Power Distribution Unit Rittal 7979.437 30 AC outlets 0U Black

The Rittal 7979.437 is a managed power distribution unit (PDU) for IT racks, offering 30 AC outlets in a 0U vertical form factor for three-phase installations. It includes per-outlet energy measurement and monitoring, a 3 m input cable with a CEE connector (16 A or 32 A), C13 and C19 outputs, and supports firmware updates via USB. The unit is intended for secure, measurable power distribution in server cabinets and network racks with a nominal input voltage of 400 V and a maximum current rating of 32 A.

Advantages

This PDU provides individual measurement and monitoring for each output slot with a measurement accuracy of ±1% (kWh) to EN 62 053-21. It supports programmable startup behaviour after voltage recovery and flexible switching logic for outputs. The device is self-powered (no external supply needed), includes an internal real-time clock with replaceable battery, an electromagnetic buzzer for acoustic alarms, and adjustable per-outlet warning and alarm thresholds for current, voltage and power. Tool-free mounting options and phase/fuse colour coding simplify installation and maintenance.

Suitable for

• Data centres and server rooms requiring per-outlet energy monitoring
• Network cabinets and IT racks using three-phase power distribution
• Applications needing programmable startup and switching behaviour
• Environments where tool-free 0U vertical mounting is preferred

Key specifications

• Model: Rittal 7979.437
• Form factor: 0U vertical, black
• Outlets: 30 AC outlets (C13 and C19)
• Input connector: CEE (16 A / 32 A), 3 m cable
• Nominal input voltage: 400 V
• Max. power/current: 22000 W / 32 A
• Measurement accuracy: ±1% (kWh) to EN 62 053-21
• Management/display: TFT, managed unit with network protocol support
• Programmable functions: startup behaviour, switching logic, time-based control
• Alarm features: adjustable warning/alarm limits per outlet, electromagnetic buzzer

How to use

Mount the PDU vertically in the rack’s zero-U space or appropriate vertical rail using the tool-free divider kit if installing in a compatible Rittal VX IT/TS IT rack. Connect the input cable to a suitable three-phase CEE supply (16 A or 32 A as required) and populate equipment into the C13 and C19 outlets. Configure network settings and firmware via the management interface and update firmware through the USB port if needed. Program startup and switching behaviour, set individual limit values and alarm parameters, and verify time settings using the internal real-time clock.

Usage recommendations

Ensure the input supply matches the PDU’s rated voltage and current, observe phase colour coding during installation, and set appropriate per-outlet limits to protect connected equipment. Replace the real-time clock battery before end of life if extended buffering is required.