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Compact. Economical. Simple. SIRIUS 3RM1 Motor Starter – Getting started, even when things get tight

© Siemens AG 2020. All rights reserved.
2020-02-07 12:01 am

The SIRIUS 3RM1 motor starters combine the functionality of contactors and overload relays in a width of only 22.5 mm. This saves space in the control cabinet and offers ideal conditions for systems and machines with many small motors up to 3kW.

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Compact. Economical. Simple. #BeSIRIUS

Significant space saving with direct start, reversing start or reversing start with safety function

  • SIRIUS 3RM1 Motor Starter© Siemens AG 2020. All rights reserved.

Space-saving systems require maximum efficiency and can pose significant challenges for system engineers. Systems and machinery are becoming increasingly compact and are expected to have smaller footprints, but at the same time they typically require more and more auxiliary drives. As every millimeter in the control cabinet counts, SIRIUS 3RM1 motor starters are precisely tailored to meet these requirements. At the same time, these motor starters simplify your work by simple setting of the motor current via the rotary encoder switch, by low wiring costs, especially through the use of the 3-phase infeed system, and by fast error diagnosis via LED displays. Thanks to the multifunctionality of the devices, you also benefit from space savings of up to 75%, whether for direct start, reversing start or reversing start with safety function.

© Siemens AG: Start-up with a small footprint - space savings of up to 75% compared to conventional relay-contactor combinations

Technical Data

Please find below some product examples for reversing starters; other types in other versions are also available.

Article number Version Rating for three-phase motor at 400 V in kW Adjustable current response value of the inverse-time delayed overload release in A
3RM1201-3AA04

Reversing Starter,
24 V DC

0…0,12

0,1…0,5

3RM1202-3AA04 Reversing Starter,
24 V DC
0,09…0,75 0,4…2
3RM1301-3AA04 Reversing Starter Failsafe,
24 V DC
0…0,12 0,1…0,5
3RM1302-3AA04 Reversing Starter Failsafe,
24 V DC
0,09…0,75 0,4…2
3RM1307-3AA04 Reversing Starter Failsafe,
24 V DC
0,55…3 1,6…7

 

Your advantages at a glance

  • Compact width of 22.5 mm
  • Multifunctional: functionality of contactor and overload relay
  • Hybrid switching technology for more efficiency
  • Fast and clear error diagnosis through LED displays
  • Low wiring effort in particular due to device connectors and use of the 3-phase infeed system
  • Group design possible
  • Simple setting of the motor current by rotary encoder switch
  • Wide adjustment range for low device variance

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