Siemens 3RT2024-1BB40

Siemens 3RT2024-1BB40 | 3-Pole Power Contactor – 12A, 24V DC Coil, 1NO+1NC Auxiliary, Size S0

Overview

The Siemens 3RT2024-1BB40 is a 3-pole SIRIUS power contactor designed for AC-3 motor switching applications up to 12A. This model features a 24V DC coil and comes equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact. It is compact, reliable, and ideal for use in control panels and automation systems requiring consistent switching performance.

Key Features

• Rated Operational Current (AC-3): 12A @ 400V

• Rated Power: Up to 5.5 kW (AC-3, 400V)

• Coil Voltage: 24V DC

• Auxiliary Contacts: 1 NO + 1 NC built-in

• Number of Poles: 3 main contacts

• Size: S0 (compact format)

• Mounting: DIN rail or panel mount

• Protection Class: IP20 (when installed in enclosure)

Technical Specifications

• Part Number: 3RT2024-1BB40

• Series: SIRIUS 3RT20

• Contact Type: Screw terminals

• Electrical Durability: Up to 10 million operations

• Ambient Temperature Range: –25°C to +60°C

• Standards: IEC 60947-4-1, CE, UL, cULus

• Dimensions (HxWxD): Approx. 92 x 54 x 115.5 mm

• Weight: Approx. 0.6 kg

Applications

• Motor starters and reversing contactors

• Conveyor and pump control

• HVAC and fan applications

• Control panels for automation systems

• General-purpose switching and control

Why Choose the 3RT2024-1BB40?

• Compact Design: Space-saving S0 frame for small enclosures

• Integrated Aux Contacts: Standard 1NO + 1NC included

• Reliable Switching: Engineered for long mechanical and electrical life

• Universal Mounting: Easy DIN rail or screw panel installation

• Siemens Quality: Trusted performance for industrial control applications

Order Now

The Siemens 3RT2024-1BB40 power contactor is in stock and ready for global shipping. Contact us for pricing, lead time, or compatibility with your motor starter assembly.