Rittal 7979237 Power PDU - per-phase energy measurement
Part Number: 7979237
Manufacturer
Rittal
Part number
7979237
Category
Alt Part Number
DK 7979.237
Quick Summary
Rittal 7979237 Power PDU metered provides per-phase energy measurement for IT racks, enabling precise energy transparency across the data center. Too often, power distribution hides inefficiencies behind aggregate load figures, making it hard to identify hotspots or justify energy-related capex. This unit complies with EMC Directive 2014/30/EU and EN 62368-1, with CE marking, and offers optional Type 3 overvoltage protection and CAN-bus ambient sensors for enhanced safety and reliability. For IT managers, the combination of per-phase energy data, VX IT rack compatibility, and simple web-based configuration delivers measurable efficiency gains and streamlined compliance reporting. Use cases include server rooms, data centers, and high-density IT infrastructure where energy visibility drives cost savings and capacity planning.
Product Information
Extended Description
7979237 Rittal: DK PDU metered, compact basic power distribution incl. energy measurement per phase, with network interface and display, WLD: 44x1740x70 mm, IEC 60 320: 24 x C 13 + 6 x C 19
Article number
DK 7979.237
Product description
High-end power distribution in a compact design for IT network and server racks. With 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
Measurement per phase or infeed
Dimensions
Width: 44 mm | Depth: 70 mm | Length: 1,740 mm
No. of sockets and type
24 x C13 / 6 x C19
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
USB 2.0 port (USB-A) for mass configuration, firmware updates & data logging
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
6.3 kg
Customs tariff number
85366990
EAN
4028177947771
ETIM 8
EC002762
ETIM 7.0
EC000330
ECLASS 8.0
27142604
Product description
DK PDU metered, compact basic power distribution incl. energy measurement per phase, with network interface and display, WLD: 44x1740x70 mm, IEC 60 320: 24 x C 13 + 6 x C 19
Feature: Metered power distribution with energy measurement per phase and a network interface. Business Impact: Enables energy transparency, accurate chargeback, and load balancing insights, reducing operational costs. Application: IT racks and data centers needing per-phase monitoring. Feature: Compact 44x1740x70 mm enclosure designed for zero-U mounting in VX IT racks. Business Impact: Maximizes rack space, simplifies installation, and supports scalable deployments. Application: Vertical mounting in VX IT frames for high-density configurations. Feature: Integrated display with rotatable 180° controller and replaceable unit. Business Impact: Easy on-site service, quick firmware updates, and long-term maintainability. Application: Field installations with minimal downtime. Feature: Network and USB interfaces including HTTP/HTTPS/SSL, SSH, Telnet, NTP, and USB 2.0 for mass configuration and data logging. Business Impact: Remote management, bulk deployments, and secure data collection. Application: Large IT estates requiring centralized monitoring. Feature: Optional Type 3 overvoltage protection, residual current measurement (type B), and CAN bus ambient sensors. Business Impact: Strengthened protection, regulatory compliance, and environmental monitoring. Application: Data centers with strict uptime and safety requirements. Feature: Enclosure compatibility and mounting options for VX IT frames (≥ 2000 mm). Business Impact: Predictable integration with Rittal ecosystem, lowering integration risk. Application: Standardized IT rack environments across facilities.
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FAQs
The DK 7979.237 PDU metered is designed for VX IT frames and can be mounted in zero-U spaces, enabling tool-free integration where space is at a premium. It fits VX IT enclosure frames of sufficient length (≥ 2000 mm) and 19 inch mounting assemblies, simplifying retrofits and scalable deployments.
The unit operates at 400 V AC with a maximum of 32 A per infeed. It measures energy per phase or infeed, supports a 3-phase input, and has a 3 m connection cable, enabling accurate load profiling and phase balancing across IT racks.
Yes. The PDU includes a web server interface (HTTP/HTTPS/SSL) and SSH/Telnet for remote access, plus a USB 2.0 port for mass configuration, firmware updates, and data logging, making large-scale deployments straightforward.
The unit complies with EMC Directive 2014/30/EU and EN 62368-1, aligning with CE marking requirements for safety and electromagnetic compatibility, which supports regulatory compliance in European data centers.
By delivering per-phase energy data, per-rack monitoring, and remote management, the PDU enables precise energy accounting, reduces overload risk, and lowers operational costs through informed capacity planning and proactive maintenance.