Data center monitoring solutions



We know how to do it: find out how




We know how to do it: find out how




We know how to do it: find out how





Data centers are not all the same. Carlo Gavazzi has designed specific solutions based on the different characteristics of each data center.



In most cases, these installations are unlikely to have enough space to suit the classic monitoring systems so Carlo Gavazzi has designed a solution which can be easily installed.


Production facilities

Often, these are retrofit installations; by monitoring both regular loads and the consumption of the Server rack, Carlo Gavazzi’s solution will guarantee a suitable integrated system.


Big data

These can be either existing or new plants; in both cases, Carlo Gavazzi has designed a workable monitoring solution, whether the installation is based on a PDU (Power Distribution Unit) or TOB (Tap Off Boxes).


Data centers, a battle between growth and efficiency

As the world becomes increasingly digitized, information and communications, technology is emerging as an important source of electricity demand. Billions devices and machines are already connected, and more will be connected over the coming years, using electricity directly and fuelling growth in demand for data center and transmission network services.
Electricity demand in the world’s data centers in 2019 amounted to 200 TWh, about 1% of the global electricity demand. While IP traffic and workloads are projected to triple in near terms, global data center electricity demand is expected to remain flat up to 2022 based on efficiency trends, see the graph on the right.
The strong growth in demand for data center services is offset by continued improvements to servers, storage devices, network switches and data center infrastructure as well as a shift to much larger shares of highly efficient cloud and hyper-scale data centers supported by the use of artificial intelligence and machine learning that will reduce the energy intensity of data center services even more.

5 good reasons to have a critical power & data center monitoring solution

  1. because it is an energy-intensive user (usually more than 20MW for large data centers);
  2. because it has to provide 99.9% up-time (equivalent to 364.3 uptime days);
  3. because the most overlooked elements are power utilization, consumption and monitoring;
  4. because making the right decisions can improve server health and data center efficiency;
  5. because you can’t effectively manage something you can’t monitor. The only way to run a properly optimized data center is to have a solid monitoring platform designed for your environment.

Avoid unplanned downtime costs

According to a survey made in the USA (the largest data center market) by the Ponemon Institute, the average cost per minute of unplanned data center downtime is 5,900 USD. A significant cost which can be avoided using a proper monitoring solution. The data center industry is using different technical solutions and installation technologies, depending on the number of servers, where the most important goal is always, directly or indirectly, the streamlining of costs and the maximizing of savings. The following list shows you the different individual or combined approaches:

  1. the “prefabricated modular data center” where the aim is the short deployment timeframe and improved predictability of performance;
  2. the DCIM “Data Center Infrastructure Management” where the set of tools that help to organise and manage the infrastructure and the PUE (Power Usage Effectiveness) is a measure of how efficiently a data center uses energy;
  3. the “green data center” where the maximum energy efficiency and minimum environmental impact is the goal.

Analyze data and act

Our civilization has evolved thanks to the analytical thinking that has permitted us to find new and effective solutions. Carlo Gavazzi has created a suite of hardware and software tools which allows you to thoroughly monitor load consumption. The result of which is the safeguarding of energy efficiency and continuous cost saving.

Integrate with existing meters

The utility meters are valuable unexplored information sources that are frequently unavailable.
Previously installed pulse output-based meters can still to be part of a data collection system!

Cut commissioning time and costs

Time is an increasingly valuable asset. Carlo Gavazzi is well aware of that and for this reason all the solutions offered are practical and easy to install. The solutions, detailed in the links below, allow you to save up to 94% on your commissioning time and costs.

Server monitoring in banks

In most cases these are installations with limited space for fitting a proper monitoring system. Our solution includes the EM270 and EM280 Quick-fit meters and, where necessary, the TCD1X-2X-3X and TCD06BX-BS current transformers.

EM270 Quick-fit 3-phase energy analyzer

EM280 Quick-fit 3-phase energy analyzer

TCD1X-2X-3X 3-phase current transformers

TCD06BX - TCD06BS Multiple current transformer block

Server monitoring in production facilities

In most cases these are retrofit installations, where it is necessary to install a reliable monitoring system to manage a combination of regular loads and servers. The flexibility needed is guaranteed by our EM210 and EM271 meters, combined with CTV/ROG and TCD-xM sensing solutions.

EM210 3-phase energy analyzer

EM271 Quick-fit 3-phase energy analyzer

CTV Current transformers

ROG4K Current sensor based-on Rogowski coil

TCD 0M-1M-2M-3M-MM Multiple miniature split-core current sensors



A 94% commissioning time saving

Traditional tap-off box solution: the first configuration, the following addressing and the final commissioning in case of 16 bus-bar trunking systems of 32 tap-off boxes each (total more than 2 hours) is about a total of 34 hours of Professionals work.
ET272 + VMU-C tap-off box solution: no manual configuration, no ID addressing, a general process improvement. Leading to a total configuration and commissioning time reduction from 34 hours of Professionals work to only 2 hours!

Panel builder Production Quick tap-off box assembly and ID label sticking on the tap-off box. Quick connections and the split-core current sensors of ET272 (see next page).
Installer Data Center Affixing the ID labels to the installation document, and tap-off box installation on the bus-bar. Easy identification of the tap-off box in order to minimizing positioning errors
System integrator Data Center ID labels installation document barcode reading. Full automated commissioning thanks the Embedded VMU-C tools.


