Siemens 3RT2336-3XB40-4LA2 SIRIUS Traction Contactor, 51A, 22kW, 4-Pole, 24V DC, S2 Frame Size Original Brand New

Siemens 3RT2336-3XB40-4LA2 SIRIUS Traction Contactor – Engineered for Demanding Railway Application

The Siemens 3RT2336-3XB40-4LA2 is a high-performance SIRIUS traction contactor built to deliver reliable and robust operation in the most challenging environments, particularly railway applications. This 4-pole contactor is rated for AC-3e/AC-3 switching at 51 A and 22 kW at 400 V, making it ideal for controlling motors and other inductive loads.

Key Features and Benefit

• Railway Approved: Compliant with IEC 60077-2 and EN 50155 standards, in addition to IEC 60947-4-1, ensuring suitability for increased demands in railway systems.
• Extended Operating Range: Features a solid-state DC operating mechanism with an impressive operating range of 0.7 to 1.25 * Uc across a wide temperature spectrum from -40 to +70 °C.
• High Performance: With a 51 A current rating and 22 kW power capability at 400 V, this contactor offers robust performance for demanding industrial and mobile applications.
• Integrated Varistor: Equipped with an integrated varistor for effective coil damping, providing protection against overvoltage and enhancing the longevity of the control circuit.
• Versatile Auxiliary Contacts: Includes 1 NO + 1 NC auxiliary contacts to support various control and signaling functions.
• Flexible Connection Options: Features screw terminals for the main circuit and spring-loaded terminals for the control and auxiliary circuit, offering secure, vibration-resistant, and maintenance-free connections, crucial for railway environments.
• Compact S2 Frame Size: The optimized design in frame size S2 allows for efficient space utilization within control panels.
• Enhanced Durability: Engineered for increased resistance to mechanical oscillations and vibrations, ensuring reliable operation under tough conditions.
• Side-by-Side Mounting: Permissible for side-by-side mounting at ambient temperatures up to 70 °C, offering flexible installation options.

Application Versatility

Beyond standard industrial applications, the Siemens 3RT2336-3XB40-4LA2 traction contactor excels in situations requiring:

• Extended temperature range operations.
• Broad operating range for contactor mechanisms.
• High resistance to mechanical shocks and vibrations.

Protection and Safety

The contactor is designed with consideration for comprehensive protection:

• Short-circuit and overload protection for main, auxiliary, and control supply voltage connections (consult technical product data sheet for detailed recommendations).
• Integrated coil damping (varistor) for overvoltage protection at the control supply voltage connection.