Siemens 3RT1054-2AB36 Power Contactor 115 A, 55 kW, 23-26V AC/DC Coil, SIRIUS 3RT1 Original Brand New

Product Overview

The Siemens 3RT1054-2AB36 is a high-performance, 3-pole SIRIUS 3RT1 power contactor designed for industrial motor switching applications. Engineered for reliability in demanding environments, this robust magnetic contactor is rated for $115\text{A}$ (AC-3e/AC-3) and $55\text{kW}$ at $400\text{V}$, making it an ideal component for safely and efficiently controlling large motors and resistive loads.

A key feature of the 3RT1054-2AB36 is its versatile $\text{AC}$ (50-60 Hz) / $\text{DC}$ control circuit, operating on a low control supply voltage $\text{Uc}$ of $23\text{-}26\text{V}$. This universal voltage capability simplifies integration into various control systems. The contactor is equipped with a conventional drive mechanism and includes $2\text{ NO}+2\text{ NC}$ pre-assembled auxiliary contacts for enhanced signaling and interlocking functionality.

The main power circuit connection utilizes robust busbar terminals, providing secure, high-current connections, while the control and auxiliary circuits use user-friendly spring-loaded terminals for quick, vibration-proof wiring. As a Siemens SIRIUS product, the 3RT1054-2AB36 guarantees superior quality, a long mechanical service life ($10$ million operating cycles typical), and compliance with global standards including IEC 60947.

Key Benefit

• Exceptional Power Handling: $115\text{A}$ (AC-3e/AC-3) and $55\text{kW}$ rating for heavy-duty motor control.
• Flexible Control Voltage: Universal 23-26 V AC/DC control coil simplifies inventory and global deployment.
• Reliable Connections: Busbar main terminals for secure power input/output and spring-loaded control terminals for fast, dependable wiring.
• Enhanced Functionality: Integrated $2\text{ NO}+2\text{ NC}$ auxiliary contacts for comprehensive control circuit signaling.
• Industry Standard: Part of the Siemens SIRIUS 3RT1 family, ensuring compatibility and trusted German engineering quality.

Application

The Siemens 3RT1054-2AB36 contactor is perfectly suited for controlling high-power industrial loads, including:

• Direct On-Line (DOL) starting of motors (Full-Voltage Non-Reversing - FVNR).
• Switching resistive loads (AC-1).
• Integration into complex motor control centers (MCCs).
• Heavy-duty machinery in manufacturing, HVAC, and pumping stations.

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