Rack rail ROLINE 26.21.0102 — steel silver, 1 pc, for 19 inch rack mounting

ROLINE 19 inch DIN rail support 3 U (133 x 482 x 123 mm HxWxD) is a steel rack rail finished in silver, designed for mounting top-hat rail devices inside 19" racks. The unit provides a sturdy mounting point for equipment in server cabinets and network racks and includes a rear opening for cable feed-through.

Advantages

The steel construction offers robust mechanical support and long-term durability while the silver finish provides a neutral appearance that fits most rack environments. Supplied as a single-piece rail, it simplifies installation for devices that require a top-hat rail mount and features a rear 40 x 35 mm opening to route cables cleanly through the support.

Suitable for

• Mounting top-hat (DIN) rail devices inside 19" server racks and network cabinets
• Use in data centres, server rooms and telecom installations where stable rail support is needed
• Retrofit or new installations that require a 3 U high rail support

When it may not be suitable

This rail is intended specifically for 19" rack environments and for devices that mount on a top-hat (DIN) rail; it is not suitable for free-standing equipment or for racks that do not provide the necessary 19" mounting points. If you need additional rails, brackets or rails with different heights or widths, choose a product matched to those dimensions.

Key specifications

• Dimensions (H x W x D): 133 x 482 x 123 mm
• Height: 3 U
• Material: steel
• Finish: silver
• Rear cable opening: 40 x 35 mm
• Quantity: 1 piece per pack

How to use

Install the rail into a compatible 19" rack by aligning it with the rack mounting points and securing it using appropriate rack screws or hardware. Mount top-hat rail devices onto the support according to the device manufacturer's instructions. Route cables through the 40 x 35 mm rear opening to keep wiring tidy and to maintain access to rear connectors.

What to consider before purchase

• Confirm your rack is a standard 19" cabinet with available mounting positions
• Verify that the 3 U height and the 133 x 482 x 123 mm dimensions match your installation requirements
• Ensure your devices are compatible with top-hat (DIN) rail mounting

Recommendations

Use appropriate rack fastening hardware and, for heavy equipment, consider additional supports or multiple rails to distribute weight evenly. Route and secure cables through the rear opening to prevent strain on connectors.