Siemens 3RT2017-1FB44-3MA0 SIRIUS 3RT2 Power Contactor, 3-pole, 12A, 5.5kW/400V, 24V DC Coil Original Brand New

Overview

The Siemens 3RT2017-1FB44-3MA0 is a high-performance, 3-pole power contactor from the robust SIRIUS 3RT2 series. Specifically designed for switching motors up to 5.5 kW at 400 V (AC-3e/AC-3), this size S00 contactor offers exceptional reliability in industrial control applications. Its compact design and integrated features make it a premier choice for OEMs and panel builders seeking efficiency and simplified wiring.

Key Technical Specifications & Function

This section directly incorporates the core product data and keywords.

• Contactor Type: Power Contactor (AC-3e/AC-3)
• Manufacturer Part No.: 3RT2017-1FB44-3MA0
• Brand: Siemens SIRIUS 3RT2
• Poles: 3-pole main contacts
• Rated Operational Current (Ie​): 12 A (at 400 V)
• Rated Operational Power (Pe​): 5.5 kW (at 400 V)
• Coil Voltage: 24 V DC
• Coil Feature: Integrated diode for surge suppression, simplifying installation and protecting control components.
• Auxiliary Contacts: 2 NO + 2 NC (Normally Open + Normally Closed)
• Connection Type: Screw Terminal
• Size: S00
• Special Feature: Captive auxiliary switch for enhanced safety and compliance (often required for SUVA or safety applications).

Benefit

• Maximum Reliability: As part of the SIRIUS family, the 3RT2017-1FB44-3MA0 ensures long mechanical and electrical service life for critical motor switching applications.
• Simplified Installation: The 24V DC coil with integrated diode eliminates the need for external suppressor elements, saving wiring time and panel space.
• Enhanced Safety: Includes a captive auxiliary switch (2 NO + 2 NC), making it ideal for safety circuits and meeting stringent industrial standards.
• Space-Saving Design: The Size S00 construction allows for high power switching in a minimal footprint, optimizing control cabinet density.
• Global Standard Compliance: Suitable for global use with AC-3e/AC-3 ratings, ensuring compliance across various machinery and regions.

Application

The Siemens 3RT2017-1FB44-3MA0 contactor is primarily used for switching:

• Standard three-phase AC motors (up to 5.5 kW)
• Resistive loads
• Pumps, fans, and conveyor systems
• General industrial motor control circuits
• Safety-related applications requiring a captive auxiliary switch

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