Siemens 3RT2024-1BF44 Contactor, 12A, 5.5kW, 110V DC, 2NO+2NC, S0 Original Brand New

Overview

The Siemens 3RT2024-1BF44 is a high-performance, 3-pole Power Contactor from the renowned SIRIUS 3RT2 innovation series. Engineered for robust motor control applications, this device is rated for $12\text{ A}$ (AC-3e/AC-3) and a maximum operational power of $5.5\text{ kW}$ at $400\text{ V}$. It features a reliable $110\text{ V DC}$ control coil for stable operation and is built in the compact Size S0 frame. This contactor is part of the modular SIRIUS system, offering optimal coordination with other components like overload relays and circuit breakers.

Key Specifications & Features

• Product ID: Siemens 3RT2024-1BF44
• Contactor Type: Power Contactor for Motor Switching
• Product Series: SIRIUS 3RT2
• Performance Rating (AC-3e/AC-3): $12\text{ A}$, $5.5\text{ kW}/400\text{ V}$
• Poles: 3-pole main circuit
• Control Coil Voltage: $110\text{ V DC}$
• Auxiliary Contacts: Integrated 2 NO + 2 NC auxiliary switch block (removable)
• Connection Type: Screw terminals (Main and Auxiliary Circuits)
• Frame Size: S0
• Standards: IE3/IE4-ready, IEC, UL/CSA approved for worldwide use.

Benefit

• High Reliability: Part of the SIRIUS modular system, ensuring high contact reliability and a long mechanical service life.
• Space-Saving Design: The compact Size S0 design allows for optimal space utilization in control cabinets.
• Versatile Integration: Fully compatible with a comprehensive range of SIRIUS accessories (e.g., thermal overloads, auxiliary switch blocks) for building complete load feeders.
• Easy Maintenance & Wiring: Features a removable auxiliary switch block and robust screw terminals, simplifying installation and wiring.
• Global Standard: Approved for worldwide use (IEC and UL/CSA), making it suitable for international projects.

Function / Application

The 3RT2024-1BF44 Contactor is primarily used for switching 3-phase AC motors and resistive loads. It is the ideal component for use in motor starters, motor control centers (MCCs), and other industrial automation applications that require:

1. Remote ON/OFF control of electrical loads.
2. High operational frequency and durability.
3. Integration into modern control systems, particularly those utilizing $110\text{ V DC}$ control logic.

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