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• • • • • • SIEMENS 3RT1066-6AF36 Power Contactor

            Product Overview

            SIEMENS 3RT1066-6AF36 is a SIRIUS 3RT1 Power Contactor designed for switching and controlling high-power motors and industrial loads. It is a 3-pole contactor, size S10, suitable for heavy-duty motor control applications such as industrial machinery, pumps, fans, and production equipment.

            This contactor is rated for AC-3 operation at 300 A and 160 kW / 400 V, with a 110–127 V AC/DC coil, and includes 2NO + 2NC auxiliary contacts.

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            Specifications

            • Brand: SIEMENS
            • Series: SIRIUS 3RT1
            • Model: 3RT1066-6AF36
            • Product Type: Power Contactor
            • Number of Poles: 3 Pole
            • Frame Size: S10
            • Utilization Category: AC-3
            • Rated Operational Current: 300 A
            • Rated Motor Power: 160 kW at 400 V AC
            • Coil Voltage: 110–127 V AC/DC
            • Frequency: 50/60 Hz
            • Auxiliary Contacts: 2 NO + 2 NC
            • Main Connection: Busbar Connection
            • Control/Auxiliary Terminals: Screw Terminals
            • Mounting: Panel Mount
            • Protection Rating: IP00 (front)
            • Insulation Voltage: Up to 1000 V
            • Operating Temperature: -25…+60 °C

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            Advantages & Features

            • High-current switching capability for industrial motors
            • Suitable for large motor starting and stopping applications
            • Reliable Siemens SIRIUS contactor technology
            • Supports AC and DC coil operation
            • Integrated auxiliary contacts for control and feedback circuits
            • Robust design for demanding industrial environments
            • Compatible with Siemens motor control systems
            • Suitable for replacement and maintenance of existing equipment

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            Applications

            • Motor Control Centers (MCC)
            • Large industrial motors
            • Pumps and compressors
            • Fans and ventilation systems
            • Conveyor systems
            • Manufacturing machinery
            • Industrial automation control cabinets
            • Power distribution equipment

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            Precautions

            • Confirm coil voltage before energizing
            • Check motor current and power rating before selection
            • Ensure proper busbar and terminal connections
            • Use suitable overload protection devices
            • Disconnect power before installation or maintenance
            • Verify auxiliary contact wiring before operation 

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