Siemens 3RT2045-1NB30-0CC0 Power Contactor, 80A, 37kW (400V), AC/DC 20-33V, Screw Terminal, Size S3, Communication-Capable Original Brand New

Overview

The Siemens 3RT2045-1NB30-0CC0 is a high-performance SIRIUS industrial power contactor designed for reliable and efficient switching of three-phase motors and other electrical loads. As part of the SIRIUS 3RT2 series, this size S3 contactor is engineered for robust performance in demanding industrial environments.

It handles a rated operational current of 80 A and is suitable for motor control up to 37 kW at 400 V (AC-3e/AC-3). The integrated varistor provides superior surge protection for the coil, enhancing its longevity and reliability. Its communication-capable design allows for seamless integration into modern industrial networks, offering a future-proof solution for your automation needs.

Key Benefit

• High Performance: Capable of switching motors up to 37 kW at 400 V, making it suitable for a wide range of heavy-duty applications.
• Enhanced Reliability: The integrated varistor protects the coil from voltage spikes and surges, extending the product’s lifespan and reducing downtime.
• Versatile Control: Features a broad control supply voltage range of 20-33 V AC/DC, providing flexibility for various control systems.
• Easy Integration: The communication-capable interface allows for seamless connection to industrial networks, enabling remote monitoring and control.
• Simple Installation: Equipped with robust screw terminals, ensuring a secure and reliable electrical connection. The Size S3 form factor is standardized for easy mounting.
• Comprehensive Auxiliary Contacts: Includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts, providing immediate feedback on the contactor’s status for interlocking and control circuits.

Technical Specifications / Function

• Product Number: 3RT2045-1NB30-0CC0
• Product Type: Power Contactor (SIRIUS 3RT2)
• Rated Operational Current (Ie): 80 A
• Rated Operational Power (Pe): 37 kW at 400 V (AC-3e/AC-3)
• Number of Poles: 3-pole
• Control Supply Voltage (Us): 20 – 33 V AC/DC, 50/60 Hz
• Coil Protection: Integrated varistor
• Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
• Terminal Type: Screw Terminal
• Size: S3
• Communication: Communication-capable (requires an optional communication module)
• Mounting: Standard DIN rail or screw mounting
• Application: Ideal for switching of squirrel-cage motors and general resistive loads in industrial and commercial settings.

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