Siemens SIRIUS 3RT2046-1NP34 Power Contactor, 95A, 45kW, 175-280V AC/DC Coil, Size S3 Original Brand New

Overview: Siemens SIRIUS 3RT2046-1NP34 High-Performance Power Contactor

The Siemens 3RT2046-1NP34 is a premium, 3-pole power contactor from the globally approved SIRIUS 3RT2 modular system. Engineered for high reliability in motor switching applications, this Size S3 contactor is designed to handle heavy industrial loads with exceptional efficiency and compact design. It is fully certified for worldwide use, including compliance with IE3/IE4 motor efficiency standards.

Benefit

• Exceptional Reliability: Part of the SIRIUS modular system, providing high contact reliability and a long mechanical service life (typically 10 million operating cycles).
• Universal Control Voltage: The wide-range 175-280 V AC/DC coil simplifies inventory and maintenance, accommodating both AC and DC control circuits with a single device.
• Integrated Protection: The built-in varistor offers essential surge suppression, protecting the contactor coil and the control circuit from voltage peaks and extending the system’s lifespan.
• Enhanced Feedback & Control: Features integrated 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contacts for signaling, interlocks, and control circuit feedback, without the need for additional components.
• IE3/IE4 Ready: Certified to meet the requirements of IEC 60947-4-1 category AC-3e, making it ideal for use with modern, high-efficiency IE3 and IE4 motors.
• Easy Integration: The standardized Size S3 design and screw terminals ensure quick and straightforward wiring into any control panel or load feeder assembly.

Function and Application

The 3RT2046-1NP34 functions as a primary switching device for industrial motors and non-inductive loads.

• Function: It is primarily designed for switching three-phase AC motors (AC-3e/AC-3). The electromagnetic coil, powered by the 175-280 V AC/DC supply, closes the three main contacts to connect the load to the power supply. The integrated auxiliary contacts provide real-time status and control signals to PLCs or other controllers.
• Typical Applications:
  • Direct-on-line (DOL) starting of large motors.
  • Switching high-current loads in production lines.
  • Industrial pump and fan control.
  • Integration into complex motor control centers (MCCs) and load feeders.

For more information and to explore our full range of Siemens SIRIUS industrial control and automation products, visit turll today!