Overview: Siemens SIRIUS 3RT1075-6AT36 High-Performance Contactor
The Siemens SIRIUS 3RT1075-6AT36 is a heavy-duty 3-pole power contactor designed for reliable switching of large three-phase AC and DC motors and high-current loads. Part of the trusted SIRIUS 3RT1 family, this device is engineered for maximum operational performance and longevity in demanding industrial environments.
With its 400 A rated operational current (AC-3e/AC-3) and high 200 kW rating at 400 V, it is the ideal component for robust motor control and industrial automation applications, ensuring compatibility with modern IE3/IE4 efficiency motors.
Key Benefits and Features
- High Power Motor Switching: Rated for 400 Amps and 200 kW (400V), suitable for large industrial motors and equipment.
- Wide Voltage Compatibility: Features a versatile control voltage (Uc: 575-600 V AC/DC) for global application flexibility.
- Integrated Auxiliary Contacts: Includes 2 Normally Open (NO) + 2 Normally Closed (NC) auxiliary contacts for comprehensive control, interlocking, and signaling.
- Robust Connection: Main circuit connection via busbar for high-current, secure, and compact power distribution.
- Ease of Integration: Control and auxiliary circuits utilize reliable screw terminals for straightforward, secure wiring into control panels.
- Conventional Drive: Equipped with a standard, rugged conventional electromagnetic drive system.
- Certified Quality: As a Siemens SIRIUS product, it guarantees exceptional contact reliability and long mechanical service life (typically 10 million operating cycles).
For more Siemens SIRIUS products, including thermal overloads, auxiliary switches, and complete motor starter solutions, visit turll today!













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