Product News: Controls & Controllers, Mechanical Power Transmission

Compact Motor Starter employs hybrid technology.

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Press Release Summary:

December 3, 2012 - Occupying minimal control cabinet space with its 22.5 mm width, Sirius 3RM1 is designed as direct-on-line starter and reversing starter with integrated overload protection for switching up to 3 kW motors. Semiconductor components are responsible for connection and disconnection operations, while relay system is used during operation. This combination extends service life and reduces maintenance. Available infeed system facilitates accelerated implementation of assemblies.

Siemens AG

Wittelsbacherplatz 2, Munich, D-80333, Germany

Original Press Release

Siemens Expands Sirius Portfolio with Particularly Compact Motor Starter

Press release date: November 19, 2012

Nuremberg, Germany

.At just 22.5 mm wide, the Sirius 3RM1 motor starter from Siemens is extremely compact and has been designed as both a direct-on-line starter and a reversing starter for switching small motors with a rating of up to 3 kW.

.The Siemens Industry Automation Division has added the particularly compact Sirius 3RM1 motor starter to its switching technology portfolio. The module has been designed as both a direct-on-line starter and a reversing starter with integrated overload protection for smaller motors with a rating of up to 3 kW, used, for example, for fans, pumps and lifting gear as well as in machine tools. At just 22.5 mm wide, the Sirius 3RM1 requires very little space in the control cabinet. The motor starter therefore meets the requirement in modern plant and machinery construction for space-saving components.

Besides its narrow profile, the Sirius 3RM1 is also characterized by economical hybrid technology that combines the benefits of semiconductor and relay systems in one device: the low-wear semiconductor components are responsible for connection and disconnection operations while an energy-efficient relay system is used during operation. This extends the motor starter's service life and reduces maintenance demands. Siemens also offers a special infeed system for the new motor starter which permits fast and simple implementation of assemblies. As the main circuit is centrally connected to the infeed system, there is no need for separate wiring of the individual motor starters. The assembly with the infeed system is particularly suitable for conveyor systems in which a large number of motors are used on one conveyor belt. When maintenance is required, the individual motor starters from an existing assembly can be removed from the group with little effort thanks to the infeed system. Moreover, the motor starters can also be simply slotted in in the main circuit using a device connector, so there is no need for extensive manual power supply wiring between the motor starters in the assembly. Wiring errors cannot therefore occur and commissioning of the motor starters is speeded up.

More information is available on the Internet at: www.siemens.com/motorstarter/3RM1

You can find this photo on the Internet at www.siemens.com/ia-picture/3406

The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of innovative and environmentally friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the Sector enhances its customers' productivity, efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies. For more information, visit http://www.siemens.com/industry

The Siemens Industry Automation Division (Nuremberg, Germany) supports the entire value chain of its industrial customers – from product design to production and services – with an unmatched combination of automation technology, industrial control technology, and industrial software. With its software solutions, the Division can shorten the time-to-market of new products by up to 50 percent. Industry Automation comprises five Business Units: Industrial Automation Systems, Control Components and Systems Engineering, Sensors and Communications, Siemens PLM Software, and Water Technologies. For more information, visit http://www.siemens.com/industryautomation

ContactMr. Peter Jefimiec
Industry Automation Division
Siemens AG
Gleiwitzerstr. 555
90475  Nuremberg
Germany
Tel: +49 (911) 895-7975
peter.jefimiec@siemens.com

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