Power distribution unit Rittal 7979.537 PDU 30 AC outlets (24×C13, 6×C19) 32A 400V 3 m cable Black

The Rittal 7979.537 PDU is a rack-mounted power distribution unit designed for professional IT environments. It provides 30 AC outlets (24×C13 and 6×C19), supports a 32 A input at 400 V three-phase and comes with a 3 m supply cable. The unit integrates network management protocols for remote monitoring and control, and offers per-outlet energy measurement and configurable alarm thresholds for precise power management in data centers, server racks and network cabinets.

Advantages

This PDU offers individual output measurement with accuracy to ±1% (kWh) for reliable energy monitoring and billing. It supports standard network interfaces and protocols (HTTP/HTTPS, SSH, Telnet, SNMP v1/v2c/v3, DHCP, DNS, NTP) enabling integration into existing management systems. The device is optimized for vertical rack mounting, fits zero-U space in compatible racks without tools, and includes phase colour coding and a tool-free divider kit for simplified installation and cable management. Built-in features such as an internal real-time clock with buffered battery, an electromagnetic buzzer for alarms and adjustable per-outlet limit values improve operational control and fault notification.

Suitable for

• Data centers and server rooms requiring detailed energy monitoring and reporting
• Network cabinets and IT racks where space-efficient vertical mounting is needed
• Environments needing per-outlet measurement and configurable alarm thresholds
• Managed IT infrastructures that use SNMP, SSH or HTTPS for remote monitoring

When it may not be suitable

This PDU is intended for three-phase 32 A 400 V installations; it is not suitable for single-phase applications or environments with lower-rated supply requirements without appropriate power distribution arrangements. It is designed for rack-mounted IT equipment and may be excessive for simple home or small-office setups that do not require networked monitoring or per-outlet measurement.

Key specifications

• Output sockets: 24 × C13 and 6 × C19
• Nominal input: 32 A at 400 V, three-phase
• Supply cable length: 3 m
• Maximum power capacity: 22,000 W
• Measurement accuracy: ±1% (kWh) to EN 62053-21
• Network management: HTTP/HTTPS, SSH, Telnet, SNMP v1/v2c/v3, DHCP, DNS, NTP
• Mounting: vertical rack mounting, zero-U compatible for supported rack models
• Phase identification: colour coding for phases and fuse circuits
• Alarm features: adjustable warning/alarm thresholds per outlet and integral electromagnetic buzzer
• Clock: internal real-time clock with replaceable buffered battery (up to 10 years buffering)

How to use

Mount the PDU vertically in a compatible IT rack, using the zero-U space where supported or appropriate mounting points. Connect the supply cable to a suitable three-phase 32 A 400 V supply. Access the device management interface via network protocols (HTTP/HTTPS, SSH, Telnet or SNMP) to configure network settings, per-outlet measurements, thresholds and alarm parameters. Use the colour-coded phase indicators and the tool-free divider kit to organise cabling and avoid phase mix-ups. Monitor consumption and alarm events through the chosen management platform and review logged measurements with the unit’s real-time clock for accurate time-stamped data.

What to consider before purchase

• Ensure your facility has a compatible three-phase 32 A 400 V supply and appropriate circuit protection
• Verify rack compatibility for vertical zero-U mounting with your rack model
• Confirm that 24 C13 and 6 C19 outlets match the plug types of the equipment to be powered
• Plan network access and management integration (SNMP, HTTP/HTTPS, SSH) for remote monitoring
• Assess whether per-outlet metering and alarm features are required for your operational needs

Usage recommendations

For reliable operation, install the PDU in a grounded rack with appropriate circuit protection and monitor individual outlet consumption to balance loads across phases. Regularly check and replace the real-time clock battery per maintenance schedules and configure alarm thresholds to reflect actual device tolerances and capacity limits.