Siemens SIRIUS 3RT2026-1BG44 Power Contactor, 25A, 11kW, 125V DC Coil, Size S0, 3-Pole, 2 NO + 2 NC Aux Contact Original Brand New

Overview: Siemens SIRIUS 3RT2026-1BG44 Power Contactor

The Siemens 3RT2026-1BG44 is a robust and compact power contactor from the globally recognized SIRIUS 3RT2 series, specifically engineered for switching motors and other resistive loads. As a fundamental component in industrial automation and motor control, this 3-pole contactor is rated for $25\text{ A}$ (AC-3e/AC-3) and a power rating of $11\text{ kW}$ at $400\text{ V}$. Its compact size S0 design ensures efficient use of panel space without compromising performance or reliability.

Key Specifications & Features

• Product ID: 3RT2026-1BG44
• Product Type: Power Contactor / Motor Contactor
• Contactor Series: SIRIUS 3RT2
• Size: S0 (Compact Design)
• Main Poles: 3-Pole
• Operating Current (AC-3e/AC-3): $25\text{ A}$
• Motor Power Rating (AC-3): $11\text{ kW}$ at $400\text{ V}$
• Control Coil Voltage: $125\text{ V DC}$
• Auxiliary Contacts: Integrated $2\text{ NO}+2\text{ NC}$ (Normally Open + Normally Closed)
• Terminals: Secure Screw Terminal Connection
• Auxiliary Switch: Removable Auxiliary Switch Block

Benefit

1. High Reliability: Part of the SIRIUS modular system, these contactors are known for high contact reliability and a long mechanical service life, typically up to 10 million operating cycles.
2. Space-Saving Design: The compact Size S0 allows for higher density wiring and reduced cabinet size, a critical advantage in modern industrial panels.
3. Versatile Control: The $125\text{ V DC}$ coil is ideal for DC control circuits and is equipped with a suppressor diode for enhanced coil protection and extended lifespan.
4. Integrated Signaling: The pre-assembled $2\text{ NO}+2\text{ NC}$ auxiliary contacts simplify wiring for status feedback, control interlocking, and signaling applications.
5. Easy Installation: Features screw terminals for reliable wiring and is designed for quick mounting on a $35\text{ mm}$ DIN rail.
6. Global Compliance: The SIRIUS 3RT2 series is internationally approved (including IEC and UL/CSA), making it suitable for global applications.

Function & Application

The 3RT2026-1BG44 functions as a high-performance electrical switch, controlled by the $125\text{ V DC}$ coil. When the coil is energized, the main contacts close, connecting power to a load, typically a 3-phase electric motor. The auxiliary contacts simultaneously change state, providing feedback to a PLC or control circuit.

This contactor is primarily used for Direct On Line (DOL) starting of motors up to $11\text{ kW}$. It is essential for applications in:

• Industrial machinery control
• Pump and fan motor operation
• HVAC systems
• Conveyor systems
• Machine tools and general automation systems

For more of our high-quality industrial automation products and contactors, visit turll today!