Siemens 3RT7026-1AV05 Contactor 25A, 11kW, 400V AC-3, Screw Terminal, SIRIUS Original Brand New

Overview

The Siemens 3RT7026-1AV05 is a high-performance SIRIUS series power contactor designed for reliable switching of motors and other resistive loads. This robust 3-pole contactor is rated for an operational current of 25A for AC-3 applications and is capable of handling motor power up to 11 kW at 400V. Featuring a compact size S0 design, it is an ideal solution for a wide range of industrial automation and control panel applications where space is at a premium. The integrated 1NO (Normally Open) and 1NC (Normally Closed) auxiliary contacts provide enhanced control and signaling flexibility.

Key Features & Specification

• Part Number: 3RT7026-1AV05
• Product Series: SIRIUS
• Type: Power Contactor
• Number of Poles: 3-pole
• Operational Current (AC-3): 25A
• Operational Power (AC-3): 11 kW at 400V
• Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
• Coil Voltage: 400V AC, 50Hz
• Size: S0 (Standard Frame Size)
• Terminal Type: Screw Terminals
• Mounting: Standard rail or screw mounting
• Safety & Compliance: IEC, UL, CSA certified
• Operating Temperature: -25 to +60 °C

Benefit

• High Reliability: The SIRIUS series is known for its exceptional durability and long service life, ensuring dependable performance in demanding industrial environments.
• Space-Saving Design: The compact Size S0 frame allows for efficient use of space within control cabinets, simplifying panel design and reducing overall footprint.
• Versatile Application: Suitable for a broad spectrum of AC-3 applications, including the control of electric motors, lighting systems, and other industrial machinery.
• Easy Installation: Features a user-friendly screw terminal design for quick and secure wiring connections.
• Integrated Auxiliary Contacts: The built-in 1NO and 1NC contacts eliminate the need for an external auxiliary contact block, saving both cost and space.

Function

The Siemens 3RT7026-1AV05 functions as an electrically controlled switch used to turn a power circuit on and off. When the 400V AC coil is energized, it creates a magnetic field that pulls the main contacts closed, allowing current to flow to the connected load. Simultaneously, the auxiliary contacts change state—the NO contact closes and the NC contact opens—providing feedback for control circuits, interlocks, or signaling purposes. De-energizing the coil causes the contacts to return to their original state.

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