Air duct Rittal SK 3301.392 — steel housing, black, for 1" (2.54 cm) display

Rittal SK 3301.392 is an air duct for side air guidance in electrical enclosures with a 1" (2.54 cm) display cutout. Made of steel with a black finish, the unit is intended to guide ventilation flow around panel-mounted displays and components to support thermal management in control cabinets and industrial panels. Supplied as a single piece, this air duct is designed for integration into standard enclosure cutouts and provides a rigid and durable airflow channel.

Advantages

The steel construction and black surface treatment offer mechanical strength and corrosion resistance suitable for industrial environments. The defined 1" (2.54 cm) aperture matches common display cutouts, ensuring precise alignment and a neat installation. As a dedicated airflow accessory, the duct helps direct cooler or exhaust air where needed, reducing localized heating of electronic components and improving overall cabinet ventilation performance.

Suitable for

• Control cabinets and switchgear with a 1" (2.54 cm) display cutout
• Industrial panels requiring directed side airflow to cool displays or nearby electronics
• Retrofitting or new enclosures where a compact, steel airflow channel is needed

When it may not be suitable

This air duct is not intended as a standalone cooling system and will not provide active cooling without an appropriate cabinet ventilation strategy (fans, vents, or air conditioning). It is sized specifically for a 1" (2.54 cm) display cutout; use in enclosures with different cutout dimensions will require modification or alternative accessories.

Key specifications

• Material: Steel
• Finish: Black surface treatment
• Display cutout compatibility: 1" (2.54 cm)
• Quantity: 1 piece
• Function: Side air guidance for enclosure interiors

How to use

Install the air duct into the enclosure side opening matching the 1" (2.54 cm) display cutout, securing it according to the enclosure manufacturer's instructions or using the provided mounting points. Position the duct so that it channels airflow over the target display or electronic components; combine with cabinet fans or vents to establish an effective airflow path. Regularly inspect the duct for deformation, corrosion, or blockages and clean as needed to maintain unobstructed airflow.

What to consider before purchase

• Verify the enclosure cutout dimensions are 1" (2.54 cm) to ensure proper fit
• Confirm compatibility with the cabinet's ventilation strategy (fans, vents, filters)
• Assess environmental conditions to determine if the steel material and finish are appropriate
• Ensure mounting options in your enclosure allow secure installation of a rigid steel duct

Usage recommendations

Use the Rittal SK 3301.392 as part of a coordinated ventilation layout: place intake and exhaust fans to create directed airflow through the duct, avoid obstructing the inlet or outlet, and perform periodic maintenance checks to maintain thermal performance and prevent dust buildup.