Siemens 3RT2026-1BF44 Power Contactor 25A, 11kW, 110V DC Coil, 2 NO + 2 NC Aux Contacts Original Brand New

Overview

The Siemens 3RT2026-1BF44 is a high-performance power contactor from the SIRIUS line, designed for reliable switching of motors and other electrical loads. This robust and compact device, with a size S0 frame, is engineered for demanding industrial environments.

It’s a versatile solution for a wide range of applications, including motor control, lighting, and heating. The 3RT2026-1BF44 offers a unique combination of power, control, and flexibility, thanks to its specific technical features.

Key Features & Technical Specification

• Product Number: 3RT2026-1BF44
• Type: Power Contactor (AC-3e/AC-3)
• Current Rating (AC-3e/AC-3): 25 A
• Power Rating: 11 kW at 400 V
• Number of Poles: 3-pole
• Control Voltage (Coil): 110 V DC
• Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
• Terminal Type: Screw Terminal
• Size: S0 (Standard Siemens size for compact installation)
• Special Feature: Removable auxiliary switch block for easy configuration and maintenance.

Benefit

• High Performance & Reliability: Engineered by Siemens, a leader in industrial automation, this contactor ensures long-term operational reliability and superior performance.
• Versatile Application: Suitable for a wide range of motor and non-motor applications, including pumps, fans, conveyors, and more.
• Efficient Space Utilization: The compact S0 size allows for high-density mounting in control cabinets, saving valuable panel space.
• Easy Installation & Maintenance: Screw terminals provide a secure and straightforward connection, while the removable auxiliary switch simplifies wiring and field maintenance.
• Enhanced Safety: The integrated 2 NO + 2 NC auxiliary contacts allow for complex interlocking and signaling circuits, improving system control and safety.
• DC Coil Efficiency: The 110 V DC coil offers lower power consumption and quieter operation compared to AC coils, making it ideal for sensitive applications.

Function

The Siemens 3RT2026-1BF44 serves as an electrical switch, controlled by the 110 V DC coil. When the coil is energized, the main contacts close, allowing power to flow to the connected load (e.g., a motor). When the coil is de-energized, the contacts open, interrupting the power supply. The auxiliary contacts provide feedback and control signals to other parts of the system, enabling complex control logic, such as indicating motor status (on/off) or preventing simultaneous operation of multiple devices.

Application

• Industrial Motor Control
• HVAC Systems
• Pumps and Pumping Stations
• Conveyor Systems
• Lifting and Hoisting Equipment
• General Industrial Automation

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