Siemens SIRIUS 3RT2027-2BF44 Power Contactor 32A, 15kW, 110V DC Coil, 3-Pole, Size S0, Spring-Loaded Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2027-2BF44 Power Contactor is a high-performance, compact switching device designed for motor control and industrial automation applications. As part of the SIRIUS 3RT2 family, it offers excellent operational reliability and is engineered for optimal performance in AC-3 and the energy-efficient AC-3e operation classes. This specific model features a powerful 32 Amp current rating, a 15 kW power rating at 400 V, and is controlled by a 110 V DC coil. Its space-saving design (Size S0) and fast, vibration-proof spring-loaded terminals make it ideal for modern control panel installations.

Benefit

• High Performance and Reliability: Rated for both AC-3 and the modern, energy-efficient AC-3e standard, ensuring reliable switching of motors up to 15 kW.
• Fast, Secure Wiring: Spring-loaded terminals (Cage Clamp technology) provide maintenance-free, vibration-proof connections, significantly reducing wiring time and increasing system uptime compared to screw terminals.
• Space-Saving Design: The Size S0 frame is compact, allowing for high-density installation in control cabinets.
• Flexible Integration: Includes a generous 2 NO + 2 NC auxiliary contact configuration and a removable auxiliary switch block for versatile control circuit integration and easy modification.
• Global Standard Compliance: SIRIUS 3RT2 contactors meet major international standards (IEC, UL/CSA, CCC), ensuring worldwide usability.

Function

The 3RT2027-2BF44 contactor is primarily used for switching 3-phase AC motors. It serves as an electromagnetic switch to remotely control the flow of electrical power to the motor, enabling or interrupting operation in industrial machinery, pumps, fans, and conveyor systems. The integrated auxiliary contacts provide feedback to the control system (e.g., PLC or relays) about the contactor’s switching status.

Application

• Motor Control and Protection
• Industrial Machinery (Pumps, Compressors, Fans)
• Heating and Lighting Circuits
• Automated Control Systems

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