Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

3VA molded case circuit breakers with new features and variants

16.03.2015

Siemens at the Hannover Messe 2015: Hall 9, Booth D35

Siemens has added new versions and product features to its 3VA series of molded case circuit breakers (MCCB) from its Sentron portfolio. The 3VA1 series is now available for a higher rated current of up to 250 A and has been expanded to include starter protection variants.


3VA molded case circuit breakers with new features and variants

Siemens also now offers the 3VA2 series in motor protection and starter protection variants that protect the electric drives against short-circuits and overloads. The company also improved the selectivity characteristics of the devices. The 3VA series thus meets all energy distribution requires for protecting cables, electrical loads and industrial equipment against electrically induced damage and down times.

As part of updating the portfolio, Siemens developed a new electronic trip unit (ETU) with an optimized tripping characteristic that improves the selective grading of 3VA2 MCCB with downstream fuses. The rated current intervals between the molded case circuit breaker and the fuse can thus be selected based on need, so that molded case circuit breakers with low rated currents can also be used, thus saving money.

Since the characteristic is steeper compared to common trigger characteristics, the protection devices switch off earlier in the event of an overload. The electrical load of the equipment is thus reduced in the event of an overload or short-circuits. The series’ new ETU is also easier to parameterize, since the only value that needs to be set is the tripping current of the overload protection system.

As an integrated, variable system, the 3VA MCCB are designed to provide optimum support for every step, from planning and installation to ongoing operation of the electrical energy distribution system. This is also supported by the range of accessories, which is standard for all series and multiple sizes and includes more than 500 components.

These accessories can be used to add around 70 functions to the circuit breakers in modules and thus adapt them to nearly all requirements. An online product configurator as well as comprehensive CAx data, such as 3D models and EPLAN macros, make the devices easier to engineer. With the aid of an integrated measuring function, data such as current, voltage, energy values and system states can also be recorded with the 3VA2 MCCB and transmitted to higher-level automation systems via common bus systems such as PROFIBUS and PROFINET. The molded case circuit breakers thus help increase system transparency and energy efficiency.

Depending on the size and series, 3VA MCCB are available in one-pole to four-pole versions and are designed for rated currents of 16 A to 630 A as well as rated voltages of up to 690 volts (VA) AC.

For further information on 3VA molded case circuit breakers, please see http://www.siemens.com/3VA


Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world’s largest producers of energy-efficient, resource-saving technologies, Siemens is No. 1 in offshore wind turbine construction, a leading supplier of combined cycle turbines for power generation, a major provider of power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2014, which ended on September 30, 2014, Siemens generated revenue from continuing operations of €71.9 billion and net income of €5.5 billion. At the end of September 2014, the company had around 357,000 employees worldwide. Further information is available on the Internet at www.siemens.com


Reference Number: PR2015020132EMEN


Contact
Mr. Heiko Jahr
Energy Management Division
Siemens AG

Freyeslebenstr. 1

91058 Erlangen

Germany

Tel: +49 (9131) 7295-75

heiko.jahr​@siemens.com

Heiko Jahr | Siemens Energy Management

More articles from Trade Fair News:

nachricht Solar Collectors from Ultra-High Performance Concrete Combine Energy Efficiency and Aesthetics
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE

nachricht Energy-Efficient Building Operation: Monitoring Platform MONDAS Identifies Energy-Saving Potential
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland

19.01.2017 | Earth Sciences

Not of Divided Mind

19.01.2017 | Life Sciences

Molecule flash mob

19.01.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>