Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New miniature circuit breaker for operation in buildings

23.10.2013
Siemens has developed a new miniature circuit breaker (MCB) with a switching capacity of 10 kilo amperes (kA), which can be used especially in non-residential and industrial buildings.

The 5SL4 miniature circuit breaker safely shuts down circuits in buildings in case of overloads or short circuits and thus protects cables and devices from damage. The MCB with an integrated snap-on fixing system for mounting on the standard mounting rail can be integrated with minimum effort in existing electrical installations and combined with additional devices.


The new Siemens 5SL4 miniature circuit breakers are rated for 10-kA applications and can be flexibly expanded to offer additional functions.

The MCB is compatible with all Siemens accessory components, such as AFD units, auxiliary and residual current operated circuit breakers, undervoltage releases and fault signal contacts, and can thus be expanded by a wide range of functions. In addition to high operational and plant safety, the 5SL4 miniature circuit breakers offer protection and convenience during installation and servicing: The touch protection integrated in the terminals protects the installer from electrical shock when connecting the devices. The colored switch position indicator integrated in the handle always clearly indicates the current switching state. A handle locking device prevents unauthorized switching. Thanks to the consistent busbar concept, all the devices can be quickly and easily fitted in existing electrical installations. With the aid of the latching slide, they can be conveniently mounted on or removed from the standard mounting rail in the junction box. The rectangularly-designed terminals offer space for pin busbars, as well as additional conductors with a surface area of 0.75 to 25 mm².

The new Siemens devices in the 5SL4 series are available with the tripping characteristics B, C and D: The miniature circuit breakers with tripping characteristic B are designed for universal use in socket outlet circuits and lighting circuits. In lamp and motor circuits with higher starting currents, miniature circuit breakers with tripping characteristic C are generally used. For electrical circuits with strong pulse-generating equipment, such as transformers or solenoid valves, switches are used with tripping characteristic D.

For further information on miniature circuit breaker, please see www.siemens.com/sentron

Follow us on Twitter at: www.twitter.com/siemens_press

The Siemens Infrastructure & Cities Sector (Munich, Germany) with approximately 90,000 employees, focuses on sustainable technologies for metropolitan areas and their infrastructures. Its offering includes products, systems and solutions for intelligent traffic management, rail-bound transportation, smart grids, energy efficient buildings, and safety and security. The Sector comprises the divisions Building Technologies, Low and Medium Voltage, Mobility and Logistics, Rail Systems and Smart Grid. For more information, visit http://www.siemens.com/infrastructure-cities

The Siemens Low and Medium Voltage Division (Erlangen, Germany) serves the entire product, system, and solutions business for reliable power distribution and supply at the low- and medium-voltage levels. The Division's portfolio includes switchgear and busbar trunking systems, power supply solutions, distribution boards, protection, switching, measuring and monitoring devices as well as energy storage systems for the integration of renewable energy into the grid. The systems are supplemented by communications-enabled software tools that can link power distribution systems to building or industry automation systems. Low and Medium Voltage ensures the efficient supply of power for power grids, infrastructure, buildings, and industry. Additional information is available at: http://www.siemens.com/low-medium-voltage

Reference Number: ICLMV20131001e

Contact

Ms. Heidi Fleißner
Low and Medium Voltage Division
Siemens AG
Tel: +49 (941) 790-2212
heidi.fleissner​@siemens.com
Mr. Heiko Jahr
Low and Medium Voltage Division
Siemens AG
Freyeslebenstr. 1
91058 Erlangen
Germany
Tel: +49 (9131) 7-29575
heiko.jahr​​@siemens.com

Heidi Fleißner | Siemens Infrastructure
Further information:
http://www.siemens.com/sentron

More articles from Power and Electrical Engineering:

nachricht The role of Sodium for the Enhancement of Solar Cells
17.07.2018 | Max-Planck-Institut für Eisenforschung GmbH

nachricht Behavior-influencing policies are critical for mass market success of low carbon vehicles
17.07.2018 | International Institute for Applied Systems Analysis (IIASA)

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

NYSCF researchers develop novel bioengineering technique for personalized bone grafts

18.07.2018 | Life Sciences

Machine-learning predicted a superhard and high-energy-density tungsten nitride

18.07.2018 | Materials Sciences

Why might reading make myopic?

18.07.2018 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>