Siemens 3RT2024-2KB40 Power Contactor 12A, 5.5kW, 24V DC, S0 Frame with Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT2024-2KB40 is a high-performance power contactor designed for reliable and efficient switching of electrical loads in industrial automation and control systems. This 3-pole contactor is suitable for AC-3e/AC-3 applications, handling a rated current of 12 A and a power output of 5.5 kW at 400 V.

Its compact S0 frame size makes it ideal for space-constrained installations. The integrated 24 V DC coil with a wide control voltage range (0.7-1.25* Uc) and built-in varistor ensures robust and reliable operation, even with PLC outputs.

Key Features & Function

• AC-3e/AC-3 Rated: Specifically designed for switching squirrel-cage motors, ensuring safe and effective operation.
• High Power Handling: Capable of controlling motors up to 5.5 kW at 400 V, making it suitable for a wide range of industrial applications.
• Efficient DC Coil: The 24 V DC control voltage is ideal for modern control systems, offering low power consumption and reliable switching.
• Integrated Varistor: The plugged-in varistor provides surge protection for the coil, extending its lifespan and protecting connected control circuits, especially when used with sensitive PLC outputs.
• Auxiliary Contacts: Includes one normally open (1 NO) and one normally closed (1 NC) auxiliary contact, providing flexibility for signaling and interlocking functions within your control circuit.
• Spring-Loaded Terminals: This innovative terminal technology ensures fast, secure, and vibration-resistant connections, reducing installation time and maintenance needs.
• Compact S0 Frame: The small footprint of the S0 frame size allows for high-density mounting in control cabinets.
• PLC Compatibility: The contactor’s design, particularly the 24V DC coil with varistor, makes it perfectly suited for direct control by PLC outputs.

Benefit

• Reliability: Built with Siemens’ renowned quality and engineering, the 3RT2024-2KB40 offers exceptional durability and a long service life.
• Ease of Installation: The spring-loaded terminals simplify wiring, saving time and labor costs.
• Space-Saving Design: Its compact S0 frame is perfect for optimizing space in control panels and machinery.
• Enhanced Circuit Protection: The integrated varistor safeguards the contactor and your control system from voltage spikes.
• Versatile Application: Ideal for motor control, resistive load switching, and various automation tasks.

Technical Specification

• Product Number: 3RT2024-2KB40
• Rated Current (AC-3e/AC-3): 12 A
• Rated Power (400 V): 5.5 kW
• Number of Poles: 3
• Control Voltage: 24 V DC
• Control Voltage Range: 0.7 – 1.25 * Uc (Nominal Control Voltage)
• Auxiliary Contacts: 1 NO + 1 NC
• Terminal Type: Spring-loaded terminal
• Frame Size: S0
• Features: Integrated varistor, suitable for PLC outputs
• Note: No additional auxiliary switches can be added.

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