Siemens 3RT2036-3XJ40-0LA2 SIRIUS Power Contactor Traction Contactor, AC-3e/AC-3, 51 A, 22 kW, 72 V DC, Solid-State Original Brand New

Overview

The Siemens 3RT2036-3XJ40-0LA2 is a high-performance SIRIUS power contactor specifically engineered for demanding traction applications. This robust 3-pole contactor is designed to handle high currents and provide reliable switching for a wide range of industrial and mobile machinery.

Featuring a solid-state operating mechanism with an integrated varistor, it ensures exceptional durability and surge protection. Its versatile terminal design—combining screw terminals for the main circuit with spring-loaded terminals for control and auxiliary circuits—offers maximum flexibility and ease of installation.

Key Features & Benefit

• High Power Handling: Rated for 51 A and 22 kW at 400 V (AC-3e/AC-3), this contactor is built to manage heavy electrical loads efficiently and safely, making it ideal for motor control in traction systems.
• Integrated Surge Protection: The built-in varistor provides essential protection against voltage spikes and transients, extending the lifespan of both the contactor and connected equipment.
• Solid-State Operating Mechanism: This advanced mechanism ensures reliable, low-wear operation and a long mechanical life, reducing maintenance needs and improving system uptime.
• Dual Terminal System: The combination of secure screw terminals for the main power circuit and user-friendly spring-loaded terminals for control wiring simplifies installation, ensures a secure connection, and reduces wiring time.
• Compact Frame Size S2: Despite its high capacity, the S2 frame size offers a space-saving design, allowing for compact and efficient panel layouts.
• Auxiliary Contacts (1 NO + 1 NC): The integrated auxiliary contacts provide flexible options for status signaling and interlocking, enhancing control system functionality.
• Wide Control Voltage Range: The control voltage of 72 V DC with a tolerance of 0.7-1.25* Uc provides adaptability to a variety of DC power systems.

Function

The Siemens 3RT2036-3XJ40-0LA2 functions as a critical component in electric motor control systems, specifically within traction and mobile applications such as electric vehicles, conveyor systems, and industrial machinery. It acts as a primary switching device, enabling the remote control of motors and other high-power loads. Its robust design ensures reliable performance in challenging environments, while its integrated features simplify installation and maintenance.

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