Overview
The Siemens SIRIUS 3RT2017-2FF42 is a high-performance 3-pole power contactor designed for reliable switching of motors and electrical loads. This compact contactor, part of the SIRIUS 3RT2 series, is engineered for demanding industrial applications. It features an integrated diode for enhanced coil protection and a 110 V DC operating voltage, making it suitable for a wide range of control systems. The spring-loaded terminals ensure fast, secure, and vibration-proof connections, significantly reducing installation time and maintenance needs. With a rated operational current of 12 A and a power rating of 5.5 kW at 400 V, this Size S00 contactor delivers robust performance in a small footprint.
Benefit
- Space-Saving Design: The compact Size S00 footprint allows for high-density mounting in control cabinets, maximizing panel space.
- Reliable Operation: Built to the highest Siemens quality standards, ensuring long-term reliability and minimal downtime.
- Fast and Secure Connections: Spring-loaded terminals provide a maintenance-free and vibration-proof connection, eliminating the need for retightening.
- Enhanced Coil Protection: The integrated diode protects the control circuit from voltage spikes, prolonging the life of the control components.
- Versatile Application: Suitable for a wide variety of AC-3 and AC-3e applications, including motor switching and general-purpose load control.
- Easy Integration: Part of the comprehensive SIRIUS modular system, offering seamless integration with other Siemens control products and accessories.
Function & Technical Data
- Product Type: Power Contactor
- Model Number: 3RT2017-2FF42
- Product Series: SIRIUS 3RT2
- Number of Poles: 3-pole
- Rated Operational Current (Ie): 12 A (at AC-3e/AC-3, 400 V)
- Rated Power (kW): 5.5 kW (at 400 V)
- Operational Voltage: up to 690 V
- Control Supply Voltage (Us): 110 V DC
- Auxiliary Contacts: 1 NC (Normally Closed)
- Coil Features: Integrated diode
- Connection Type: Spring-loaded terminals
- Size: S00
- Standard: AC-3e / AC-3
- Protection: IP20
Application
The Siemens 3RT2017-2FF42 is ideal for use in:
- Industrial machinery and automation
- Control cabinets and switchgear
- Motor control circuits
- HVAC systems
- Pump and fan control
- General-purpose load switching
For more products in the Siemens SIRIUS 3RT2 series or other industrial control components, visit our Turll products page.












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