Siemens 3RT2046-3AB00 SIRIUS Power Contactor AC-3e/AC-3, 95A, 45kW, 24V AC Coil, S3 Size, Spring-Loaded Aux Original Brand New

Overview: High-Performance SIRIUS 3RT2 Contactor

The Siemens 3RT2046-3AB00 is a high-performance, 3-pole SIRIUS power contactor designed for reliable switching of motors and other industrial loads up to 45 kW (at $400\text{ V}$). Part of the innovative SIRIUS 3RT2 series, this Size S3 contactor offers a compact, robust solution for modern control cabinet construction. Its compatibility with both the older AC-3 and the new energy-efficient AC-3e utilization categories ensures future-proof operation for both standard and high-efficiency motors (including IE2 and IE3).

Benefit

• Reliable Motor Protection: Engineered for safe and reliable switching of three-phase motors up to $45\text{ kW}$, meeting both $\text{AC-3}$ and the new energy-efficiency standard $\text{AC-3e}$.
• Flexible Connection Technology: Features screw terminals for the main power circuit, ensuring a strong, high-current connection, combined with spring-loaded terminals for quick, vibration-proof wiring of the control and auxiliary circuits.
• Space-Saving Design: As part of the SIRIUS modular system, the $\text{S3}$ size is designed for space-efficient integration into industrial control panels.
• Easy System Integration: The built-in $1\text{ NO}+1\text{ NC}$ auxiliary contact configuration simplifies wiring for interlocking and status signaling without needing immediate add-on blocks.
• High Mechanical Life: Offers an impressive mechanical service life of up to $10,000,000$ switching cycles, providing long-term reliability.

Function and Application

The Siemens 3RT2046-3AB00 contactor is primarily used as a main switching element for electric motors in industrial automation and control applications. It is essential for:

• Starting and Stopping Motors: Controlling the flow of power to $95\text{ A}$ (AC-3/AC-3e) motor loads.
• Machine Control: Integration into control circuits for machinery, pumps, fans, and conveyor systems.
• Energy Management: Switching resistive loads (AC-1) up to $130\text{ A}$.

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