Power distribution unit Rittal 7979.516 — PDU 28 AC outlets (24×C13, 4×C19), 32A 230V, 3 m cable, grey

Rittal 7979.516 is a rack-mount power distribution unit (PDU) designed for single-phase 230 V IT environments. It provides 28 AC outlets — 24×C13 and 4×C19 — and supports up to 32 A (7,400 W) input via a 3 m cable. Constructed from aluminium and plastic with a grey finish, the unit is intended for organised power distribution in server racks, data centres and IT cabinets. The PDU includes integrated measurement functions for monitoring energy use per output and features convenient mounting options for vertical or zero-U installation in compatible Rittal racks.

Advantages

The PDU combines a high outlet density with integrated measurement accuracy, allowing individual monitoring of connected equipment. It offers tool-free mounting options for specific rack types and a compact form factor that conserves rack space. Phase and circuit colour coding, audible alarm capability and adjustable limits for current and power help to simplify operation and fault identification. The device is self-supplied and does not require an external power supply for its measurement and signalling functions.

Suitable for

• Data centres and server rooms that require centralised power distribution with monitoring
• Network racks and IT cabinets hosting multiple rack-mount or blade servers
• Environments where outlet-level energy measurement and configurable alarms are needed
• Racks that support vertical or zero-U mounting, including compatible Rittal VX IT or TS IT systems

When it may not be suitable

This PDU is engineered for single-phase 230 V systems and is not suitable for three-phase distribution without appropriate upstream conversion or infrastructure. It requires a 32 A supply to deliver the stated maximum capacity; installations with lower-rated feeds will deliver proportionally lower available power. Where isolated outlets, specialised surge protection with specific certifications, or integrated switched outlet control are required, verify that this model meets those needs before purchase.

Key specifications

• AC outlets: 24 × C13 and 4 × C19
• Maximum current: 32 A
• Rated voltage: 230 V, single-phase
• Maximum power capacity: 7,400 W
• Cable length: 3 m input cable
• Housing materials: aluminium and plastic; colour: grey
• Measurement accuracy: ±1% (kWh) to EN 62053-21
• Integrated real-time clock with battery buffering (battery replaceable)
• Audible alarm (integral electromagnetic buzzer) and adjustable warning/alarm limits per output
• Phase and fuse circuit colour coding for easier identification

How to use

Mount the PDU vertically in a compatible rack or install it in the zero-U space of supported Rittal rack models according to the rack manufacturer’s instructions. Connect the input cable to a suitable 32 A, 230 V supply with correct upstream protection and wiring. Plug server and network equipment into the C13 and C19 outlets as required, taking outlet-level power and current limits into account. Use the integrated measurement and limit settings to monitor consumption and configure audible alarms or warnings per outlet. Replace the real-time clock battery when indicated to ensure continued time-stamped measurement accuracy.

What to consider before purchase

• Confirm the rack compatibility (vertical or zero-U mounting) with your cabinet model
• Verify that your electrical supply provides a 32 A, 230 V single-phase feed or adjust expectations for lower-rated supplies
• Ensure the outlet types (C13 and C19) match the plugs of your equipment
• Check whether additional surge protection, switched outlets or remote management features are required beyond the integrated measurement functions

Usage recommendations

Distribute high-draw equipment across multiple outlets and configure per-outlet alarm thresholds to detect overload conditions early. Regularly review logged measurements to balance loads within the rack and to plan capacity upgrades. When installing in shared infrastructure, coordinate phase colouring and circuit labelling with facility wiring for clearer fault identification.