Siemens SIRIUS 3RA6 Compact Starters

Siemens SIRIUS 3RA6 Compact Starters combine the functions of a circuit breaker, a solid-state overload relay, and a contactor within a single enclosure. Designers can use these Siemenens SIRIUS compact starters in any application involving the direct starting of standard three-phase motors with a rating of up to 32A (15kW/400V). 3RA6 universal, weld-free motor feeders meet IEC/EN 60947-6-2 standards and are available as a direct or a reversing starter. The 3RA64/3RA65 compact starters can communicate via IO-Link.

Features

  • Combines multiple functions in a single device
    • Motor starter protector
    • Contactor
    • Electronic overload relay
  • Reduces wiring, space, and installation time
  • Modular design allows for easy expansion and replacement
  • Supports direct-on-line and reversing starters
  • Up to 32A (15kW at 400V) motor support
  • Built-in electronic overload protection
  • Compact design saves space in the control cabinet
  • Quick replacement of devices thanks to removable terminals with spring-loaded and screw terminals in the main and control circuit
  • Efficient power distribution through the related SIRIUS infeed system
  • The motor feeder cable connects directly to the SIRIUS infeed system, thanks to an integrated PE bar

Applications

  • Industrial automation
  • Process control
  • Environmental and energy systems
  • Space-limited control panels

Specifications

  • Standards
    • IEC / EN 60947-6-2
    • UL 508 Type E
    • CSA C22.2 No. 14 Type E
  • IP20 (IEC 60529) degree of protection on the front
  • Finger-safe (IEC 60529) touch protection on the front of the compact starter
  • Meets the requirements of IEC / EN 60947‑6‑2 with respect to the isolating features

Industrial Automation Application Example

Application Circuit Diagram - Siemens SIRIUS 3RA6 Compact Starters
Veröffentlichungsdatum: 2025-09-22 | Aktualisiert: 2025-10-13