Siemens 3RT2046-1SP30 Contactor, 95A, 45kW, AC/DC Coil Original Brand New

Overview: Siemens SIRIUS 3RT2046-1SP30 Power Contactor

The Siemens 3RT2046-1SP30 is a robust, high-performance SIRIUS 3RT2 series power contactor designed for switching motors up to 45 kW / 400 V (AC-3e/AC-3 rating). This 3-pole contactor in Size S3 is an essential component for motor control, automation systems, and industrial load switching applications. A key feature is the wide-range AC/DC coil (175-280 V) with an integrated varistor for enhanced surge suppression, offering maximum flexibility and protection in diverse control circuits.

Benefits & Features

1. Versatile Control: The wide-range $175-280\text{ V AC/DC}$ coil allows for global use and flexible integration into control systems, eliminating the need for separate AC and DC versions.
2. Surge Protection: The integrated varistor significantly reduces voltage peaks, protecting the control electronics and prolonging the life of the contactor and associated components.
3. Reliable Switching: Rated for 95 A operational current and 45 kW motor power, it delivers dependable performance in demanding industrial environments.
4. Space-Saving Design: As part of the SIRIUS modular system, the Size S3 design is optimized for efficient use of cabinet space.
5. Easy Wiring: Features robust screw terminals for secure and straightforward connection of main and auxiliary circuits.
6. PLC Compatibility: The F-PLC-IN designation indicates optimized compatibility with safe PLC outputs, making it ideal for safety-relevant applications.

Function

The Siemens 3RT2046-1SP30 power contactor is primarily used for switching electrical loads, particularly 3-phase AC motors. It serves as a remotely controlled switching device, connecting the motor to the power supply when the coil is energized by the control voltage (e.g., from a PLC or control switch). The built-in auxiliary contact ($1\text{ NC}$) provides feedback or interlocking functionality within the control circuit.

Application

• Motor control and protection in industrial machinery.
• Switching resistive loads, heating, and lighting systems.
• Integration into automated manufacturing and process control systems.
• Use in applications requiring a wide-range control voltage and surge protection.

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