Electrical enclosure Rittal 9791.045 aluminium IP55 for outdoor use, WxD=630x380 mm, H=780 mm

Rittal 9791.045 aluminium electrical enclosure is a wall-mounted outdoor cabinet with an internal footprint of 630 mm width, 380 mm depth and 780 mm height and an IP55 protection rating. Designed for outdoor wall or pole mounting, the enclosure offers protection against dust and water jets, and features an enclosure-within-an-enclosure concept with an outer housing that includes a bottom cut-out and integrated louvres on the rear and side panels to support passive ventilation while maintaining protection.

Advantages

The aluminium construction provides a balance of strength and corrosion resistance suitable for exposed installations. IP55 protection ensures reliable defence against dust ingress and water splashes typical for outdoor industrial and commercial sites. The inner footprint accommodates control equipment, terminal blocks or compact switchgear, while the enclosure-within-an-enclosure layout and integrated louvres help manage internal temperatures without compromising environmental protection. The unit is ready for wall-mounted installation and can be adapted for pole mounting where applicable.

Suitable for

• Housing electrical control equipment and terminal blocks for outdoor applications
• Wall-mounted distribution points for industrial or commercial sites
• Remote sensor or control cabinets requiring IP55 protection
• Installations where a lightweight, corrosion-resistant metal enclosure is preferred

When it may not be suitable

This enclosure provides IP55 protection but is not rated for full immersion or high-pressure washdown environments; it is not suitable where IP66/67-level protection or marine-grade enclosures are required. Very large switchgear, motor control centres or equipment requiring extensive internal ventilation or active cooling may exceed the internal footprint or thermal management capabilities of this cabinet.

Key specifications

• Material: aluminium housing for outdoor use
• Protection class: IP55 (dust-protected, protected against water jets)
• Internal dimensions (WxD): 630 x 380 mm
• Height (internal): 780 mm
• Mounting type: wall-mounted (suitable for wall or pole mounting with appropriate accessories)
• Ventilation: integrated louvres on rear and side panels; enclosure-within-an-enclosure design

How to use

Position and fix the enclosure to a suitable wall or pole using appropriate fasteners and mounting accessories rated for outdoor conditions. Install DIN-rail(s), mounting plates or back panels inside the internal footprint to secure terminal blocks, control modules or other electrical components. Ensure cable entries, glands and conduits are fitted with compatible seals to maintain IP55 protection. Route wiring and secure components to prevent strain on connections and to allow airflow through the integrated louvres. Perform regular visual inspections of gaskets, seals and fastenings to preserve environmental protection.

What to consider before purchase

• Confirm that the internal dimensions (630 x 380 x 780 mm) suit your equipment and mounting accessories
• Assess whether IP55 protection is sufficient for your environmental conditions or if a higher ingress protection rating is required
• Plan for cable entries, gland size and mounting hardware needed for wall or pole installation
• Consider ventilation and heat dissipation requirements for installed electronics

Usage recommendations

For best results, install appropriate cable glands and strain reliefs, mount internal equipment on DIN rails or a back plate, and schedule periodic checks of gaskets and ventilation louvres to maintain IP55 performance in outdoor environments.