Rittal DK 7979.437 PDU - energy measurement, EN 62368-1
Part Number: 7979437
Manufacturer
Rittal
Part number
7979437
Category
Alt Part Number
DK 7979.437
Quick Summary
Rittal DK 7979.437 PDU is a high-end managed power distribution unit for IT racks. For engineers, lack of visibility into energy use across outlets hampers fault finding and capacity planning. This product complies with EMC Directive 2014/30/EU and EN 62368-1 safety standards, enabling compliant, reliable operation in demanding IT environments. Designed for data centers, server rooms, and VX IT enclosures, it enhances power management and energy monitoring while reducing operating costs. With a rotatable display and web interface, technicians gain real-time visibility and control across all outlets. The unit supports modular IT rack installations with a 3 m input cable and 24 outlets for scalable deployments.
Product Information
Extended Description
7979437 Rittal: DK PDU international, managed, high-end power distribution incl. energy measurement, switching and monitoring functions per output slot, with network interface and display, WLD: 44x1740x70 mm, IEC 60 320: 24x C13 + 6x C19
Article number
DK 7979.437
Product description
High-end power distribution in a compact design for IT network and server racks. Depending on the design, they come with an extensive range of management functions for energy measurement and monitoring.
Benefits
For vertical mounting, it may be attached in the zero-U space of the Rittal VX IT or TS IT rack with no need for tools
Technical specifications
Display/controller unit in the PDU enclosure rotatable through 180° and replaceable
Material
Aluminium section, black anodised | Slots: Plastic
Supply includes
Assembly parts
Options
Type 3 overvoltage protection with interchangeable arresters while operational, with status monitoring, suitable for integration into PDU enclosure | Residual current measurement (type B) per infeed/phase/fuse | Monitoring of the optionally available overvoltage protection | CMC III CAN bus sensors may be connected for ambient monitoring, max. 16 sensors | Other enclosure colours are available
Measurement functions, description
Emergency power supply to PDU web server via PoE, sequential disconnection of the outputs
Dimensions
Width: 44 mm | Depth: 70 mm | Length: 1,740 mm
No. of sockets and type
24 x C13 / 6 x C19
Sockets
24 x C 13 | 6 x C 19
Rated operating voltage
400 V (AC)
Rated current (max.)
32 A
Power consumption
22 kW
Infeeds
Qty.: 1 | Phases per infeed: 3~
Length of connection cable
3 m
Type of electrical connection
CEE
Interfaces
Fully redundant Ethernet interface 10/100/1000 Mbit/s (2x RJ45, 1x with PoE)
Number RJ45 ports for sensor units max
6
Directives
EMC Directive 2014/30/EU
Standards
EN 62368-1
Protocols
Web server (HTTP, HTTPS, SSL) SSH, Telnet, NTP
Operating temperature range
5 °C...50 °C
Ambient humidity (non-condensing)
10...95 %
Storage temperature range
-20 °C...70 °C
To fit
Enclosure type: VX IT enclosure frame: ≥ 2,000 mm | Enclosure type: VX IT 19" mounting angles: ≥ 2,000 mm
Packs of
1 pc(s).
Weight/pack
7.18 kg
Customs tariff number
85366990
EAN
4028177948211
ETIM 8
EC002762
ETIM 7.0
EC000330
ECLASS 8.0
27142604
Product description
DK PDU international, managed, high-end power distribution incl. energy measurement, switching and monitoring functions per output slot, with network interface and display, WLD: 44x1740x70 mm, IEC 60 320: 24x C13 + 6x C19
Energy measurement and per-outlet monitoring enable granular energy accounting, allowing data-center teams to identify high-consumption workloads and optimize cooling and provisioning. This translates to lower energy costs and improved capacity planning for IT racks; use case: server farms with dense virtualization and varied workload profiles. The PDU’s fully integrated web server and PoE-enabled Ethernet interface provide remote visibility and control, reducing on-site maintenance trips and accelerating fault isolation in critical rack environments. With 24x C13 and 6x C19 outlets spanning 400 V AC up to 32 A, it supports high-density IT deployments and simplifies cable management in VX IT enclosures. The rotatable 180° display/controller and replaceable unit design streamline serviceability and minimize downtime during upgrades. Optional Type 3 overvoltage protection, residual current monitoring (type B), and CAN bus ambient sensors help satisfy rigorous facility safety and monitoring requirements. These features support compliance audits and ongoing governance for data centers and enterprise IT rooms. Compatibility with VX IT frames and TS IT mounting angles enables zero-U or near-zero-U mounting for efficient rack utilization, improving space efficiency and installation speed. The PDU’s emergency power-distribution logic and per-slot switching enable controlled power-down sequences to safeguard critical loads during maintenance, reducing risk and unplanned downtime. Overall, this solution delivers measurable reliability, energy transparency, and total-cost-of-ownership reductions for modern IT infrastructures.
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FAQs
The PDU is designed for modular IT rack installations and can be mounted in VX IT frames with zero-U mounting options. It uses a 3 m input cable and provides 24x C13 / 6x C19 outlets in a compact 44 mm by 1,740 mm footprint. For vertical mounting, it can be attached in the zero-U space of the VX IT rack without tools, reducing downtime and labor during deployment.
Per-outlet energy measurement enables precise accounting of power usage at the rack level, supporting chargebacks, efficiency initiatives, and capacity planning. Organizations can identify hot spots, optimize workload placement, and correlate energy use with performance metrics, leading to lower total energy costs and improved thermal management in data centers.
The DK 7979.437 PDU complies with EMC Directive 2014/30/EU and EN 62368-1 safety standards, ensuring reliable operation in regulated IT environments. Its robust environmental specs (5–50 °C, 10–95% RH non-condensing) and modular protection options support ongoing compliance and facility safety requirements.
Yes. The PDU features a fully redundant Ethernet interface (2x RJ45, 1x PoE) and a web server supporting HTTP/HTTPS/SSL, SSH, Telnet, and NTP. This enables real-time monitoring, remote power sequencing, and centralized control for multi-rack environments, reducing on-site visits and speeding troubleshooting.
The DK 7979.437 PDU enables granular energy visibility, fault isolation, and per-outlet control, leading to lower energy consumption and faster maintenance. In dense IT deployments, these capabilities can reduce cooling load, improve uptime, and streamline compliance reporting, delivering a favorable total cost of ownership over typical data-center lifecycles.