Siemens 3RT7026-1AH05 SIRIUS Contactor AC-3, 25A/11kW, 48V AC Coil, Size S0, Screw Terminal Original Brand New

Overview

The Siemens 3RT7026-1AH05 is a high-performance SIRIUS series power contactor designed for robust and reliable switching of motors and other electrical loads. This compact and efficient device is a crucial component in industrial automation and control systems. Featuring a 48V AC coil, it is specifically engineered for applications requiring this standard control voltage. The Size S0 form factor ensures it is space-saving without compromising on performance.

Key Features & Benefit

• High Switching Capacity: Rated for AC-3 applications at 25A and 11kW at 400V, making it suitable for a wide range of standard motor control tasks.
• Reliable Performance: Part of the trusted Siemens SIRIUS family, known for its long service life, durability, and consistent operation in demanding industrial environments.
• Versatile Auxiliary Contacts: Comes with integrated 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts, allowing for flexible integration into control circuits for status signaling and interlocking.
• Easy & Secure Wiring: The screw terminals provide a secure and reliable connection, simplifying installation and maintenance.
• Compact Design (Size S0): Optimized for space efficiency in control panels and electrical cabinets, helping to reduce the overall footprint of your system.
• Global Standards Compliance: Adheres to international standards, ensuring it can be used in various applications worldwide.

Function

The Siemens 3RT7026-1AH05 contactor’s primary function is to safely and efficiently switch an electrical circuit on and off. When the 48V AC coil is energized, it generates a magnetic field that pulls the main contacts closed, allowing current to flow to the connected load (e.g., a motor). When the coil is de-energized, the contacts open, interrupting the power. The integrated auxiliary contacts change state in unison with the main contacts, providing signals to the control system.

Technical Specification

• Product: Contactor, AC-3
• Product Number: 3RT7026-1AH05
• Manufacturer: Siemens
• Series: SIRIUS
• Current Rating (AC-3): 25 A
• Power Rating (AC-3, 400V): 11 kW
• Coil Voltage: 48V AC, 50 Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Size: S0
• Terminals: Screw Terminals

Application

• Motor control for pumps, fans, conveyors, and compressors
• Switching of heating elements and lighting systems
• Control panel building and industrial machinery
• Automation and process control systems

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