Overview
The Siemens SIRIUS 3RT1075-6XB46-0LA2 Power Contactor is a robust, 3-pole switching device engineered for high-performance motor and general-purpose AC switching applications, particularly in demanding environments. As part of the SIRIUS 3RT1 series, this Size S12 contactor is specifically designed for use in railroad and traction applications, complying with the stringent IEC 60077 standard. It features a powerful electronic drive, versatile PLC control input, and high-current capacity.
Key Benefit
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High Switching Capacity: Rated for 400 A and 200 kW at 400 V, ideal for heavy-duty motor control
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Railway-Grade Design: Compliant with IEC 60077, suitable for rolling stock and rail infrastructure
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Wide PLC Input Range: 24–110 V DC input ensures compatibility with diverse control systems
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Flexible Integration: Equipped with 2 NO + 2 NC auxiliary contacts for versatile signaling and feedback
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Durable & Reliable: Built with electronic drive and robust terminals for extended industrial operation
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Easy Installation: Busbar and screw terminal connections enable secure and fast setup
Functionality / Technical Features
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Contactor Type: 3-Pole Power Contactor
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Rated Operating Current (AC-3e/AC-3): 400 A
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Power Rating: 200 kW @ 400 V
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Control Voltage (Uc): 24 V DC x (0.7–1.25)
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PLC Input Voltage Range: 24–110 V DC
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Drive Mechanism: Electronic
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Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)
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Main Circuit Connection: Busbar
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Control / Auxiliary Circuit Connection: Screw Terminal
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Standards Compliance: IEC 60077 (Railroad standard)
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Application Environment: Railway systems, industrial automation, motor switching, control panels
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