Rittal DK 7979.439 PDU - Energy Monitoring & 12x C13/C19
Part Number: 7979439
Manufacturer
Rittal
Part number
7979439
Category
Alt Part Number
DK 7979.439
Quick Summary
Rittal DK 7979.439 PDU is a high-end power distribution unit with energy measurement for IT and data-center racks. It delivers per-output monitoring, a web interface, and remote control to optimize uptime and energy costs. The typical challenge is gaining visibility into power use across many outlets while maintaining security and reliability. The unit complies with EMC Directive 2014/30/EU and EN 62368-1, ensuring CE-marked deployments in regulated facilities. With PoE-enabled sensing, a rotatable display, and modular protection options, it scales from single racks to VX IT enclosures. It supports 12 x C13 and 12 x C19 outlets fed from 400 V, 32 A, enabling centralized, future-proof rack power management.
Product Information
Extended Description
7979439 Rittal: DK PDU managed, high-end power distribution incl. energy measurement, switching and monitoring functions per output slot, with network interface and display, WLD: 44x1695x70 mm, IEC 60 320: 12x C13 + 12x C19
Article number
DK 7979.439
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: 1,695 mm
No. of sockets and type
12 x C13 / 12 x C19
Sockets
12 x C 13 | 12 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: ≥ 1,800 mm | Enclosure type: VX IT 19" mounting angles: ≥ 2,000 mm
Packs of
1 pc(s).
Weight/pack
7.4 kg
Customs tariff number
85366990
EAN
4028177948235
ETIM 9
EC002762
ETIM 8
EC002762
ECLASS 8.0
27142604
Product description
DK PDU managed, high-end power distribution incl. energy measurement, switching and monitoring functions per output slot, with network interface and display, WLD: 44x1695x70 mm, IEC 60 320: 12x C13 + 12x C19
Feature: Energy measurement and monitoring per output slot with a rotatable display. Business impact: precise energy accounting and quick fault isolation across every outlet, enabling accurate chargebacks and reduced energy waste. Application: IT and data-center racks where load balancing and power budgeting are critical. Feature: Fully redundant Ethernet interface with PoE and a robust web server. Business impact: reliable remote management and seamless sensor integration across multiple PDUs. Application: centralized monitoring for large-scale rack deployments. Feature: 12x C13 / 12x C19 outlets with 400 V AC input and 3-phase infeed. Business impact: scalable power provisioning for mixed IT loads, reducing the need for additional PDUs. Application: growing data centers and VX IT installations. Feature: Security and access options including HTTP/HTTPS/SSL protocols and NTP. Business impact: secure, time-synchronized operations, reducing risk of configuration drift. Application: compliant environments requiring strict data integrity. Feature: Optional overvoltage protection, residual current measurement (type B), and CAN sensor support. Business impact: enhanced safety and ambient monitoring with minimal retrofit cost. Application: regulated facilities needing proactive protection and environmental awareness. Feature: Compact form factor with mounting compatibility for VX IT enclosures. Business impact: simplified deployment and tool-free installation in zero-U spaces. Application: IT racks and server rooms with limited mounting space.
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FAQs
The DK 7979.439 PDU is designed for VX IT frames and can be attached in the zero-U space of the rack with no tools. Use the 3 m CEE input cable to connect to a 400 V supply and align the rotatable display during installation. Its weight of 7.4 kg allows single-person handling, while maintaining secure mounting and future-proof power distribution.
Yes. The PDU supports 400 V AC input with a maximum of 32 A across a 3-phase infeed. It provides 12 x C13 and 12 x C19 outputs, and it is intended for IT rack environments, including VX IT enclosures. Infeed specifications, mounting compatibility, and enclosure fit are designed to streamline deployment in data centers and server rooms.
The PDU includes per-output energy measurement and monitoring, a web server for remote management, and the ability to sequentially disconnect outputs if needed. It also supports ambient monitoring via optional CAN sensors and can monitor infeed protection alongside residual current monitoring for enhanced safety and governance in critical IT environments.
This PDU adheres to EMC Directive 2014/30/EU and EN 62368-1, supporting CE marking for regulated facilities. It also offers a secure management interface (HTTP/HTTPS/SSL) and NTP synchronization, ensuring compliant, auditable operation in enterprise IT and data-center settings.
The PDU enables continuous energy visibility and remote monitoring, reducing downtime and energy waste. By supporting chargeback workflows and centralized management, it lowers operational costs, simplifies maintenance, and improves compliance with safety and energy-usage regulations—delivering a rapid return on investment in mature IT infrastructures.