Siemens 3RT7045-1AH00 Contactor 3-Pole, AC-3 80A/37kW, 48V AC Coil, Size S3, Screw Terminal Original Brand New

Overview

The Siemens 3RT7045-1AH00 is a high-performance power contactor from the renowned SIRIUS series, designed for robust and reliable switching of motors and other electrical loads. This 3-pole contactor is engineered for AC-3 applications, rated for an impressive 80A at 400V (37kW). Its compact Size S3 frame makes it a space-saving yet powerful solution for a wide range of industrial and commercial control panels. Featuring a 48V AC, 50Hz control coil and secure screw terminals, the 3RT7045-1AH00 ensures seamless integration and dependable operation in demanding environments.

Key Features

• Product Number: 3RT7045-1AH00
• Contactor Type: Power Contactor
• Application: AC-3 switching of squirrel-cage motors
• Number of Poles: 3-pole
• Rated Operational Current (AC-3): 80A
• Rated Power (AC-3): 37 kW at 400V
• Control Coil Voltage: 48V AC, 50Hz
• Size: S3 (Standard)
• Terminal Type: Screw Terminal
• Series: Siemens SIRIUS 3RT

Benefit

• High Performance & Reliability: Built with Siemens’ legendary quality, this contactor offers long-term durability and consistent performance, minimizing downtime and maintenance costs.
• Optimized for Motor Control: Specifically designed for AC-3 applications, it handles the high inrush currents of motor start-ups with ease, protecting your equipment and ensuring smooth operation.
• Space-Efficient Design: The compact Size S3 frame allows for high-density mounting in control cabinets, helping to save valuable panel space without compromising on power.
• Secure & Easy Wiring: The screw terminals provide a strong, vibration-resistant connection, ensuring reliable contact and straightforward installation and maintenance.
• Wide Application Range: Ideal for a variety of industrial applications, including fans, pumps, compressors, and conveyer systems.

Function

The Siemens 3RT7045-1AH00 contactor serves as an electrically-operated switch. When a 48V AC, 50Hz voltage is applied to its coil, it generates an electromagnetic force that pulls the main contacts together. This action completes the circuit, allowing a high-power current (up to 80A) to flow to the connected load, such as a motor. When the control voltage is removed, a spring forces the contacts apart, safely breaking the circuit and de-energizing the load. This functionality allows for remote and automated control of heavy-duty electrical equipment.

For more high-quality electrical and automation products, please visit Turll.