Overview
The Siemens 3RT7026-1AN25 is a high-performance SIRIUS series power contactor designed for robust and reliable switching of three-phase motors and other electrical loads. This contactor is engineered to meet the demanding requirements of industrial applications, providing safe and efficient operation. With a compact size S0 and convenient screw terminals, it offers easy integration and secure connections in a wide range of control and automation systems.
Key Benefit
- High Performance and Reliability: Engineered by Siemens, a global leader in industrial automation, ensuring long-term reliability and performance.
- Space-Saving Design: The compact Size S0 allows for installation in tight spaces, optimizing panel and cabinet layouts.
- Versatile Application: Ideal for switching motors with a rated power of up to 11kW at 400V, as well as for general-purpose AC-3 switching applications.
- Easy Installation: Equipped with user-friendly screw terminals for straightforward and secure wiring.
- Integrated Auxiliary Contacts: Features one normally open (1NO) and one normally closed (1NC) auxiliary contact, providing flexibility for control and signaling circuits.
- Global Compatibility: Designed to operate with a 220V AC coil at 50/60Hz, making it suitable for use in a variety of global electrical standards.
Function
The Siemens 3RT7026-1AN25 contactor's primary function is to remotely switch an electrical power circuit. It is specifically rated for AC-3 applications, which involve the frequent starting and stopping of squirrel-cage motors.
- Power Switching: Connects and disconnects the main power circuit to a connected load, such as an electric motor.
- Motor Control: Serves as a key component in motor starter circuits, enabling remote and automated control of motor operation.
- Safety and Automation: Can be integrated into safety circuits and automated systems, providing a reliable means of control.
- Signaling: The integrated auxiliary contacts (1NO+1NC) provide feedback on the contactor's status (e.g., whether it is energized or de-energized) to a PLC or other control system.
Technical Specification
- Product Number: 3RT7026-1AN25
- Series: SIRIUS
- Product Type: Power Contactor
- Main Poles: 3-pole
- Rated Operating Current (Ie): 25A
- Rated Power (AC-3): 11 kW at 400V
- Coil Voltage: 220V AC, 50/60Hz
- Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
- Size: S0
- Connection Type: Screw Terminals
- Mounting: Snap-on mounting on DIN rail or screw mounting
- Standards: IEC 60947, VDE 0660, UL, CSA
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