Siemens SIRIUS 3RT7045-1AM00 Contactor, 3-Pole, AC-3 80A/37kW, 220V AC Coil, Size S3 Screw Terminals Original Brand New

Overview: Siemens 3RT7045-1AM00 Contactor – High-Performance Motor Control

The Siemens 3RT7045-1AM00 is a high-performance 3-pole contactor from the trusted SIRIUS industrial controls family. Designed for robust motor control applications, this Size S3 contactor is engineered to handle demanding AC-3 loads up to 80A (at 400V) and 37kW. Its durable construction and reliable operation make it an essential component for a wide range of industrial and commercial setups, from pumps and fans to conveyors and machinery.

Key Features & Specification

• Product Number: Siemens 3RT7045-1AM00
• Product Type: Contactor
• Application: AC-3 motor switching
• Poles: 3-pole
• Rated Current (AC-3): 80A at 400V
• Rated Power (AC-3): 37kW at 400V
• Coil Voltage: 220V AC, 50 Hz
• Frame Size: S3
• Terminals: Screw terminals for secure and easy wiring
• Family: Siemens SIRIUS 3RT70 series

Benefit

• Exceptional Reliability: Part of the Siemens SIRIUS range, known for its longevity and consistent performance in harsh industrial environments.
• Energy Efficiency: Optimized design minimizes power consumption during operation, contributing to overall energy savings.
• Robust & Safe: Built-in surge suppression and a rugged housing ensure maximum protection for both the contactor and the connected equipment.
• Simple Installation: The standard Size S3 form factor and accessible screw terminals allow for quick and straightforward installation and maintenance.
• Wide Application: Suitable for a variety of industrial motor control tasks, including switching AC motors, resistive loads, and power factor correction.

Function

The Siemens 3RT7045-1AM00 contactor functions as a robust electromagnetic switch. When the 220V AC control coil is energized, it closes the main power contacts, allowing current to flow to the connected motor. When the coil is de-energized, the contacts open, safely interrupting the power supply. This makes it an ideal component for creating motor starters, control panels, and automation systems, providing reliable ON/OFF switching and protection against electrical faults.

Application

This contactor is perfect for use in:

• Industrial machinery
• Pumps and compressors
• HVAC systems
• Conveyor systems
• Ventilation fans
• General power distribution

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