Siemens 3RT2317-2XF40-0LA2 SIRIUS ACT Traction Contactor, AC-1, 22A, 400V, 4-Pole, 72-125V DC Solid-State Original Brand New

Overview

The Siemens 3RT2317-2XF40-0LA2 is a high-performance SIRIUS ACT traction contactor specifically engineered for demanding AC-1 applications, particularly within the railway industry. This robust 4-pole contactor is rated for 22 A at 400 V / 40 °C and features a versatile 72-125 V DC solid-state operating mechanism with an extended operating range of 0.7-1.25*Uc. Its design incorporates an integrated varistor for surge protection and spring-loaded terminals, ensuring exceptional resistance to mechanical oscillations and vibrations – critical for mobile applications. As part of the Siemens SIRIUS ACT family, it combines reliability with advanced functionality, making it an ideal choice for challenging environments.

Key Features & Benefit

• Railway Approved (IEC 60077-2, EN 50155): Beyond standard IEC 60947-4-1 compliance, this contactor meets stringent railway specific standards, guaranteeing performance in railway applications.
• Enhanced Reliability in Harsh Environments: Designed for an extended temperature range of -40 to +70 °C, and offering increased resistance to mechanical oscillations and vibrations, it ensures dependable operation where standard contactors might fail.
• Solid-State DC Operating Mechanism: Provides a wide operating range (0.7 to 1.25 x Us) and consistent performance, even under fluctuating control voltages.
• Integrated Varistor: Offers built-in overvoltage protection for the control supply voltage connection, simplifying installation and enhancing device longevity.
• Spring-Loaded Terminals: Contribute significantly to vibration resistance, ensuring secure and stable connections, crucial in applications with constant movement.
• Compact Frame Size S00: Optimizes space within control panels without compromising performance.
• Auxiliary Contacts (1 NO + 1 NC): Provides essential signaling and control capabilities for integrated system operation.
• Flexible Expansion: Compatible with additional front and side-mounted auxiliary switches for expanded control functionalities.

Function

• Switching of Low or Non-Inductive Loads (AC-1): Efficiently controls resistive loads in various industrial and railway applications.
• Reliable Operation in Extended Voltage Ranges: The solid-state operating mechanism maintains consistent performance across a broad DC control voltage spectrum.
• Short-Circuit and Overload Protection Readiness: Designed to integrate seamlessly with suitable external protection measures for main, auxiliary, and control circuits, ensuring system safety and compliance.
• Vibration-Resistant Connections: Spring-loaded terminals provide robust connections that withstand continuous mechanical stress, reducing maintenance and increasing uptime.

Standards Compliance:

• IEC 60947-4-1
• IEC 60077-2
• EN 50155

Application

The Siemens 3RT2317-2XF40-0LA2 contactor is specifically designed for applications requiring high reliability and resistance to harsh environmental conditions, with a primary focus on:

• Railway Systems: Traction control, auxiliary circuits, lighting, heating, and other electrical loads in locomotives, trams, and rail vehicles.
• Industrial Automation: Applications requiring robust contactors in environments with significant vibration, temperature fluctuations, or demanding DC control.
• Mobile Equipment: Any machinery or vehicles where shock and vibration resistance, along with an extended temperature range, are critical.

Protection Recommendations:

For comprehensive system protection, it is essential to consider appropriate measures for short-circuit, overload, and overvoltage. Consult the technical product data sheet and relevant configuration manuals (Digital Configuration Manual for load feeders, Configuration Manual for load feeders) for specific guidelines on protecting main, auxiliary, and control supply connections. The integrated varistor provides overvoltage protection for the control coil.

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