The reason of installation protection usage.

In the wide range of protection devices, there is a family of units called RCD Residual Current Device used to prevent injuries. The purpose of an RCD is to prevent threats to life by protecting against the risks of electrocution and fire caused by earth faults.

In industrial and commercial applications, due to their specific requirements, the device used to detect dangerous earth leakage currents is called an MRCD Modular Residual Current Device. More specifically, it is an earth leakage current relay which can detect by means of an external core balance transformer the earth leakage current.

Both RCDs and MRCDs are prone to nuisance trips from normal harmless earth leakage. Those are due to external factors, such as a high current discharge due to lightning or to an earth rod placed close to a neighbouring earth rod on a building. A nuisance trip would affect the availability of power supply, which for example in a production facility, because of its nature, is not allowed.

Gateways and meters to be used in existing installations M-bus-based:

• SIU-MBC: pulse counter for utility meters with only a pulse output, no available power supply, and far from your nearest distribution board, in particular for outdoor applications.
• SIU-MBM: work as a gateway for a SIU-MBC or as a meter if the utility meter is wired or wireless M-Bus-based. It can also be configured with UCS, the Universal Configuration Software for CG meters and accessories.

EM24 W1, furthermore, is the best solution to collect data up to 65A measuring inputs, transferring them wireless in the faster way available in the market.

Multiple meters’ pulse outputs can be counted and automatically collected, also if they are not thought for digital data transmission.

The conversion of the pulse outputs in RS485 Modbus is the key to ensure quality, granularity and full management of data, if you need faster and safer data collection from old meters.

Thanks to the modular VMU-MC + VMU-OC solution ranging from 2 to 11 pulse inputs it is possible to save old meters which are still working properly.

Identifying areas of energy wastage could be vital to avoid costs and risks. A quick installation, therefore, it’s important to simplify an effective PDCA (plan-do-check-act) process.

This solution is ideal for ESCOs retrofit main activities because it can easily be:

• Removed from a place and re-installed somewhere else
• Installed in a plant where space and communication capabilities may be restricted

This solution:

• condenses the information of four analogue panel meters into a single meter
• provides an accurate measurement of power and energy thanks to the continuous and simultaneous sampling of all phases
• relate the energy consumption to the time the load is operating when it is installed on a distribution board or on a machine
• display locally and transmit automatically and remotely all needed variables to validate the implemented energy efficiency policies or provide data to start a preventive maintenance plan instead, if an alarm is set

Installation and commissioning of advanced panel meters often have additional and hidden costs compared to standard analogue panel meters. WM15 reduces these costs by 50% compared to a standard 4 analogue meters installation and even more versus a standard power analyser installation thanks to its advanced wiring-control algorithm and its improved usability.

From compact sizes to high currents and from solid-core to split-core, these are the current adapters for Carlo Gavazzi meters and the appropriate solution for any kind of installation.

When installation time, meter configuration, and commissioning are a concern, Carlo Gavazzi Quick-fit is the solution. In a typical installation (lighting, HVAC, heating, refrigeration) using 1+4 regular meters you can achieve a time reduction of about 70% using 3 quick-fit meters instead.

This range offers you both CT connection inputs and direct connection capabilities.

The three key features are:

-housing compactness. They can fit wherever you have a minimal space and display data completeness with 0.001 energy resolution

- most important variable information available at a glance

-full electric variables set availability also through the communication port. Capability to know the single load behaviour so to perform a concise analysis

The EM500 series provides also, based on Carlo Gavazzi’s long design and application expertise, the best meter configuration and installation experience.

EM24, EM100 and EM500 series can be provided also with MID (Measuring Instruments Directive 2014/32/UE) approval for fiscal metering (only for the European market).

To help Panel Builders, System Integrators and Installers to use "specified" high-spec meters which are complex to both install and commission, Carlo Gavazzi provides new and innovative tools to make them more time and cost effective.

The goal is to enhance and speed up their activities of initial meter configuration, communication diagnostics and commissioning, thanks to the help of the combination of OptoProg, the optical port-based coupling unit, UCS, the desktop software, and UCS, the mobile app.

The availability of three models with different features, metering capabilities, control functions and plug-in modules allows to meet the different applications requirements.

WM50 is the ideal solution for complex branch circuit monitoring, and thanks to the innovative power of TCD12, furthermore, is possible to:

• Monitor up to 96 channels
• Collect data much more easily and quickly than usual
• Save time and money for installation and commissioning up to 75% compared to standard solutions

In an industrial or commercial installation, a simple metering instrument is not enough.

With the combination of ET272 meters and VMU-C is possible to:

• Establish energy cost centers for cost allocation
• Manage numerous machines/loads
• Reduce installation and commissioning time
• Improve the performance of boy old and new installations

Our critical loads ON/OFF status detection solution range permits to answer both safety and TCO reduction, thanks to these distinguishing features:

• Compact size
• Different models to meet the different installation needs
• Easy through wiring installation

.