Siemens 3RT7027-1AG05 Contactor 32A, 15kW, 400V AC, SIRIUS Size S0, Screw Terminal Original Brand New

Overview

The Siemens 3RT7027-1AG05 is a high-performance contactor from the trusted SIRIUS series, designed for demanding industrial applications. This robust and reliable device is engineered for switching and controlling AC motors and other inductive loads up to 15 kW at 400V AC. Its compact Size S0 design saves valuable panel space without compromising on power or functionality. Featuring screw terminals for secure and straightforward wiring, this contactor is the ideal choice for new installations or replacements in various control systems.

Key Features & Specification

• Product Type: Contactor for switching and control of motors
• Model Number: 3RT7027-1AG05
• Manufacturer: Siemens
• Series: SIRIUS
• Operational Current: 32A (AC-3)
• Rated Power: 15 kW at 400V AC
• Control Voltage: 36V AC, 50Hz
• Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC)
• Size: S0 (Standard size for the SIRIUS family)
• Termination Type: Screw terminals for reliable and easy connection
• Operating Ambient Temperature: -25 to +60 °C
• Mounting: Standard DIN rail or screw mounting
• Standards: IEC, EN, and other international standards

Benefit

• High Performance & Reliability: Part of the Siemens SIRIUS family, known for its long service life and dependable operation.
• Space-Saving Design: The compact Size S0 frame allows for high-density panel layouts, reducing overall cabinet size and cost.
• Ease of Installation: Screw terminals offer a secure and simple wiring process, minimizing installation time and effort.
• Versatile Application: Suitable for a wide range of applications, including motor control, lighting, heating, and general-purpose switching.
• Integrated Auxiliary Contacts: The built-in 1NO and 1NC contacts provide flexibility for signaling and interlocking in control circuits, eliminating the need for separate auxiliary contact blocks.
• Global Compliance: Manufactured to meet strict international standards, ensuring compatibility and safety in a variety of industrial environments.

Function

The Siemens 3RT7027-1AG05 contactor acts as an electromechanical switch. When the 36V AC control coil is energized, it creates a magnetic field that pulls the main contacts into a closed position, allowing power to flow to the connected load. When the control voltage is removed, the magnetic field collapses, and a spring returns the contacts to their open position, de-energizing the load. This mechanism allows for remote or automated control of high-power circuits using a low-power signal. The integrated auxiliary contacts change state along with the main contacts, providing status feedback to a PLC or control system.

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