Siemens 3RT2023-2NB30 SIRIUS Power Contactor, 9A, 4kW, AC/DC Coil Original Brand New

Overview

The Siemens 3RT2023-2NB30 is a highly reliable 3-pole power contactor from the SIRIUS 3RT2 series, optimized for switching motors up to 4 kW at 400 V (AC-3e/AC-3). Its compact Size S0 design is ideal for space-saving installations in industrial control panels. A key feature is the wide-range 21-28V AC/DC operating coil with an integrated varistor, which provides robust surge suppression and flexibility for control voltage selection. The fast and vibration-proof spring-loaded terminals ensure quick wiring and a secure connection for both main and auxiliary circuits.

Benefit

1. Increased Coil Protection: The integrated varistor efficiently suppresses voltage peaks, significantly extending the service life of the coil and protecting the control system.
2. Fast, Secure Wiring: Spring-loaded terminals allow for tool-free or minimal-tool wiring, saving installation time and providing a permanent, vibration-proof connection.
3. Compact Design: As a Size S0 contactor, it offers a high switching capacity in a small footprint, conserving panel space.
4. Reliable Motor Switching: Designed for AC-3e/AC-3 applications, ensuring safe and efficient switching of electric motors.

Function

• Switching: Makes and breaks the current in the main circuit, primarily for starting and stopping electric motors.
• Control: Uses the low-voltage AC/DC coil circuit to control the high-power main circuit.

• Surge Protection: The integrated varistor protects the coil from overvoltage transients, improving system reliability.

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