Siemens 3RT2045-3NP30 SIRIUS S3 Power Contactor, 80 A, 37 kW, 175-280 V AC/DC Coil, Spring-Loaded Terminals Original Brand New

Overview

The Siemens 3RT2045-3NP30 is a high-performance SIRIUS S3 power contactor designed for reliable switching of motors and other electrical loads. Built for a wide range of industrial applications, this robust 3-pole contactor handles up to 80 A (AC-3e/AC-3) and a power output of 37 kW at 400 V. Its versatility is enhanced by a broad operating range of 175-280 V AC/DC for the control coil and an integrated varistor for surge protection, ensuring maximum operational stability. The S3 size offers a compact yet powerful solution for your control panel.

Key Features & Function

• High Power Capacity: Rated for 80 A (AC-3e/AC-3) and 37 kW / 400 V, making it suitable for demanding motor control applications.
• Versatile Control Voltage: The 175-280 V AC/DC coil voltage allows for flexible integration into various power systems, reducing the need for multiple contactor types.
• Integrated Varistor: Provides built-in surge suppression, protecting the coil and extending the life of the contactor and connected equipment.
• Dual Terminal System: Features screw terminals for the main circuit, ensuring a secure and high-current connection, and innovative spring-loaded terminals for the control and auxiliary circuits, enabling fast, tool-free wiring and vibration-proof connections.
• Auxiliary Contacts: Equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts, allowing for easy integration into interlocking, signaling, and control circuits.
• Compact Size S3: Offers a space-saving design without compromising on performance, ideal for optimizing cabinet layout.
• 3-Pole Configuration: Provides reliable switching for 3-phase applications.

Benefit

• Enhanced Reliability: The integrated varistor and robust construction minimize downtime by protecting against electrical surges and mechanical wear.
• Reduced Installation Time: Spring-loaded terminals for the control circuit allow for quick and easy installation, saving labor costs.
• Vibration-Resistant Connections: Spring-loaded technology ensures a secure, gas-tight connection, preventing wire loosening in high-vibration environments.
• Flexible Integration: The wide voltage range and combination of terminal types make this contactor highly adaptable for diverse industrial settings.
• Safety and Durability: Engineered to meet stringent industrial standards, providing a long service life and reliable operation.

Application

The Siemens 3RT2045-3NP30 contactor is a crucial component in:

• Motor control centers (MCCs)
• Pump and fan control systems
• Heating, ventilation, and air conditioning (HVAC) systems
• Conveyor systems
• General industrial machinery

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