Overview
The Siemens 3RT1456-2XJ46-0LA2 is a robust and reliable power contactor engineered for demanding industrial and railway environments. Rated AC-1 at 275 A / 690 V and 40°C, this 3-pole contactor ensures efficient switching of high-power loads while offering advanced electronic control and enhanced safety features. Its PLC-compatible input (24-110 V DC) and electronic auxiliary contacts (2 NO + 2 NC) make it ideal for automated systems. With spring-loaded terminals and extended rated conditions, it guarantees consistent performance in heavy-duty applications.
Key Benefit
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High Load Capacity: Handles AC-1 loads up to 275 A and 690 V efficiently.
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Versatile Control: PLC input compatible from 24–110 V DC, ideal for automation.
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Reliable Auxiliary Contacts: 2 NO + 2 NC contacts for enhanced control functionality.
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Robust Construction: Spring-loaded terminals and busbar-compatible main circuit.
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Railway & Industrial Rated: Meets IEC 60077 standards for extended rated conditions.
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Durable & Safe: Designed for heavy-duty and continuous operation environments.
Functions & Features
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3-Pole AC-1 Power Switching: Efficient switching of high-power circuits.
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Electronic Drive & Control: Smooth and precise operation with reduced mechanical wear.
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Auxiliary Contacts: 2 NO + 2 NC provide flexible control and signaling options.
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Extended Rated Condition: Reliable performance under harsh industrial conditions.
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IEC 60077 Compliance: Ensures high safety and reliability for railway applications.
Technical Specification
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Type: Siemens 3RT1456-2XJ46-0LA2
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Rated Current: AC-1 275 A
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Rated Voltage: 690 V
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Poles: 3
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Control Voltage: Uc: 110 V DC (0.7-1.25)
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PLC Input: 24–110 V DC
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Auxiliary Contacts: 2 NO + 2 NC
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Terminals: Spring-loaded
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Main Circuit: Busbar
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Standard: IEC 60077
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Ambient Temperature: 40 °C
Application
This contactor is the ideal choice for switching motors, heating elements, or general loads in:
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Railway and Mass Transit Systems (Rolling Stock)
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Heavy-Duty Industrial Machinery
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Power Distribution Systems in Harsh Climates
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Any application requiring IEC 60077 compliance
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