Siemens 3RT7026-1AG05 Contactor AC-3, 25A/11kW, Size S0, Screw Terminal Original Brand New

Overview

The Siemens 3RT7026-1AG05 is a high-performance SIRIUS series power contactor, engineered for demanding industrial motor control and switching applications. This size S0 contactor is built for reliability and efficiency, rated for AC-3 applications up to 25A and 11kW at 400V. Its compact design and robust construction make it a top choice for a wide range of machinery and control panels. Featuring a 36V AC 50Hz coil and equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts, this contactor offers versatile functionality. The integrated screw terminals ensure a secure and straightforward electrical connection, saving time during installation.

Key Features & Benefit

• High Performance: Rated for AC-3 switching applications, capable of handling up to 25A and 11kW at 400V, ensuring reliable motor control.
• Efficient Operation: Features a low-power 36V AC 50Hz coil, reducing energy consumption and operating costs.
• Integrated Auxiliary Contacts: The built-in 1NO and 1NC contacts provide additional control options for interlocking circuits, signaling, and system feedback.
• Robust & Compact Design: Part of the trusted Siemens SIRIUS series, its durable construction and compact size (S0) allow for space-saving installations in control cabinets.
• Easy Installation: The screw terminals provide a simple and secure method for wiring, minimizing installation time and effort.
• Safety & Reliability: Manufactured to strict quality standards, the 3RT7026-1AG05 ensures long-term performance and enhanced safety in industrial environments.

Technical Specification

• Product Number: 3RT7026-1AG05
• Product Series: SIRIUS
• Contactor Type: Power Contactor
• Rated Operational Current (Ie): 25A (at AC-3, 400V)
• Rated Operational Power (Pe): 11kW (at AC-3, 400V)
• Rated Insulation Voltage (Ui): 690V
• Coil Voltage: 36V AC, 50Hz
• Auxiliary Contacts: 1NO + 1NC
• Size: S0
• Terminal Type: Screw Terminal
• Mounting: Screw and Snap-on Mount on DIN rail
• Ambient Temperature: -25 to +60 °C

Function

The Siemens 3RT7026-1AG05 serves as an electro-mechanical switch for controlling electrical power to a load, typically an electric motor. When the 36V AC coil is energized, it closes the main power contacts, allowing current to flow to the motor. The auxiliary contacts change their state simultaneously (the NO contact closes and the NC contact opens), which can be used for control circuit logic, signaling, or interlocking with other components to ensure safe operation.

Application

• Industrial motor control for pumps, fans, and compressors.
• Switching resistive loads like heating elements and lighting.
• Used in machine tools, conveyor systems, and packaging machinery.
• Integration into automation and control panels.

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