Siemens SIRIUS 3RT1075-6SP36-3PA0 Power Contactor 400A, 200kW, Electronic Drive with F-PLC Input Original Brand New

Overview

The Siemens SIRIUS 3RT1075-6SP36-3PA0 is a high-performance, 3-pole power contactor designed for reliable switching of large motors and high-current loads up to 400 A (AC-3e/AC-3) and 200 kW at 400 V. This contactor is part of the robust SIRIUS 3RT1 series and features an innovative electronic drive with a wide-range AC/DC control voltage ($200-277\text{V}$) and a dedicated F-PLC input (24 V DC) for seamless integration into modern, safety-oriented automation systems. Its construction is engineered for demanding industrial environments, ensuring maximum operational reliability and efficiency.

Key Features and Specification

• Product Number: 3RT1075-6SP36-3PA0
• Contactor Series: Siemens SIRIUS 3RT1 (Size S12)
• Poles: 3-pole
• Rated Operational Current (Ie​): 400 A (AC-3e/AC-3 at 400 V)
• Rated Power: 200 kW (at 400 V)
• Coil/Control Voltage: Wide-range AC ($50-60\text{Hz}$) / DC $200-277\text{V}$ (with $0.8-1.1$ factor)
• Control Input: F-PLC input $24\text{V DC}$ (Fail-Safe PLC input)
• Auxiliary Contacts: $2\text{ NO}+2\text{ NC}$ (Permanently mounted)
• Main Circuit Connection: Busbar connection
• Control/Auxiliary Circuit Connection: Screw terminals
• Drive Type: Electronic drive

Benefit

• Advanced Safety Integration: The industry-first F-PLC input allows for direct connection to fail-safe controllers, simplifying wiring and enabling applications up to SIL 2 / PL c with a single contactor, reducing the need for additional coupling relays.
• High Performance: Capable of handling significant loads up to $400\text{A}$ and $200\text{kW}$, making it ideal for heavy-duty motor control.
• Versatile Control: The wide-range $200-277\text{V}$ AC/DC electronic drive simplifies logistics and stock-keeping, providing consistent performance across various international supply voltages.
• Robust & Reliable: Built as part of the SIRIUS modular system, offering high contact reliability, a long mechanical lifespan, and resistance to environmental factors.
• Efficient Installation: Main circuit busbar connections allow for simplified high-current wiring, while screw terminals ensure secure connections for control and auxiliary circuits.

Function

The 3RT1075-6SP36-3PA0 Power Contactor functions as an electrically operated switch for motor control and switching high-current circuits. It is primarily used to:

1. Switch 3-Phase Motors: Start, stop, and control 3-phase AC motors (AC-3e/AC-3 applications).
2. Handle High Resistive Loads: Switch high-power resistive loads (AC-1 applications).
3. Provide Auxiliary Signalling: The built-in $2\text{ NO}+2\text{ NC}$ auxiliary contacts provide feedback to the control system or interlock other circuit components.
4. Enable Safety Shutdown: The $24\text{V DC}$ F-PLC input ensures a safe, direct, and fast shutdown capability when controlled by a Fail-Safe PLC, critical for machine safety functions.

Application

This powerful SIRIUS contactor is perfect for industries and applications requiring reliable switching of high-power motors and loads, particularly where integration with modern safety control systems (PLCs) is essential:

• Pumps and Compressors
• Ventilation and Air Conditioning Systems
• Material Handling and Conveyors
• Heavy Industrial Machinery
• Main Circuit Switching for large plant equipment

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