Siemens 3RT2045-3SF30 SIRIUS Power Contactor, 80A, 37kW (400V), 3-Pole, AC/DC, Spring-Loaded Terminals Original Brand New

Overview

The Siemens 3RT2045-3SF30 is a high-performance SIRIUS power contactor designed for industrial control applications. This 3-pole contactor is rated for 80 A and is ideal for switching motors up to 37 kW at 400 V. Its compact Size S3 design, combined with robust features like an integrated varistor and F-PLC-IN interface, makes it a reliable and versatile component for automation systems. The product features a convenient combination of screw terminals for the main circuit and spring-loaded terminals for the control and auxiliary circuits, ensuring easy and secure wiring.

Key Benefit

• Reliable Motor Switching: Rated for AC-3e/AC-3 applications, it provides dependable control for motors up to 37 kW.
• Space-Saving Design: The compact Size S3 footprint allows for efficient use of panel space.
• Flexible Control: The wide voltage range of the control coil (83-150 V AC/DC) offers flexibility in different power systems.
• Enhanced Protection: An integrated varistor protects the control coil against voltage spikes, extending the product's lifespan.
• Secure & Easy Wiring: The combination of screw terminals for the main circuit and spring-loaded terminals for control circuits ensures a fast, vibration-proof, and maintenance-free connection.
• Seamless PLC Integration: The F-PLC-IN interface allows for direct and easy connection to a fail-safe PLC, simplifying machine safety circuits.

Function

• Motor Switching: Controls the flow of power to motors and other electrical loads in industrial environments.
• Remote Operation: Can be operated remotely via the control coil, integrating into automated processes.
• Overload Protection Integration: Designed to work seamlessly with thermal overload relays (sold separately) for comprehensive motor protection.
• Auxiliary Signaling: The 1 NC auxiliary contact provides feedback on the contactor's status to the control system.

Technical Specification

• Product Number: 3RT2045-3SF30
• Product Type: Power Contactor
• Series: SIRIUS 3RT
• Number of Poles: 3-pole
• Rated Operational Current (Ie): 80 A (at 40 °C, AC-3e/AC-3)
• Rated Operational Power (Pe): 37 kW (at 400 V, AC-3e/AC-3)
• Control Supply Voltage (Us): 83-150 V AC/DC, 50/60 Hz
• Auxiliary Contacts: 1 NC (Normally Closed)
• Terminal Type (Main Circuit): Screw Terminals
• Terminal Type (Control & Auxiliary): Spring-Loaded Terminals
• Size: S3
• Special Features: Integrated Varistor, F-PLC-IN

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