Siemens 3RT2035-1AR64 Power Contactor S2, 41A, 18.5kW, 400V AC Original Brand New

Overview

The Siemens 3RT2035-1AR64 is a high-performance, 3-pole SIRIUS power contactor designed for switching motors and other electrical loads. This robust contactor belongs to the compact and versatile SIRIUS modular system, ensuring optimal coordination with other Siemens components for reliable load feeders.

Rated for a maximum operating current of 41 A (AC-3e/AC-3) and capable of switching motors up to 18.5 kW at 400 V, this device is ideal for industrial control applications requiring dependable motor switching. It features a control supply voltage of 400 V AC at 50 Hz or 400-440 V AC at 60 Hz and comes equipped with a pre-installed, high-utility 2 NO + 2 NC auxiliary switch block. The size S2 unit utilizes reliable screw terminals for secure wiring.

Key Benefits & Features

• Compact Performance: High switching capacity (up to 18.5 kW) in a space-saving Size S2 frame.
• Integrated Auxiliary Switches: Pre-installed 2 NO + 2 NC auxiliary contacts reduce design complexity and simplify integration into control circuits.
• Global Compliance: Approved for worldwide use (e.g., IEC and UL/CSA), making it suitable for international machinery and systems.
• IE3/IE4 Ready: Optimized for use with modern, high-efficiency IE3 and IE4 motors.
• Reliable Connection: Features robust screw terminals for a dependable and secure electrical connection.
• System Compatibility: Part of the comprehensive Siemens SIRIUS modular system, ensuring seamless combination with motor protection circuit breakers, overload relays, and other control components.

Function

The Siemens 3RT2035-1AR64 acts as an electrically operated switch, primarily used for remote and automatic switching of three-phase electrical loads, particularly motors. When the control coil is energized with the specified $400\text{V AC}$ voltage, the main contacts close, connecting the motor to the power supply. The integrated $2\text{NO}+2\text{NC}$ auxiliary contacts provide feedback or interlocking signals to the control circuit. 

Application

This power contactor is an essential component in:

• Motor starters (Direct-On-Line, Reversing, Star-Delta/Wye-Delta).
• Switching of heating loads, lighting systems, and capacitors.
• Industrial machinery, including pumps, compressors, fans, and conveyor systems.
• Control panels and automation systems.

For more of our products, including the full range of Siemens SIRIUS contactors and industrial control components, visit Turll today.