stay with 180° hinges so the automatic pressure actuation can release the door in either direction and prevent obstruction of escape routes. Test operation after installation and during routine maintenance to confirm consistent performance.

Usage recommendations

Use the door stay in enclosures where predictable door retention and safe bidirectional release are required. Regularly inspect mounting points and moving parts for wear or corrosion, and replace the stay if mechanical function degrades. Avoid modifying the stay or using non-recommended fasteners that could impair automatic release behavior.