Siemens SIRIUS 3RT1054-6AD36 Power Contactor, 115A, 55kW, 42-48V AC/DC Coil, 3-Pole, S6 Size Original Brand New

Overview

The Siemens SIRIUS 3RT1054-6AD36 is a high-performance, robust power contactor from the globally recognized SIRIUS modular system, specifically engineered for switching electric motors up to 55 kW at 400 V (AC-3/AC-3e). This versatile, 3-pole contactor is rated for a massive 115 A operational current and features a flexible 42-48V AC (50/60 Hz) / DC control voltage (Uc).

Its conventional drive mechanism, large Size S6 frame, and included auxiliary contacts (2 NO + 2 NC) make it an ideal choice for heavy-duty industrial control applications. The main circuit utilizes reliable busbar connections, while the control and auxiliary circuits employ secure screw terminals for easy and dependable wiring.

Key Benefits & Advantages

• Exceptional Power Handling: Rated for 115 A operational current and up to 55 kW / 400 V, perfectly suited for powerful motor switching.
• Highly Flexible Control: The wide-range $42\text{–}48\text{V AC/DC}$ (UC) coil voltage allows for use in diverse power supply environments, simplifying inventory and installation.
• Reliable Monitoring & Control: Includes integrated $2\text{ NO}+2\text{ NC}$ auxiliary contacts for seamless integration into safety circuits, feedback loops, and control systems.
• Durable & Robust Design (SIRIUS 3RT1): Part of the SIRIUS family, ensuring long mechanical and electrical service life in demanding industrial conditions.
• Convenient Connection: Features busbar terminals for robust connection in the main circuit and screw terminals for secure and straightforward control/auxiliary wiring.
• Future-Proof Standard: Conforms to the latest efficiency and safety standards like AC-3e (efficiency class) as per IEC 60947.

Application

The Siemens 3RT1054-6AD36 is engineered for heavy-load switching tasks across various industries:

• Starting and stopping of medium to large 3-phase AC motors (e.g., pumps, fans, compressors).
• Switching of non-inductive or slightly inductive loads.
• Integration into complex motor control centers (MCCs) and automation panels.
• Use in machinery where high current capacity and reliability are paramount.

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