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/sentronFollow us on Twitter at: www.twitter.com/siemens_press
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
ContactMs. Heidi Fleißner
Heidi Fleißner | Siemens Infrastructure
Laser sensor LAH-G1 - optical distance sensors with measurement value display
15.08.2017 | WayCon Positionsmesstechnik GmbH
Engineers find better way to detect nanoparticles
14.08.2017 | Washington University in St. Louis
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
17.08.2017 | Physics and Astronomy
17.08.2017 | Earth Sciences
17.08.2017 | Physics and Astronomy