Siemens 3RT2045-3NB30-0CC0 Power Contactor, S3, 80A, 37kW, 20-33V AC/DC, Spring-Loaded/Screw Terminal Original Brand New

Overview

The Siemens 3RT2045-3NB30-0CC0 is a high-performance power contactor from the SIRIUS series, designed for controlling electric motors and other loads up to 80 A. This robust S3 size contactor offers reliable switching in demanding industrial environments.

It is engineered with a wide operating voltage range of 20-33V AC/DC, making it highly versatile for various control systems. Its compact design and dual-terminal options (screw and spring-loaded) simplify installation and wiring, reducing setup time.

Key Benefit

• Versatile and Efficient: Handles high current loads up to 80A and motor power up to 37 kW, suitable for a wide range of industrial applications.
• Flexible Control: The 20-33V AC/DC control voltage range allows for integration into diverse power and control systems, reducing the need for multiple parts.
• Enhanced Reliability: An integrated varistor protects the coil from voltage spikes, extending the product’s lifespan and ensuring stable operation.
• Convenient Wiring: Features both screw terminals for the main circuit and spring-loaded terminals for the control and auxiliary circuits, providing secure, fast, and vibration-resistant connections.
• Communication-Capable: Supports advanced system integration and monitoring, crucial for modern, data-driven industrial processes.
• Space-Saving Design: The compact size S3 form factor allows for efficient use of panel space.

Technical Function

• Product Type: Power Contactor (AC-3e/AC-3)
• Product Number: 3RT2045-3NB30-0CC0
• Current Rating (AC-3e/AC-3): 80 A
• Motor Power Rating: 37 kW at 400 V
• Poles: 3-pole
• Control Voltage: 20-33 V AC/DC (50/60 Hz)
• Integrated Varistor: Yes (for surge protection)
• Auxiliary Contacts: 1 NO + 1 NC
• Main Circuit Connection: Screw Terminal
• Control/Auxiliary Circuit Connection: Spring-Loaded Terminal
• Size: S3
• Communication: Communication-capable

Application

The Siemens 3RT2045-3NB30-0CC0 is ideal for use in:

• Motor control and protection
• Industrial automation systems
• Switching resistive and inductive loads
• HVAC systems
• Pump and fan control
• Machine building and panel manufacturing

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