Rittal DK 7979.334 PDU - Energy measurement per phase
Part Number: 7979334
Manufacturer
Rittal
Part number
7979334
Category
Alt Part Number
DK 7979.334
Quick Summary
The Rittal DK 7979.334 PDU is a high-end IT rack power distribution unit with per‑phase energy measurement designed for data centers and server racks. Many IT environments struggle to identify uneven loads and control outlet power remotely, leading to inefficiencies and risk of overloading. This solution delivers CE conformity under EMC Directive 2014/30/EU, EN 62368-1 safety compliance, and secure network management via HTTP/HTTPS, ensuring robust governance of critical power. With its compact form factor, rotatable display, and optional protections, it enables precise monitoring, rapid fault isolation, and improved energy efficiency for server racks, while leveraging an Ethernet interface for scalable remote management and sensor integration.
Product Information
Extended Description
7979334 Rittal: DK PDU international, switched, compact basic power distribution incl. energy measurement per phase, individually switchable output slots, with network interface and display, WLD: 44x2095x70 mm, CEE 7/3: 24x earthing pin
Article number
DK 7979.334
Product description
High-end power distribution in a compact design for IT network and server racks. With switching function and power measurement at the infeed or per phase.
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: 2,095 mm
No. of sockets and type
24 x earthing-pin (type F, CEE 7/3)
Sockets
24 x earthing-pin
Rated operating voltage
400 V (AC)
Rated current (max.)
32 A
Power consumption
22 kW
Infeeds
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: ≥ 2,200 mm | Enclosure type: VX IT 19" mounting angles: ≥ 2,200 mm
Packs of
1 pc(s).
Customs tariff number
85369095
EAN
4028177947962
ETIM 9
EC002762
ETIM 8
EC002762
ECLASS 8.0
27142604
Product description
DK PDU international, switched, compact basic power distribution incl. energy measurement per phase, individually switchable output slots, with network interface and display, WLD: 44x2095x70 mm, CEE 7/3: 24x earthing pin
Feature: Per-phase energy measurement and individually switchable outputs. Business Impact: Enables precise load balancing, real-time energy accounting, and faster fault isolation to reduce energy waste and downtime. Application: IT racks and data centers where energy visibility drives efficiency. Feature: 3-phase 400 V, 32 A rating with 24x earthing-pin outlets and a 3 m connection cable. Business Impact: Supports dense IT deployments with clean, repeatable power distribution and flexible cabling in VX IT enclosures. Application: Server rooms and VX IT installations requiring scalable power sharing. Feature: Fully redundant Ethernet interface with 2x RJ45 and PoE on one port plus a rotatable display. Business Impact: Enhances remote monitoring, sensor deployment, and secure management for high-availability environments. Application: Infrastructure management of large-scale racks and modular data centers. Feature: Optional Type 3 overvoltage protection with interchangeable arresters and CAN bus ambient sensors. Business Impact: Improves equipment protection, proactive fault detection, and environmental monitoring to meet strict uptime and safety standards. Application: Critical IT deployments needing scalable protection and monitoring. Feature: Compact dimensions (W 44 x D 70 x L 2,095 mm) with zero-U mounting compatibility for VX IT frames. Business Impact: Saves rack space, simplifies installation, and reduces site labor costs. Application: Vertically mounted PDU solutions in VX IT enclosures. Feature: Energy measuring at the infeed or per phase, PoE-enabled web server for management, and sequential disconnection of outputs. Business Impact: Provides continuous power visibility, secure governance, and controlled shutdowns to minimize risk and downtime. Application: IT network and server rack environments requiring robust power management.
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FAQs
Install the DK 7979.334 PDU in VX IT frames designed for zero-U mounting; ensure the enclosure length is at least 2,200 mm as specified for VX IT. Use the 3 m connection cable to reach the main power feed and connect to a 400 V 3‑phase supply. The PDU’s compact 44 mm width fits narrow rack spaces, while maintaining access to each outlet for servicing.
Energy is measured per phase within the PDU, with a web server interface for live data access. Data is retrievable via HTTP/HTTPS with SSL, allowing secure monitoring from any approved device. Use the dual RJ45 Ethernet ports for a redundant connection and access the measurement values in the management interface or via compatible sensor integrations.
Yes. The DK 7979.334 supports Type 3 overvoltage protection with interchangeable arresters while operational, plus monitoring options for ambient conditions via CMC III CAN bus sensors. This enables integrated protection and environmental awareness, aligning with data center safety and uptime requirements and allowing scalable sensor networks.
The unit operates at 400 V AC with a maximum 32 A rating and uses 24 x earthing-pin sockets (type F, CEE 7/3). It ships with a 3 m connection lead and CEE-type input. Suitable for 400 V three‑phase grids common in modern data centers, it provides robust power distribution while maintaining safe, standardized connections.
ROI comes from reduced energy waste via per‑phase measurement, improved rack balance, and faster fault isolation thanks to remote monitoring and out-of-band management. The PoE-enabled web server enables ongoing optimization without manual reads, while sequential disconnection of outputs minimizes unplanned downtime and protects critical IT assets.