Rittal DK 7979.311 PDU - Energy measurement per phase
Part Number: 7979311
Manufacturer
Rittal
Part number
7979311
Category
Alt Part Number
DK 7979.311
Quick Summary
Rittal DK 7979.311 PDU provides high-end power distribution for IT racks with per-phase energy measurement and an integrated network interface. Many engineers struggle to obtain real-time visibility into how loads split across phase conductors, leading to overloading or inefficient cooling. This PDU addresses that challenge with accurate per-phase metering, switchable outputs, and a responsive web server for remote management. It complies with CE-marked EMC Directive 2014/30/EU and EN 62368-1 safety standards, ensuring robust compliance in data centers. In addition to core protection, the compact form factor and zero-U mounting support streamline rack installations, while PoE-enabled monitoring and modular options help keep facilities scalable and cost-efficient. The product supports IT infrastructure management, energy accounting, and proactive operations.
Product Information
Extended Description
7979311 Rittal: DK PDU switched, compact basic power distribution incl. energy measurement per phase, individually switchable output slots, with network interface and display, WLD: 44x1095x70mm, CEE 7/3: 10x earthing earthing pin
Article number
DK 7979.311
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: 1,095 mm
No. of sockets and type
10 x earthing-pin (type F, CEE 7/3)
Rated operating voltage
230 V (AC)
Rated current (max.)
16 A
Power consumption
3.7 kW
Infeeds
Phases per infeed: 1~
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)
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: ≥ 1,200 mm | Enclosure type: VX IT 19" mounting angles: ≥ 1,800 mm
Packs of
1 pc(s).
Weight/pack
4 kg
Customs tariff number
85369095
EAN
4028177947863
ETIM 9
EC002762
ETIM 8
EC002762
ECLASS 8.0
27142604
Product description
DK PDU switched, compact basic power distribution incl. energy measurement per phase, individually switchable output slots, with network interface and display, WLD: 44x1095x70mm, CEE 7/3: 10x earthing earthing pin
Feature → Business Impact → Application: Per-phase energy measurement with individually switchable output slots delivers granular load visibility and proactive protection, reducing overload risk and enabling precise energy accounting for data centers and lab racks. Application: IT rack deployments where balanced phase currents are critical for cooling efficiency and equipment longevity. Feature → Business Impact → Application: Fully redundant Ethernet interface with 10/100/1000 Mbit/s and PoE support boosts uptime and simplifies remote monitoring, lowering on-site visits and maintenance costs in distributed IT environments. Application: Large-scale server rooms requiring high-availability monitoring. Feature → Business Impact → Application: Rotatable 180° display and replaceable controller unit enable faster commissioning and easier field servicing, lowering maintenance time and total cost of ownership. Application: Dense IT racks with limited service access. Feature → Business Impact → Application: Durable aluminium construction with black anodised finish and plastic slots provides robust resistance to heat, dust, and vibration, extending service life in data centers and telecom rooms. Application: Industrial-grade rack environments. Feature → Business Impact → Application: Options including Type 3 overvoltage protection with interchangeable arresters, residual current measurement, CAN bus sensors, and color variants support enhanced risk management and environment monitoring. Application: Systems requiring protective coordination and ambient sensing. Feature → Business Impact → Application: Advanced protocols and web server access (HTTP/HTTPS/SSL, SSH, Telnet, NTP) enable secure integration with existing ITSM and monitoring platforms. Application: Networked infrastructure management. The combination of compact form factor, per-phase metering, and rich connectivity makes this PDU a scalable, compliant solution for modern IT racks, data centers, and edge deployments.
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FAQs
Install the DK 7979.311 PDU as a vertical unit using the zero-U mounting option in VX IT racks. It measures 44 mm wide and 1,095 mm long with a 3 m connection cable and 10 CEE/Type F sockets. Ensure service access for the rotatable display and verify compatibility with VX IT enclosure frames rated at ≥1,200 mm and ≥1,800 mm.
The PDU operates at 230 V AC with a maximum current of 16 A and a power rating of 3.7 kW. It features 10 output slots, per-phase energy measurement, a 3 m connection cable, and a fully redundant Ethernet interface (2x RJ45, 1x PoE). It supports a rotatable display and a replaceable controller unit for maintenance efficiency.
Yes. The DK 7979.311 complies with EMC Directive 2014/30/EU and EN 62368-1 safety standards, ensuring CE marking and reliable operation in data centers and industrial IT environments. These standards support robust electromagnetic compatibility and modern safety requirements for networked power distribution equipment.
The PDU provides a web server with HTTP, HTTPS, SSL support, plus SSH, Telnet, and NTP protocols for time synchronization. It offers fully redundant Ethernet connectivity (two RJ45 ports with one PoE) for reliable remote management and integration with monitoring systems and ITSM workflows.
Per-phase energy measurement enables precise energy accounting and efficiency analytics, reducing waste and cooling costs. Remote management via PoE and redundant networking lowers field service visits and downtime. The compact zero-U mounting and modular options support scalable data-center expansion with predictable maintenance and improved asset utilization.