Siemens 3RT2017-2BF42 – SIRIUS Power Contactor, 12A, 5.5kW, 110V DC, Size S00 with Spring-Loaded Terminals Original Brand New

Overview

The Siemens 3RT2017-2BF42 is a high-performance SIRIUS power contactor, engineered for reliable switching of motors and other industrial loads. This 3-pole contactor is a key component in any automation or control system, offering exceptional efficiency and durability.

With a rated operational current of 12A for AC-3e/AC-3 applications and a power rating of 5.5kW at 400V, it is perfectly suited for a wide range of demanding applications. Its compact Size S00 design saves valuable panel space, while the innovative spring-loaded terminals ensure fast, secure, and vibration-proof wiring connections.

Key Features & Benefit

• Compact & Space-Saving Design: The Size S00 frame allows for high-density mounting in control cabinets, maximizing efficiency and minimizing footprint.
• Reliable Performance: Rated for both AC-3e and AC-3 applications, this contactor provides stable and consistent performance for standard motor switching.
• Efficient Power Handling: Capable of handling loads up to 5.5kW at 400V, making it a versatile choice for a variety of industrial machines.
• Secure & Fast Connections: The integrated spring-loaded terminals (cage clamp) eliminate the need for screws, drastically reducing wiring time and providing a maintenance-free, vibration-resistant connection.
• Versatile Control Voltage: Operates on a 110 V DC control voltage, making it compatible with various modern control systems.
• Built-in Auxiliary Contact: Includes one normally closed (1 NC) auxiliary contact for feedback, interlocking, or control circuit functions, simplifying your system design.
• Long-Lasting Durability: Part of the trusted Siemens SIRIUS series, known for its robust construction and long electrical and mechanical service life.

Functionality

The Siemens 3RT2017-2BF42 contactor functions as an electromechanical switch. When the 110 V DC control voltage is applied to the coil, it generates a magnetic field that pulls the armature, closing the main power contacts. This allows current to flow to the connected load (e.g., an electric motor). When the control voltage is removed, a spring returns the armature to its original position, opening the main contacts and interrupting the power supply. The integrated 1 NC auxiliary contact changes state in tandem, providing a signal to the control circuit.

Application

• Motor Control Circuits
• Machine Tool Industry
• HVAC Systems
• Conveyor Systems
• Pumps and Compressors
• Automation and Robotics
• Panel Building and Electrical Engineering

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