Overview: High-Performance Siemens SIRIUS 3RT2 Power Contactor (3RT2017-2AH02)
The Siemens 3RT2017-2AH02 is a robust and compact 3-pole power contactor from the trusted SIRIUS 3RT2 series, designed for reliably switching motors and other electrical loads. This specific model is engineered for optimal performance with an operational current of 12 A (AC-3e/AC-3) and a rated power of 5.5 kW at 400 V.
Featuring a control supply voltage of 48 V AC (50/60 Hz), the contactor is equipped with a fast and secure spring-loaded terminal connection method, ensuring vibration-proof and maintenance-free wiring. Its built-in 1 NC (Normally Closed) auxiliary contact provides essential feedback and control circuitry functionality in a space-saving Size S00 footprint.
Key Technical Specification
- Product Type: Power Contactor (for motor switching)
- Series: SIRIUS 3RT2
- Article Number: 3RT2017-2AH02
- Poles: 3-pole
- Operational Current (): 12 A (at )
- Operational Power (): 5.5 kW (at )
- Control Voltage (): 48 V AC (50/60 Hz)
- Auxiliary Contacts: 1 NC (Integrated)
- Connection Type: Spring-Loaded Terminal (Spring-Type Terminal)
- Size: S00
- Function: Switching 3-phase motors and resistive loads (up to 5.5 kW)
Benefit
- Reliable Performance: Part of the SIRIUS modular system, ensuring high contact reliability and durability for critical applications.
- Space Saving: Compact Size S00 design allows for high-density installation in control cabinets.
- Fast, Secure Wiring: The innovative spring-loaded terminal connections enable quick, reliable, and vibration-proof wiring, significantly reducing installation time and maintenance needs compared to traditional screw terminals.
- Global Standard Compliance: Approved for worldwide use (e.g., IEC and UL/CSA), making it suitable for international projects.
- IE3/IE4 Ready: Optimized for switching modern, highly efficient IE3 and IE4 motors.
- Modular Flexibility: Compatible with a wide range of standardized SIRIUS accessories and components for building complete load feeders.
Function & Application
The Siemens 3RT2017-2AH02 primarily serves as an electro-mechanical switching device (contactor) for the control of three-phase loads, most commonly AC motors. It is suitable for applications such as:
- Direct-on-line (DOL) starting and stopping of 3-phase motors up to 5.5 kW.
- Switching resistive loads (AC-1 duty).
- Integration into machinery, HVAC systems, pumping stations, and conveyor systems.
The integrated 1 NC auxiliary contact provides a reliable signal for interlocking, status indication, or control circuit feedback.
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