Siemens SIRIUS 3RT2 Contactor 12A, 5.5kW, 24V DC, Varistor, 1 NO, S00 Original Brand New

Overview

The Siemens 3RT2017-1UB41 is a high-performance SIRIUS 3RT2 power contactor engineered for efficient switching of motors and other industrial loads up to 5.5 kW at 400 V (AC-3/AC-3e). This compact, 3-pole contactor in Size S00 is a crucial component for reliable industrial automation and motor control applications. It features a low-power 24 V DC operating coil for seamless integration into modern control systems and includes an integrated varistor to protect the control circuit from switching surges, ensuring long-term reliability.

Benefits

• Exceptional Reliability: Built to Siemens’ high SIRIUS standard, offering a long mechanical and electrical service life for demanding industrial use.
• Space-Saving Design: Compact Size S00 allows for high-density installation in control cabinets, optimizing panel space.
• Coil Protection Included: The integrated varistor eliminates the need for external surge suppression components, simplifying wiring and reducing installation time and cost.
• Direct PLC/Control System Integration: The 24 V DC control voltage is standard for most industrial automation systems (PLCs), allowing for direct and reliable interfacing.
• Secure & Proven Connections: Utilizes screw terminals for robust and secure wiring connections in vibrating or harsh environments.

Function

The 3RT2017-1UB41 functions as an electromechanical switch used to safely make and break the main power circuit to industrial equipment, typically 3-phase motors. When the 24 V DC coil is energized, it closes the three main poles and the 1 NO auxiliary contact. The single Normally Open (1 NO) auxiliary contact provides feedback or interlocking for the control circuit, indicating the contactor’s status.

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