Power distribution unit Rittal DK 7859.090 PDU, modular, 1 AC outlet, 3 m cable, 32 A

Rittal DK 7859.090 is a modular power distribution unit (PDU) designed for installation in electrical cabinets and server racks where space efficiency and reliable mains distribution are required. The unit provides a single AC outlet and is fitted with a 3 m supply cable rated for up to 32 A, allowing straightforward connection of single-phase equipment in industrial, network and data-centre environments. Its zero-U mounting option enables installation without occupying front or rear rack units, making it suitable for compact or densely populated enclosures.

Advantages

The PDU’s modular design simplifies integration into existing cabinet layouts and supports standardized power distribution across multiple installations. A 3 m supply cable gives flexibility in positioning relative to mains sources, while the 32 A current rating accommodates higher-power single-phase loads. Zero-U mounting preserves valuable rack space and reduces the need for additional mounting hardware. The unit is built to fit common cabinet environments and to provide a straightforward, low-complexity power solution for single-outlet requirements.

Suitable for (tasks / use cases)

• Powering single-phase devices such as PDUs, network switches, or small UPS units inside cabinets and racks
• Zero-U mounting in data centres and telecommunications racks where rack unit space must be preserved
• Industrial control panels and machine cabinets requiring a compact, high-current AC outlet
• Retrofit projects where a single, reliable mains feed is needed without reconfiguring rack layout

When it may not be suitable

This PDU provides only one AC outlet, so it is not appropriate where multiple device outlets are required unless used together with additional distribution hardware. It is designed for single-phase mains and therefore not suitable for three-phase distribution needs. Sites requiring remote monitoring, metering, or outlet-level switching should consider PDUs with those integrated features instead.

Key specifications

• Outlet configuration: single AC outlet for single-phase equipment
• Cable length: 3 m supply cable for mains connection
• Current rating: up to 32 A
• Mounting: zero-U / cabinet/rack mounting to avoid using rack units
• Application environment: electrical cabinets, server racks, industrial enclosures

How to use

Install the unit in the cabinet or rack using the zero-U mounting arrangement so it does not occupy rack units. Route the 3 m supply cable to the mains intake or appropriate circuit breaker and connect following local electrical regulations and safety standards. Plug the single-phase device into the AC outlet and verify load does not exceed the 32 A rating. Ensure proper grounding of the cabinet and perform an initial load test to confirm correct operation before placing connected equipment into service.

What to consider before purchase

• Confirm that a single AC outlet meets your device-count and distribution needs
• Verify compatibility with your facility’s single-phase mains and that 32 A is sufficient for your load
• Check that zero-U mounting fits your cabinet layout and that the 3 m cable reaches the intended mains connection point
• Assess whether additional features such as outlet switching, metering, or remote management are required

Usage recommendations

Use this PDU for compact, high-current single-outlet distribution inside cabinets and racks; keep total connected load below 32 A, secure cable routing to avoid strain on the supply cord, and follow local electrical codes during installation.