Sirius 3RM1 Hybrid Motor Starter

Siemens introduces its Sirius 3RM1 hybrid motor starter which is designed to be both a direct-on-line starter and a reversing starter.

Siemens Sirius3rm1motorstarter 10958166
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Siemens Industry Inc. has added the compact Sirius 3RM1 hybrid motor starter to its switching technology portfolio. 

  • Designed to be both a direct-on-line starter and a reversing starter with integrated overload protection for smaller motors with a rating of up to 3 hp
  • Can be used for fans, pumps and lifting gear, as well as in machine tools and more
  • Measures 22.5 mm wide
  • Compact size reduces space requirements in control cabinet by up to 82%
  • Uses hybrid technology that combines benefits of semiconductor and relay systems in one device
  • Low-wear semiconductor components are responsible for connection and disconnection operations while energy-efficient relay system is used during operation
  • Extends the motor starter’s service life and reduces maintenance demands 
  • Special infeed system available which permits fast and simple implementation of group motor starter installations
  • Infeed system centrally connects main circuit to infeed system to eliminate need for separate wiring of individual motor starters
  • When maintenance is required, the individual motor starters from an existing assembly can be replaced with little effort due to infeed system
  • Can be simply bussed in control circuit using a device connector, so there is no need for extensive manual power supply wiring between motor starters in the assembly
  • Wiring errors are reduced, and commissioning of the system is completed in less time
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