Overview
The Siemens 3RT1476-6XJ46-0LA2 power contactor is engineered for heavy-duty industrial applications requiring reliable switching and high electrical endurance. Its 3-pole design supports AC-1 operations up to 690 A / 690 V at 40°C. Integrated electronic auxiliary contacts (2 NO + 2 NC) allow seamless PLC integration for automation systems. Built to IEC 60077 standards, it is perfectly suited for extended rated conditions, including demanding railroad environments.
Benefit
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High Reliability: With AC-1 rating of 690 A / 690 V, ensures robust performance under high load.
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PLC Compatible: Supports 24-110 V DC input for seamless integration with control systems.
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Versatile Connections: Main circuit via busbar, control and auxiliary via screw terminals for secure installation.
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Extended Rated Conditions: Engineered for high-demand environments like railways.
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Compliance & Safety: Meets IEC 60077 standards for electrical safety and durability.
Functions & Features
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Main Circuit: Busbar connections ensure minimal voltage drop and efficient power transfer.
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Control Circuit: Screw terminal design provides secure, easy wiring.
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Auxiliary Contacts: 2 NO + 2 NC for flexible automation and signaling applications.
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Input Voltage (Uc): 110 V DC, adjustable for PLC-driven operations (0.7-1.25).
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Temperature Rating: Operates reliably at 40°C ambient conditions.
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Industrial Standard: Conforms to IEC 60077, suitable for railroad and heavy-duty use.
Application
This contactor is the ideal choice for applications requiring high operational reliability and compliance with railway standards, including:
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Railroad and Metro Systems: Power switching, HVAC, and auxiliary systems on rolling stock (trains, trams, subways).
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Heavy-Duty Industrial Heating: Switching resistive loads in furnaces, ovens, and large-scale manufacturing.
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Power Distribution: Main circuit breaking and switching in industrial panels and power centers.
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DC Control Systems: Integration into modern automation and PLC-controlled environments due to the electronic DC drive.
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