Siemens SIRIUS 3RT2024-1BW40 Power Contactor, 12A, 5.5kW, 48V DC Coil, 3-Pole, Size S0, Screw Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2024-1BW40 is a high-performance, 3-pole power contactor designed for reliable switching of electric motors and other resistive loads. As part of the SIRIUS modular system, it offers a compact design, high contact reliability, and extensive compatibility with other SIRIUS components. This specific model features a 48 V DC coil and is rated for a motor power of 5.5 kW at 400 V (AC-3e/AC-3).

Benefit

• High Performance in a Compact Design: The 3RT2 series is known for its space-saving design, allowing for high-density panel mounting without compromising performance.
• Reliable DC Operation: The $48\text{ V DC}$ coil is equipped for direct current control systems, providing stable and efficient switching.
• Simplified Wiring: Features user-friendly screw terminals for secure, straightforward connection of the main and auxiliary circuits.
• IE3/IE4 Ready: Fully compliant and optimized for use with the latest high-efficiency motors, future-proofing your control system.
• Modular Flexibility: Seamlessly integrates with the SIRIUS modular system, including overload relays (e.g., 3RU2), auxiliary switch blocks, and function modules, simplifying the construction of complete motor feeders.
• Global Standard Compliance: Approved for worldwide use (e.g., IEC and UL/CSA), making it suitable for international projects.

Function and Application

Function: The Siemens 3RT2024-1BW40 is an electromechanical switching device used to control the flow of electrical power to a load, typically a 3-phase electric motor. When the $48\text{ V DC}$ control voltage is applied to the coil, the main contacts close, starting the motor. The integrated $1\text{ NO}+1\text{ NC}$ auxiliary contacts provide feedback or enable interlocking functions within the control circuit.

Typical Applications:

• Motor Control: Switching 3-phase AC motors up to $5.5\text{ kW}$ (7.5 HP at 460V, 3 HP at 230V).
• Industrial Machinery: Used in conveyors, pumps, fans, and various machine tools.
• Resistive Loads: Switching heating elements, lighting systems, and other general resistive loads.
• Automation Systems: Integration into industrial control panels and PLC-controlled systems where $48\text{ V DC}$ control power is used.

Technical Details

The SIRIUS 3RT2 contactors replace the well-proven 3RT1 series. The robust construction ensures a high mechanical and electrical service life. Its size S0 form factor is standard across the series, ensuring compatibility with a wide range of mounting accessories. The AC-3e/AC-3 rating indicates suitability for switching squirrel-cage motors during operation, a key requirement in most industrial motor applications.

For more of our high-quality industrial automation products, including the full Siemens SIRIUS line and complementary motor control devices, visit turll.