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DK7859.420 Rittal measurement modules with CAN bus for PSM busbars
Rittal DK7859.420 PSM measurement module with CAN bus for PSM busbars providing energy measurement and switching functionality for data centre power distribution systems.
£608.82
Why Choose the Rittal DK7859.420 PSM Measurement Module with CAN Bus?
The Rittal DK7859.420 is an intelligent PSM measurement module with CAN bus designed to add energy measurement and switching functionality to Rittal PSM busbar systems. It enables precise monitoring of rack-level power consumption while providing remote control of connected IT equipment in professional data centre and network cabinet environments.
As part of the Rittal Power System Module (PSM) range, the DK7859.420 is designed for straightforward plug-and-play integration into existing or new PSM installations. The module connects directly to Rittal CMC III monitoring systems via CAN bus communication, allowing centralised monitoring, alarm management and energy analysis.
Featuring 2 x IEC 60320 C13 and 4 x IEC 60320 C19 output sockets, the DK7859.420 provides flexible rack power distribution with integrated measurement functions. Its compact design occupies two PSM busbar module slots and supports efficient power management in modern IT infrastructure applications.
Key Advantages
- Integrated power measurement and switching functionality for Rittal PSM busbar systems.
- CAN bus communication enables direct connection to Rittal CMC III monitoring platforms.
- Plug-and-play installation allows fitting and removal while the system remains operational.
- Mixed IEC 60320 C13 and C19 socket configuration supports versatile rack equipment connections.
- Local LC display provides immediate visibility of electrical measurements and alarms.
- Helps improve energy monitoring and efficiency management in data centre environments.
Key Features
- Rittal PSM measurement module with CAN bus.
- 2 x IEC 60320 C13 and 4 x IEC 60320 C19 output sockets.
- Energy measurement and output switching via CMC III.
- Two CAN bus interfaces for CMC III connection.
- Backlit LC matrix display with multi-colour status indication.
- Configurable limits for voltage, current and active power.
- Configurable overload detection and alarm signalling.
- Measurement accuracy of approximately ±1%.
- Bistable dual-coil relay switching technology.
Advanced Power Monitoring for Data Centre Infrastructure
The Rittal DK7859.420 provides detailed rack-level energy visibility by measuring important electrical parameters and enabling remote switching of connected equipment. When integrated with the CMC III system, operators can monitor power usage, configure thresholds and receive alarms for improved infrastructure management.
Designed for high-performance IT environments, the PSM measurement module combines reliable power distribution with intelligent monitoring capabilities. Its flexible socket arrangement, compact dimensions and CAN bus connectivity make it suitable for enterprise data centres, server cabinets and network installations.
Typical Applications
- Data centre server cabinets and IT racks.
- Network infrastructure power distribution.
- Rittal PSM busbar systems.
- Rack-level energy monitoring installations.
- Remote power switching applications.
- Enterprise and industrial data centre environments.
Technical Specifications
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| Material | Aluminium | |
|---|---|---|
| Manufacturer | Rittal | |
| Series | Power System Module (PSM) | |
| Model | DK7859.420 | |
| Product type | PSM measurement module with CAN bus | |
| Application | Modular rack power distribution and energy monitoring | |
| Protection rating | IP20 | |
| Output sockets | 2 x IEC 60320 C13 and 4 x IEC 60320 C19 | |
| Required module slots | 2 PSM busbar slots | |
| Input voltage | 207–250 V AC | |
| Rated current | 16 A | |
| Maximum distribution output per module | 3,680 W | |
| Switching load per relay | 4,000 VA | |
| Communication interface | 2 x CAN bus interfaces to CMC III | |
| Additional interfaces | 2 x RJ45 sockets for CMC III connection | |
| Relay type | Dual coil bistable relay | |
| Measurement functions | Voltage, current, frequency, active power, active energy, reactive power, reactive energy, apparent power, apparent energy, power factor and crest factor | |
| Measurement accuracy | ±1% | |
| Dimensions (W × D × L) | 53 × 45 × 500 mm | |
| Operating temperature range | 5 °C to 60 °C |
Frequently Asked Questions
What is the Rittal DK7859.420 used for?
The DK7859.420 is a PSM measurement module used to monitor energy consumption and provide switching control for equipment connected to Rittal PSM busbar systems.
How does the DK7859.420 connect to monitoring systems?
The module connects to Rittal CMC III monitoring systems using CAN bus communication.
What socket configuration does this module provide?
The DK7859.420 provides 2 x IEC 60320 C13 and 4 x IEC 60320 C19 sockets for rack equipment connections.
What electrical values can the module measure?
The module measures parameters including voltage, current, frequency, power, energy consumption, power factor and related electrical values.
Where is the Rittal DK7859.420 installed?
The module is installed in Rittal PSM busbar systems used in server cabinets, network racks and data centre power distribution applications.
Trusted by Data Centre Professionals Worldwide
Rittal PSM measurement modules deliver intelligent rack power monitoring, reliable switching control and seamless integration with modern data centre management systems.
