Siemens 3RT2045-1AL20 SIRIUS Power Contactor, 80A, 37kW (400V), 230V AC, S3 Screw Terminal Original Brand New

Overview

The Siemens 3RT2045-1AL20 is a high-performance SIRIUS power contactor designed for reliable switching of motors and electrical loads. Part of the renowned SIRIUS 3RT2 series, this 3-pole contactor is rated for AC-3e/AC-3 operation, handling a substantial 80 A current and delivering 37 kW of power at 400 V. Its robust design and durable construction make it an ideal choice for a wide range of industrial applications, from machine building to process automation.

This model features a 230 V AC, 50/60 Hz operating coil, ensuring compatibility with standard power systems. It is equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts, providing essential feedback and control functions for complex circuits. The screw terminal connections offer a secure and straightforward method for wiring, ensuring a reliable and stable connection. With its compact Size S3 form factor, the 3RT2045-1AL20 is easy to integrate into existing control panels and electrical cabinets, saving valuable space.

Key Features & Benefit

• High Performance & Reliability: With an 80 A current rating and 37 kW power capacity, this contactor is built to handle demanding industrial loads, ensuring long-term operational reliability.
• Versatile Application: Suitable for a wide range of motor and load control applications in various industries. The AC-3e/AC-3 classification ensures compatibility with high-efficiency motors.
• Integrated Auxiliary Contacts: The built-in 1 NO + 1 NC auxiliary contacts simplify wiring and reduce the need for external components, saving time and cost.
• Easy & Secure Wiring: The robust screw terminals provide a simple and secure connection, minimizing installation time and reducing the risk of wiring errors.
• Space-Saving Design: As a Size S3 contactor, it offers a high power-to-size ratio, allowing for more efficient use of panel space.
• Global Standard Compatibility: The 230 V AC coil and 50/60 Hz frequency ensure compatibility with most international power grids.

Technical Specification

• Product Type: Power Contactor
• Manufacturer: Siemens
• Series: SIRIUS 3RT2
• Product Number: 3RT2045-1AL20
• Poles: 3-pole
• Operational Current (AC-3e/AC-3): 80 A
• Rated Power: 37 kW at 400 V
• Operating Voltage of Coil: 230 V AC, 50/60 Hz
• Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
• Connection Type: Screw Terminal
• Size: S3
• Product Life: Mechanical and electrical longevity for extended service life.
• Certifications: Meets key international standards for safety and performance (e.g., UL, CCC, CE).

Application

• Motor control in industrial machinery
• Heating and lighting systems
• Pump and compressor control
• Ventilation systems
• Process automation and control panels
• Machine building and equipment manufacturing

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