Siemens SIRIUS 3RT1055-6AF36-3PA0 Power Contactor, 150A, 75kW, 110-127V AC/DC, Size S6 Original Brand New

Overview

The Siemens SIRIUS 3RT1055-6AF36-3PA0 is a high-performance, 3-pole power contactor from the globally renowned SIRIUS 3RT1 series, designed for reliably switching motors and other loads up to 150 A at $AC-3e/AC-3$ or 75 kW at $400V$.

This robust IEC magnetic contactor (Size S6) is engineered for demanding industrial control applications. It features a versatile 110-127 V AC/DC control voltage for global use and includes a permanently mounted auxiliary switch block with 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, simplifying wiring and enhancing system safety. The main circuit connections are designed for busbar integration, while the control and auxiliary circuits use reliable screw terminals.

Key Benefit

• High Performance: Capable of switching up to 150 A ($AC-3$) and controlling 75 kW / 125 HP (at 480V) motors.
• Global Application: Features a wide-range, conventional $AC/DC$ control coil (110-127 V UC) for maximum flexibility in different power systems.
• Integrated Safety: Comes standard with $2NO+2NC$ auxiliary contacts, often required for safety and feedback circuits (SUVA applications compliant).
• Modular SIRIUS System: Part of the coordinated SIRIUS modular system, ensuring seamless integration and compatibility with a wide range of accessories (e.g., overload relays).
• Durable Design: High mechanical and electrical service life (up to 10 million operating cycles).
• Dual Connection Method: Offers busbar connection for the main circuit and reliable screw terminals for the control/auxiliary circuits.

Application

The Siemens 3RT1055-6AF36-3PA0 is the ideal choice for demanding motor control and load switching tasks in various industrial environments, including:

• Starting and stopping large 3-phase AC motors (IE3/IE4 Ready).
• Switching resistive loads (heating, lighting).
• Integration into complex control panels and motor control centers (MCCs).
• Applications requiring integrated, safety-oriented auxiliary switch blocks.

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