Siemens 3RT2035-1AC20 Power Contactor 41A, 18.5kW, 24V AC, Size S2 Original Brand New

Overview 

The Siemens 3RT2035-1AC20 is a robust and reliable power contactor designed for industrial applications. As part of the SIRIUS family, this contactor is engineered to handle high-performance switching tasks with precision and durability. It is rated for AC-3e/AC-3 operation, making it suitable for controlling electric motors.

With a nominal current of 41 A and a power rating of 18.5 kW at 400 V, this 3-pole contactor provides excellent performance for a wide range of machinery. Its 24 V AC control voltage ensures compatibility with standard control circuits, while the integrated 1 NO + 1 NC auxiliary contacts offer additional flexibility for signaling and interlocking functions. The S2 size and screw terminals make installation straightforward and secure.

Key Features & Benefit

• High Performance: Capable of handling up to 41 A and 18.5 kW, ideal for medium-duty motor control applications.
• Reliable Operation: Built with Siemens’ renowned quality, ensuring long-term reliability and minimal maintenance.
• Versatile Auxiliary Contacts: The built-in 1 NO and 1 NC auxiliary contacts provide crucial feedback and control circuit integration.
• Easy Installation: Features secure screw terminals and a compact size (S2) for simple and efficient mounting in control panels.
• Energy Efficient: Designed for optimal performance with minimal power consumption during operation.
• Broad Compatibility: Operates on a standard 24 V AC control voltage, compatible with most industrial control systems.

Technical Specification

• Product Number: 3RT2035-1AC20
• Product Type: Power Contactor
• Operating Category: AC-3e/AC-3
• Rated Current: 41 A
• Rated Power: 18.5 kW @ 400 V
• Number of Poles: 3-pole
• Control Voltage: 24 V AC (50/60 Hz)
• Auxiliary Contacts: 1 NO + 1 NC
• Connection Type: Screw Terminal
• Size: S2
• Manufacturer: Siemens

Function

The Siemens 3RT2035-1AC20 power contactor serves as an electromechanical switch. When the 24 V AC control voltage is applied to the coil, it creates a magnetic field that pulls the main contacts together, allowing power to flow through the 3 poles to the connected load (e.g., an electric motor). When the control voltage is removed, a spring forces the contacts apart, interrupting the circuit. The integrated auxiliary contacts switch simultaneously, providing status signals (NO) or breaking control circuits (NC) as needed for safety and control logic.

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