Siemens 3RT2017-2VB42 Power Contactor, 12A, 5.5kW, 24V DC, S00 Original Brand New

Overview

The Siemens 3RT2017-2VB42 is a high-performance SIRIUS 3RT2 power contactor designed for efficient switching of motors and control circuits. This 3-pole contactor is rated for $12\text{ A}$ (AC-3e/AC-3) and $5.5\text{ kW}/400\text{ V}$. Its compact frame size S00 makes it ideal for space-saving installations. It features a reliable $24\text{ V DC}$ coil with an integrated diode for surge suppression and uses secure, maintenance-free spring-loaded terminals. This model includes one normally closed ($1\text{ NC}$) auxiliary contact and is not designed for additional auxiliary switch mounting.

Benefit

• Compact Design (Size S00): Optimizes control panel space without compromising performance.
• Vibration-Proof Connection: Spring-loaded terminals ensure fast, reliable, and maintenance-free wiring, even in high-vibration environments.
• Integrated Protection: The $24\text{ V DC}$ coil includes an integrated diode for effective surge suppression, protecting the control system and extending coil life.
• Global Standard: Part of the modular SIRIUS system, offering coordinated components and approvals for worldwide use (IEC, UL/CSA).
• Energy Efficiency: Suitable for modern IE3/IE4 motors.

Function & Typical Application

The 3RT2017-2VB42 power contactor is primarily used in industrial automation and control systems for:

• Switching AC Motors: Directly controlling the power supply to motors up to $5.5\text{ kW}$.
• Resistive Loads: Switching non-inductive or lightly inductive loads (AC-1 operation).
• Industrial Machinery: Integration into control panels for pumps, fans, conveyors, and other machinery.
• Control & Auxiliary Circuits: The integrated $1\text{ NC}$ auxiliary contact provides feedback or interlocking functions within the control circuit.

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