Rack rail EFB Elektronik 53719.1V2 — 4U silver, 435 mm width, 55–165 mm depth

EFB Elektronik 53719.1V2 is a 4U silver rack rail designed to mount DIN-rail components and small rack-mount devices in 19" cabinets, wall or ceiling installations. The unit provides a fixed DIN-rail width of 435 mm and a stepless adjustable depth from approximately 55 mm to 165 mm, allowing compact installation of control modules, terminal blocks and other hat-rail components. A rear-sided C-rail offers an adjustable height position for cable fixing and tidy wiring; the DIN rail itself can be mounted horizontally when required.

Advantages

The product combines a 4U rack form factor with a hat-rail (DIN EN 60715 TH35) interface to support industrial and network equipment in a compact footprint. Its stepless depth adjustment lets you align mounted components precisely to the cabinet front or rear, while the silver finish provides corrosion resistance and a neutral appearance. The integrated rear C-rail improves cable routing and strain relief without additional accessories.

Suitable for

• Mounting DIN-rail devices such as circuit breakers, relays and terminal blocks inside 19" racks
• Small network or control panels where 4U height and shallow depth are required
• Wall- or ceiling-mounted installations where space-saving DIN-rail mounting is needed
• Environments that require horizontal DIN-rail mounting for specific component layouts

Key specifications

• Rack height: 4U
• DIN-rail standard: DIN EN 60715 TH35 (35 x 7.5 mm)
• DIN-rail width: 435 mm
• Depth adjustment range: approx. 55 mm to 165 mm (stepless)
• Rear C-rail included for cable fixing; height-adjustable
• Finish: silver

How to use

Install the rack rail into a compatible 19" cabinet at the chosen 4U position using standard rack screws. Position the DIN rail at the desired depth within the 55–165 mm range and secure it. Mount DIN-rail components directly onto the TH35 rail; if horizontal mounting is needed, orient and fasten the rail accordingly. Use the rear-sided C-rail to route and secure cables, adjusting its height to optimize strain relief and cable paths.

Usage recommendations

For secure and reliable installation, check cabinet depth and available mounting space before fitting. Use appropriate rack mounting hardware and follow component manufacturers' instructions for attaching devices to the DIN rail. When routing cables, use the adjustable C-rail to reduce strain on connectors and maintain clearances for ventilation.