Siemens SIRIUS 3RT1066-6SF36 Electronic Power Contactor 300A, 160 kW, S10, F-PLC Input Original Brand New

Overview

The Siemens SIRIUS 3RT1066-6SF36 Power Contactor is a high-performance 3-pole switching device engineered for reliable motor and load control in demanding industrial environments. Part of the robust SIRIUS family, this S10 size contactor is rated for 300 A (AC-3e/AC-3) and an impressive 160 kW / 400 V motor power.

A key feature is its innovative electronic drive system, which allows for a wide control voltage range of 96-127 V AC (50-60 Hz) / DC and includes a dedicated F-PLC input 24 V DC. This makes the 3RT1066-6SF36 ideal for modern automation systems requiring precise control and high integration, including safety applications. It comes equipped with 2 NO + 2 NC integrated auxiliary contacts and uses busbar connection for the main circuit and screw terminals for the control/auxiliary circuit.

Key Technical Specification

• Product ID: 3RT1066-6SF36
• Product Type: Power Contactor (SIRIUS 3RT1)
• Poles: 3-Pole
• Size: S10
• Rated Operational Current (AC-3/AC-3e, 400V): 300 A
• Rated Operational Power (AC-3/AC-3e, 400V): 160 kW
• Control Voltage (Coil): 96-127 V AC (50-60 Hz) / DC (Wide Voltage Range)
• Special Drive Feature: Electronic Drive with F-PLC Input 24 V DC (Fail-Safe Ready)
• Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
• Main Circuit Connection: Busbar
• Control/Auxiliary Circuit Connection: Screw Terminal

Application

The Siemens 3RT1066-6SF36 is the ideal solution for switching high-power, three-phase loads in various industrial sectors:

• Controlling large three-phase motors (e.g., pumps, compressors, fans).
• Switching resistive loads (e.g., heating systems, furnaces).
• Integration into complex machinery and plant control systems where safety-related switching is required (via F-PLC input).
• Use in main power distribution boards and Motor Control Centers (MCCs).

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