Rittal DK PDU 7979440 Power Distribution Unit - Energy Meas.
Part Number: 7979440
Manufacturer
Rittal
Part number
7979440
Category
Alt Part Number
DK 7979.440
Quick Summary
Rittal PDU 7979440 delivers high-end IT rack power distribution with energy measurement across each output slot, ideal for data centers and server rooms. It addresses visibility gaps and unplanned downtime by providing per-slot energy data, remote control, and web-based management. CE-compliant under EMC Directive 2014/30/EU and EN 62368-1 safety standards, this solution supports robust regulatory alignment. The combination of energy management capabilities and scalable network-based control translates into lower operating costs, improved compliance reporting, and stronger IT power visibility for business-critical environments.
Product Information
Extended Description
7979440 Rittal: DK PDU managed, high-end power distribution incl. energy measurement, switching and monitoring functions per output slot, with network interface and display, WLD: 44x1895x70 mm, IEC 60 320: 36x C13 + 6x C19
Article number
DK 7979.440
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: 1,895 mm
No. of sockets and type
36 x C13 / 6 x C19
Sockets
36 x C 13 | 6 x C 19
Rated operating voltage
400 V (AC)
Rated current (max.)
16 A
Power consumption
11 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)
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: ≥ 2,200 mm
Packs of
1 pc(s).
Weight/pack
6.82 kg
Customs tariff number
85369095
EAN
4028177948242
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: 44x1895x70 mm, IEC 60 320: 36x C13 + 6x C19
Feature: Per-output energy measurement and monitoring. Business Impact: Enables granular energy visibility, cost attribution, and informed capacity planning for IT loads. Application: Ideal for server racks and VX IT enclosures in data centers. The result is precise energy accounting and proactive capacity management. Feature: Rotatable display and PoE-enabled web server. Business Impact: Simplifies on-site diagnostics and minimizes maintenance visits by enabling remote monitoring and configuration via a web interface. Application: Data centers and server rooms where quick remote access reduces mean time to repair. This supports continuous operation and faster incident response. Feature: 400 V three-phase input with 36x C13 and 6x C19 outputs. Business Impact: Supports large IT loads with flexible outlet arrangements, improving cabinet scalability and future-proofing. Application: IT racks requiring mixed low- and high-power outlets. This reduces wiring complexity and enables orderly cable management.Feature: Fully redundant Ethernet interface with 2x RJ45 and PoE. Business Impact: Delivers resilient network connectivity for remote management and device health monitoring, including power to the PDUs’ own web server. Application: Enterprise racks with critical uptime requirements. This minimizes single-point failures and enhances security posture. Feature: Zero-U mounting compatibility and modular enclosure integration. Business Impact: Maximizes space efficiency in VX IT enclosures and accelerates installation with tool-free or minimal tooling requirements. Application: Narrow IT cabinet deployments where rack footprint is at a premium. This supports faster deployment and easier serviceability. Feature: Optional overvoltage protection, residual current measurement, and CAN bus sensors. Business Impact: Improves safety, compliance, and ambient monitoring for critical environments. Application: Data centers needing enhanced protection and environmental awareness. This reduces risk while enabling scalable monitoring ecosystems.
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FAQs
The DK 7979.440 is designed for flexible integration with VX IT enclosures and supports zero-U mounting in compatible frames. Installation benefits include minimal downtime, tool-free alignment, and clean cable management. Ensure the 3 m input CEE cable reaches a suitable power source and verify space for the 1,895 mm length in the rack footprint.
Each output slot on the PDU provides energy measurement and monitoring data, enabling detailed per-socket visibility. This supports precise energy accounting, load balancing, and targeted efficiency improvements. Data is accessible via the PDU’s web server and can be integrated into existing energy management workflows.
Yes. The PDU supports 400 V AC three-phase supply with a CEE inlet and provides 36 x C13 plus 6 x C19 outlets. It is rated for up to 16 A per infeed, with a 3 m connection cable. This configuration suits modern data centers and server rooms requiring substantial, mixed-load power distribution.
The PDU complies with CE requirements via the EMC Directive 2014/30/EU and adheres to EN 62368-1 safety standards. These certifications verify electromagnetic compatibility and safety, helping you meet regulatory obligations and ensure safe operation within IT environments.
Benefits include reduced energy waste through per-slot monitoring, improved uptime via remote management, and streamlined regulatory reporting. Over time, granular energy data enables accurate capacity planning, lower energy costs, and faster fault resolution, contributing to a favorable return on investment for IT power infrastructure projects.