Siemens SIRIUS 3RT2 Power Contactor 3RT2035-3NB30, 41A, 18.5kW, AC/DC Coil, Size S2 Original Brand New

Overview

The Siemens 3RT2035-3NB30 is a robust and reliable 3-pole power contactor from the SIRIUS 3RT2 modular system, designed for switching motors and other resistive loads up to 41 Amps (AC-3e/AC-3) and 18.5 kW (at 400 V). Its compact Size S2 design and high contact reliability make it an essential component in modern industrial control and automation applications. The wide-range AC/DC control voltage and integrated surge suppression simplify installation and protect against coil overvoltage.

Benefits & Advantages

• Simplified Installation: The wide-range 20-33V AC/DC coil allows for flexibility in control power without needing separate AC or DC models, reducing inventory complexity.
• Fast, Vibration-Proof Wiring: Spring-loaded terminals for the control and auxiliary circuits ensure a quick, maintenance-free, and highly reliable connection, ideal for environments with vibration.
• Increased Longevity: The integrated varistor protects the control coil against surge voltages, prolonging the contactor’s service life.
• Globally Approved: The 3RT2 series is IE3/IE4-ready and approved for worldwide use (e.g., IEC and UL/CSA), making it suitable for international projects.
• Seamless Integration: Part of the modular SIRIUS system, it is easily combined with overload relays and other accessories.

Function / Application

The 3RT2035-3NB30 is primarily used for switching 3-phase AC motors (AC-3e/AC-3 applications). Typical applications include:

• Controlling pumps, fans, and compressors.
• Industrial machine control systems.
• Automation and control panels.

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