Overview
The Siemens 3RT2017-1SB41 is a high-performance SIRIUS 3RT2 Power Contactor designed for reliable switching of motors and auxiliary circuits. As part of the compact SIRIUS modular system, this robust 3-pole contactor is rated for an operational current of 12 A (AC-3e/AC-3) and up to 5.5 kW at 400 V. It features a 24 V DC control voltage coil with a wide operating range and an integrated suppressor diode to protect the control electronics. The compact Size S00 design and reliable screw terminals make it an ideal choice for diverse industrial control applications.
Benefit
- Space-Saving Design: Size S00 for maximum performance in a compact footprint.
- High Reliability: Part of the globally approved SIRIUS modular system, ensuring long mechanical and electrical service life.
- Coil Protection: Integrated suppressor diode reduces voltage peaks, simplifying wiring and protecting sensitive control components like PLCs.
- Global Standard: IE3/IE4-ready and approved for worldwide use (IEC, UL/CSA).
- Simple Wiring: Features user-friendly screw terminals for secure and straightforward connection.
Function & Application
The 3RT2017-1SB41 contactor is primarily used for switching AC motors, resistive loads, and general control circuits. It is a crucial component in industrial automation and control panels, typically found in:
- Direct-on-line (DOL) starter applications.
- Interfacing between control systems and power loads.
- Controlling pumps, fans, conveyors, and machine tools.













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