Siemens SIRIUS 3RT2045-1CP04 Power Contactor AC-3e/AC-3, 80A, 37kW, 230V AC, S3 Original Brand New

Overview

The Siemens SIRIUS 3RT2045-1CP04 is a high-performance power contactor designed for reliable switching of motors and other industrial loads. This robust 3-pole contactor is rated for 80 A (AC-3e/AC-3) and can handle up to 37 kW at 400 V. Its compact S3 size makes it suitable for a wide range of control cabinet installations. Featuring a 230 V AC coil with a built-in varistor for surge protection, it ensures a long service life and high operational reliability. The integrated 2 NO + 2 NC auxiliary contacts provide flexible control and signaling options, while the secure screw terminals allow for easy and dependable wiring.

Key Benefit

• High Performance: Capable of handling significant loads up to 80 A and 37 kW, making it perfect for demanding motor applications.
• Reliable Operation: The integrated varistor protects the coil from voltage spikes, extending the contactor’s lifespan and ensuring consistent performance.
• Versatile Functionality: With 2 NO and 2 NC auxiliary contacts, it offers excellent flexibility for creating complex control circuits and feedback loops.
• Secure & Easy Installation: Screw terminals provide a solid connection, simplifying installation and maintenance.
• Compact Design: The space-saving Size S3 allows for efficient use of control cabinet space.
• Safety and Durability: Part of the globally recognized Siemens SIRIUS family, guaranteeing high quality, reliability, and compliance with international standards.

Function

• Motor Switching: Primarily used for switching three-phase asynchronous motors.
• Load Switching: Suitable for switching various resistive and inductive loads.
• Control Integration: The auxiliary contacts enable interlocking, signaling, and integration into automated control systems (PLCs, relays, etc.).
• Surge Suppression: The built-in varistor protects the coil and surrounding circuitry from destructive voltage surges.

Technical Specification

• Product Number: 3RT2045-1CP04
• Product Series: SIRIUS 3RT2
• Rated Operational Current (AC-3e/AC-3): 80 A
• Rated Power (AC-3e/AC-3): 37 kW at 400 V
• Number of Poles: 3-pole
• Operating Coil Voltage: 230 V AC, 50 Hz
• Auxiliary Contacts: 2 NO + 2 NC
• Connection Type: Screw terminals
• Size: S3
• Special Features: Plugged-in varistor for surge protection

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