Product advantages

• Less space required in the control cabinet (20 to 80%) thanks to high functional density, which also means reduced wiring and testing
• Greater endurance and reduced heat losses thanks to hybrid technology, see http://www.siemens.com/sirius/energysaving
• Lower costs for stock keeping and configuration as a result of the wide setting range of the electronic overload release (up to 1:5)
• Fast wiring without tools for rigid conductors or conductors equipped with end sleeves thanks to push-in connections (spring-type terminals)
• Safety-orientated shutdown in accordance with SIL3/Ple by shutting down the control supply voltage without additional devices in the main circuit
• The motor starters can be ideally combined with 3SK safety relays for safety-related shutdown
• Motor status feedback to the higher-level control system in the case of 3RM10 and 3RM12 motor starters in the 24 V DC version
• Virtually error-free wiring on the mains connection side and reduction in short-circuit protective devices by means of 3RM19 infeed system
• ATEX certification of the overload protection of the 3RM1 Failsafe motor starters "Increased safety" type of protection EEx e according to ATEX directive 94/9/EC
• The 3RM1 motor starters can be used with highly energy-efficient IE3 motors. In this regard, please observe the information on dimensioning and configuring, see "Configuration Manual for SIRIUS Controls with IE3 Motors”, https://support.industry.siemens.com/cs/ww/en/view/94770820

Standards and approvals

• IEC/EN 60947-4-2
• UL 508
• ATEX
• IEC 61508-1: SIL3
• ISO 13849: PL e
• CCC approval for China