Siemens 3RT2037-3XB40-0LA2 Traction Contactor 65A, 30kW (400V), 24V DC, Spring-Loaded Terminals, Size S2 Original Brand New

Overview: Siemens 3RT2037-3XB40-0LA2 Traction Contactor

The Siemens 3RT2037-3XB40-0LA2 is a high-performance SIRIUS 3RT2 series traction contactor engineered for robust and reliable operation in a wide range of industrial applications. Designed to meet the stringent demands of AC-3e/AC-3 switching, this 3-pole contactor is rated for 65 A and is capable of handling motor loads up to 30 kW at 400 V.

Its unique solid-state operating mechanism with an integrated varistor ensures precise control and protects against voltage spikes, guaranteeing a long service life. The contactor features a flexible dual-terminal system: screw terminals for the main circuit and convenient spring-loaded terminals for the control and auxiliary circuits. This combination simplifies installation and provides a secure connection.

Key Features & Specification

• Product Number: 3RT2037-3XB40-0LA2
• Contactor Type: Traction Contactor
• Operating Voltage (Control): 24 V DC (wide range 0.7 to 1.25 * Uc)
• Current Rating (AC-3e/AC-3): 65 A
• Motor Power Rating: 30 kW at 400 V
• Poles: 3-pole
• Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
• Operating Mechanism: Solid-state with integrated varistor
• Main Circuit Connection: Screw terminals
• Control/Auxiliary Circuit Connection: Spring-loaded terminals
• Frame Size: S2
• Product Family: SIRIUS 3RT2

Benefit

• Reliable Performance: Engineered for high-stress applications, ensuring long-term reliability.
• Enhanced Protection: The integrated varistor safeguards the coil and control system from damaging voltage surges.
• Simplified Installation: The combination of screw and spring-loaded terminals offers flexibility and ease of wiring.
• Space-Saving Design: Its compact S2 frame size allows for efficient use of panel space.
• Versatile Application: Suitable for motor control, switching resistive loads, and general automation tasks.
• Global Standard: As part of the Siemens SIRIUS family, it meets international standards for quality and safety.

Function

• Motor Control: Safely and efficiently switches electric motors on and off.
• Load Switching: Handles the switching of various resistive and inductive loads.
• Control & Automation: Integrates seamlessly into industrial control systems and machinery.
• Signal Indication: The integrated NO/NC auxiliary contacts provide feedback to PLCs or control systems, indicating the contactor’s status (e.g., open or closed).

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