Overview
The Siemens 3RT1066-6NB36 is a robust power contactor designed for heavy-duty industrial automation and control systems. Engineered for AC-3e/AC-3 applications, it supports currents up to 300 A and power up to 160 kW at 400 V. Its compact 3-pole design and integrated 24 V DC PLC input make it ideal for precise motor control and automation setups. Equipped with auxiliary contacts (2 NO + 2 NC) and a combination of busbar main circuit and screw terminal control circuits, it ensures flexible and reliable operation in demanding environments.
Key Features & Function
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Rated Operational Current: AC-3e/AC-3 300 A
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Rated Power: 160 kW at 400 V AC
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Control Voltage: AC (50–60 Hz) / DC Uc: 21–27.3 V
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PLC Compatibility: 24 V DC input
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Poles: 3-pole main circuit
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Auxiliary Contacts: 2 NO + 2 NC for expanded control options
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Drive Type: Electronic for precise switching
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Main Circuit Connection: Busbar
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Control & Auxiliary Circuit: Screw terminals for secure connections
Benefit
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Ensures high operational reliability in industrial environments.
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Supports heavy-duty motor and load control applications.
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Energy-efficient and precise switching thanks to electronic drive.
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Flexible installation with busbar and screw terminal options.
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Expandable control options with auxiliary contacts.
Application
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Industrial motor control and automation systems
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Heavy-duty electrical distribution panels
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PLC-controlled industrial machinery
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Manufacturing and process automation systems
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