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
Mr. Heiko Jahr
Energy Management Division
Tel: +49 (9131) 7295-75
Heiko Jahr | Siemens Energy Management
COMPAMED 2016 connected medical devices and people
23.11.2016 | IVAM Fachverband für Mikrotechnik
Successfully transferring Industrie 4.0 into reality
21.11.2016 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
08.12.2016 | Life Sciences
08.12.2016 | Physics and Astronomy
08.12.2016 | Materials Sciences