Power busbar-based monitoring in Data centers

Electrical installations in big data centers are built according to different guidelines: either bus-bar trunking systems (bus-ducts with tap off boxes) or power distribution units can be used. Carlo Gavazzi has a solution in both cases, with the purpose of dramatically saving set-up time and costs, providing data with the necessary granularity.
In case of existing or new installation based on power bus-bar trunking systems (busduct), the solution is the combination of ET272 quick-fit analyzer combined with the VMUC EM Web-Server/Gateway.

94% commissioning time SAVING
PDU-based monitoring in Data centers

When the electrical system is different from a busbar trunking or busduct system and feeding numerous loads into a common distribution board, the WM50-96 is the ideal solution for branch circuit monitoring. The solution is based on a one core unit, the WM50 which is usually installed and connected to the mains and some TCD12 units as combined meters installed downstream from the MCBs for single phase or three-phase loads. As the whole installation cost is not only made up of the component costs but also the installation and commissioning costs, this innovative solution allows you to achieve more than 75% installation and commissioning savings compared to a regular solution.

75% installation time SAVING
Server monitoring in Data centers
Ultra flexible solution for regular PDU-based server systems

WM15, displaying measured variables in both analogue and digital formats and ET340, a metering unit without display are the ideal metering solution for server rooms in Banks, production facilities and Data Centers. This solution provides the following benefits: configuration and commissioning with the same advanced OptoProg and UCS tools saving time and being more effective; all ET340 units can be daisy chained using an RJ45 cable being more reliable in connections and cutting connection costs; a single ET340 has the same footprint of three single-phase MCBs or a three-phase MCB, this means a modularity of three and therefore the capability to be mounted wherever there is a limited space or there is the need to put them in an array of many MCBs; UWP 3.0 being key part of the whole metering system can manage, using a proper RJ45 cable, up to 100 ET340 units equivalent to 300 server or server racks, a massive number of information.

Ultra flexible solution for full DIN-rail based PDUs

If the target is to provide a streamlined solution for server rooms in banks and production facilities, than the solution is EM24 + ET340. Streamlining a monitoring solution for banks and facilities means, to be more cost effective in providing solutions capable to perform not only main and submetering but also being able to gather data from utility meters. For EM24, it doesn’t matter if the pulse signals are coming from watt-hour meters, gas meters, water meters or from all of them, because it has all the necessary hardware resources to manage all those signals. So, if EM24 has the task to perform, in the installation, the integration of the utility meters into the UWP 3.0 monitoring platform, it has in addition, also the task to perform the main metering in the distribution board where it is installed. While the ET340 units have the task to measure a full set of electrical variables being needed to complete the analysis of all loads connected downstream the main MCB or MCCB.

Utility, main and sub meter integration

If utility meters are M-Bus (EN13757) wired or wireless based, then the SIU-MBC can be used as a dual pulse counter or directly via the SIU-MBM which acts as a gateway. These add-on solutions make this valuable information available for your Automatic Energy Monitoring System. More specifically: if the utility meter has only a pulse output, no available auxiliary power supply and the meter itself is far from you nearest distribution board than the solution is the wireless SIU-MBC, it is self-powered by an internal battery lasting up to 12 years, and is perfectly suited to outdoor applications; if the utility meter is wired or wireless M-Bus-based, than the solution is SIU-MBM.


In many installations, old fashioned meters are still working properly but energy information is still collected manually with both high data collection costs and potential transcription errors. Now, concentrating on multiple meters' pulse outputs and making them available as RS485 Modbus counters is possible, thanks to the modular VMU-MC + VMU-OC solution ranging from 2 to 11 pulse inputs (counters). Pulse to Modbus conversion is the key to automatic data collection benefiting from quality data, data granularity and whole data management.

Explore and analyse data

UWP 3.0 is a core unit capable to collect data from meters and other sensing devices suitable to be used to monitor critical loads.
UWP 3.0 is key to meet today's Energy Managers and Energy Service Companies requirements to achieve energy efficiency goals, but also to monitor the behaviour of critical loads such as dry coolers, air cooled chillers and servers in data Centers. It can provide, as a first step, all the remote, on-premise, or cloud functionalities. Simple architecture, short commissioning time, cost reductions, error proof configuration, expandability and scalability are the distinctive characteristics of this unit. UWP 3.0 is a Web-Server but also a gateway. UWP 3.0 is Microsoft® certified for IoT. One or many UWP 3.0 pushing their data to the Microsoft® Azure IoT Hub will allow System Integrators to extend the level of integration to other systems. Data can be shared locally via Modbus/TCP or BACnet, while M2M makes integration with other systems possible via Rest-API or standard FTP, SFTP, FTPS communication. Excel® reports can be generated online or via the embedded scheduler.

UWP 3.0 Universal Web Platform

MRCD type installation protection devices

To avoid trips in protection and maintain the availability of the power supply, our MRCDs DEA71 and DEB71, combined with the CTG core balance transformer, are our IEC60947-2 compliant solutions for detecting earth leakage currents.

DEA71 Earth leakage protection relays

DEB71 Earth leakage protection relays

CTG Core balance transformers





Servers and data centers protection and monitoring solutions

UCS Mobile

APP to set-up analyzers (WM20, WM30, WM40, WM50), to manage the relevant configurations’ archive, to execute real-time diagnostic through an Android smartphone

UCS Desktop

PC software to create, manage and verify the configurations of any Carlo Gavazzi’s meter or analyzer

May 2018

Our Products


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May 2018

Our Switch


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May 2018

Our Gateway


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PC software to create, manage and verify the configurations of any Carlo Gavazzi’s meter or analyzer


Our Products Manual


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Our Switch Manual


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Our Gateway Manual


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