Siemens SIRIUS 3RT2027-1AB04 Power Contactor AC-3e/AC-3, 32A, 15kW, 24V AC, 2 NO + 2 NC Aux Contacts, S0 Size, Screw Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2027-1AB04 is a high-performance 3-pole power contactor designed for reliable switching of motors and electrical loads up to 15 kW at 400 V. As part of the SIRIUS modular system, this contactor is engineered for efficiency, durability, and easy integration into various industrial control panels. It features a compact Size S0 frame and a 24 V AC, 50 Hz control voltage, making it a versatile choice for a wide range of applications.

Key Benefit

• High Performance and Reliability: Rated for AC-3e and AC-3 categories, it ensures stable and safe operation for motor control applications, handling inrush currents with ease.
• Versatile Auxiliary Contacts: The built-in 2 NO + 2 NC auxiliary contacts provide flexible signaling and control options, reducing the need for additional components and simplifying wiring.
• Easy Installation and Maintenance: Featuring robust screw terminals, this contactor offers secure and straightforward wiring. The removable auxiliary switch allows for quick and easy replacement or configuration changes.
• Compact Design: The Size S0 form factor saves valuable space within control cabinets, enabling a more compact and efficient panel layout.
• Energy Efficient: Optimized for low power consumption, contributing to reduced energy costs and a more sustainable operation.
• Part of the SIRIUS Modular System: Compatible with a wide range of Siemens SIRIUS accessories, including overload relays, auxiliary contact blocks, and function modules, providing a scalable and future-proof solution.

Function

The Siemens 3RT2027-1AB04 serves as a primary switching device for controlling the flow of electrical power to industrial equipment, particularly electric motors. Its main functions include:

• Motor Switching: Safely switches on and off 3-phase motors.
• Load Switching: Suitable for controlling other resistive and inductive loads in industrial automation.
• Remote Control: Activated by a low-voltage control circuit (24 V AC), allowing for remote and automated operation.
• Status Indication: The integrated auxiliary contacts provide a signal back to the control system, indicating the contactor’s open or closed status.

Technical Specification

• Product Number: 3RT2027-1AB04
• Contactor Type: Power Contactor
• Frame Size: S0
• Number of Poles: 3-pole
• Rated Operating Current (AC-3e/AC-3): 32 A
• Rated Power (AC-3e/AC-3): 15 kW @ 400 V
• Control Voltage: 24 V AC, 50 Hz
• Auxiliary Contacts: 2 NO + 2 NC (Normally Open + Normally Closed)
• Terminals: Screw Terminals
• Auxiliary Switch: Removable
• Series: Siemens SIRIUS 3RT2