Back panel SCHROFF 3U 42TE open-perforated unshielded for mounting on housing frame

SCHROFF back panel, 3U (3HE) size with 42 TE width, open-perforated and unshielded, designed for mounting on a housing frame. The panel closes the rear of a modular rack or chassis while maintaining airflow through its perforated surface. It provides mechanical support and organized cable access for electronic modules and assemblies commonly used in industrial control, telecom and embedded computing installations.

Advantages

The open-perforated design ensures efficient ventilation and passive cooling for installed modules while the unshielded construction keeps the panel lightweight and easy to handle. The 3U height and 42 TE width conform to common modular rack standards, allowing straightforward integration into existing frame systems. Solid mechanical fastening points deliver reliable support for cards and cable bundles without introducing electromagnetic shielding that could obstruct thermal dissipation.

Suitable for

• Closing the rear of modular rack frames and chassis
• Industrial control cabinets and automation enclosures
• Telecommunication and network equipment housings
• Embedded computing and test systems requiring airflow and access

Key specifications

• Form factor: 3U (3HE) height
• Width: 42 TE (module width units)
• Construction: open-perforated metal panel
• Shielding: unshielded design
• Mounting: designed for attachment to housing frame
• Function: mechanical closure with ventilation and cable access

How to use

Position the panel at the rear section of the housing frame and align the mounting holes with the frame’s fastening points. Secure the panel using appropriate screws or clip fasteners compatible with the frame; ensure even tightening to avoid distortion of the perforated surface. Route module cabling through the intended openings and verify that airflow paths are unobstructed to maintain passive cooling. If additional strain relief is required, use cable ties or clamps anchored to the frame rather than the perforated sheet to prevent damage.

Usage recommendations

Use the panel in environments where passive ventilation is sufficient; avoid installing it where electromagnetic shielding is required. For systems with significant airflow needs, ensure that adjacent panels and inserts do not block the perforations. Periodically inspect mounting hardware and cable routes to maintain mechanical stability and unobstructed ventilation.