Siemens 3RT2026-2BB44 SIRIUS Power Contactor, 25A, 11kW, 24V DC Coil, Spring-Loaded Terminal, Size S0 Original Brand New

Overview

The Siemens 3RT2026-2BB44 is a high-performance, 3-pole power contactor from the SIRIUS 3RT2 series, expertly engineered for switching motors and other resistive loads. With a compact Size S0 design, this contactor offers a reliable and efficient solution for motor control applications up to 11 kW at 400 V (AC-3/AC-3e). It features a low-power 24 V DC control coil and incorporates spring-loaded terminals for fast, vibration-proof, and maintenance-free wiring. The inclusion of an integrated, pre-assembled 2 NO + 2 NC auxiliary contact block and a removable auxiliary switch provides flexible signaling and control capabilities. This contactor is essential for modern, high-density industrial control panels.

Key Specification

• Product: Power Contactor (Motor Contactor)
• Manufacturer: Siemens
• Series: SIRIUS 3RT2
• Product Number: 3RT2026-2BB44
• Rated Operating Current (AC-3/AC-3e, 400V): 25 A
• Rated Power (AC-3/AC-3e, 400V): 11 kW
• Number of Poles: 3-pole
• Coil Control Voltage: 24 V DC
• Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)
• Connection Type: Spring-loaded terminal
• Size: S0
• Feature: Removable Auxiliary Switch Block

Benefit

• Fast, Reliable Wiring: Spring-loaded terminals significantly reduce wiring time and ensure a secure, long-lasting connection, even in high-vibration environments, lowering installation and maintenance costs.
• High Performance in Compact Size: The Size S0 design offers a high switching capacity of 25 A / 11 kW in a space-saving footprint, ideal for densely packed control cabinets.
• Global Standard Compliance: SIRIUS 3RT2 contactors are approved worldwide (e.g., IEC, UL/CSA), making them suitable for global machinery export and use.
• Enhanced Control & Monitoring: The built-in 2 NO + 2 NC auxiliary contacts provide essential feedback for logic controllers (PLCs) and enable more complex motor control circuits.
• Energy Efficient DC Coil: The 24V DC coil is suitable for common control voltages and typically offers lower power consumption than equivalent AC coils.

Function and Application

The 3RT2026-2BB44 power contactor is designed to electrically switch three-phase motors and other loads up to 11 kW AC-3/AC-3e. It is the core component in Direct On Line (DOL) motor starters and is commonly used in:

• Controlling pumps, fans, and compressors.
• Switching heating, lighting, and ventilation systems.
• Building simple and complex load feeders.
• Integration into automated control systems (PLCs).

For more Siemens SIRIUS products and other industrial control components, visit Turll today!