Siemens SIRIUS 3RT2045-1CL24-3MA0 Power Contactor AC-3e/AC-3, 80A, 37kW Original Brand New

Overview

The Siemens SIRIUS 3RT2045-1CL24-3MA0 is a high-performance power contactor designed for reliable switching of motors and other electrical loads. This 3-pole contactor is rated for AC-3e/AC-3 operation, handling up to 80 A and 37 kW at 400 V. Its compact S3 size makes it suitable for a wide range of industrial applications.

Key Features

• High Power Rating: Capable of handling up to 80 A and 37 kW at 400 V.
• Versatile AC-3e/AC-3 Operation: Ideal for switching motors and general inductive loads.
• Integrated Varistor: Protects the contactor and control circuit from voltage surges.
• Dual Auxiliary Contacts: Includes 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contacts for flexible control and signaling.
• Screw Terminals: Ensures secure and reliable electrical connections.
• S3 Size: Compact design for space-saving installation.
• Captive Auxiliary Switch: Prevents loss of components during installation and maintenance.
• 230 V AC Coil: Standard control voltage for easy integration into existing systems.

Benefit

• Increased Reliability: The integrated varistor protects against damaging voltage spikes, extending the lifespan of the contactor.
• Enhanced Safety: The captive auxiliary switch ensures proper assembly and reliable operation.
• Easy Installation: Screw terminals and a compact design simplify the installation process.
• Flexible Control: The 2 NO + 2 NC auxiliary contacts allow for complex control schemes and status monitoring.
• Cost-Effective Solution: A durable and reliable component that reduces downtime and maintenance costs.

Function

The Siemens 3RT2045-1CL24-3MA0 functions as a primary switching device in motor control circuits, automation systems, and other industrial applications. It is used to:

• Switch AC motors on and off.
• Control heating elements and lighting systems.
• Isolate electrical circuits.
• Provide remote control of power circuits.

Technical Specification

• Product Number: 3RT2045-1CL24-3MA0
• Product Type: Power Contactor
• Series: Siemens SIRIUS 3RT2
• Rated Current (AC-3e/AC-3): 80 A
• Rated Power (AC-3e/AC-3): 37 kW at 400 V
• Number of Poles: 3
• Control Voltage: 230 V AC, 50/60 Hz
• Auxiliary Contacts: 2 NO + 2 NC
• Surge Suppression: Plugged-in varistor
• Terminals: Screw terminal
• Size: S3
• Auxiliary Switch: Captive

Application

• Motor control panels
• Industrial machinery
• Building automation
• HVAC systems
• Pumps and fans
• Conveyor systems

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