Siemens 3RT2045-1AP00 SIRIUS Power Contactor, 80A, 37kW, 230V AC Coil, S3 Original Brand New

Overview: SIRIUS 3RT2045-1AP00 Power Contactor

The Siemens 3RT2045-1AP00 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT2 modular system. Engineered for robust motor switching applications, this device is a critical component in low-voltage industrial control systems, offering excellent reliability and long mechanical service life (up to 10 million operating cycles). The size S3 design provides a compact yet powerful solution for switching motors up to 37 kW at 400 V.

Key Product Specifications & Function

This power contactor is specifically designed for AC-3 and AC-3e operation, making it ideal for standard switching of three-phase squirrel-cage motors.

• Product Type: Power Contactor for Motor Switching
• Series/Family: SIRIUS 3RT2 (3RT20)
• Article Number (MPN): 3RT2045-1AP00
• Max Rated Operational Current (Ie​) (AC-3, 400 V): 80 A
• Rated Operational Power (AC-3, 400 V): 37 kW
• Coil Control Voltage (Us​): 230 V AC, 50 Hz
• Main Poles: 3-pole (3 NO main contacts)
• Auxiliary Contacts: Integrated 1 NO (Normally Open) + 1 NC (Normally Closed)
• Terminal Type: Secure Screw Terminals
• Contactor Size: S3
• Certifications: IE3/IE4-ready, IEC, UL/CSA (Worldwide Approval)

Benefits & Features

• Optimal Performance: Rated for heavy-duty motor switching with an 80A operational current and a $37\text{ kW}$ power rating at $400\text{ V}$.
• Modular & Versatile: Part of the comprehensive SIRIUS modular system, allowing for seamless integration with other components like overload relays and circuit breakers to form factory-tested load feeders.
• High Reliability: Features a compact design with high contact reliability and a long mechanical lifespan, reducing maintenance needs.
• Easy Wiring: Equipped with user-friendly screw terminals for simple and secure electrical connections.
• Global Standard: Climate-resistant and approved for worldwide use (IEC and UL/CSA), ensuring compatibility in various industrial environments.

Application

The Siemens 3RT2045-1AP00 is essential for controlling and switching electric motors in a wide range of industrial applications, including:

• Machine Tools
• Pumps and Ventilation Systems
• Conveyor Systems
• Material Handling Equipment
• General Industrial Automation and Control Panels

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