Siemens 3RT2035-1AN20 SIRIUS Power Contactor 41A, 18.5kW, 220V AC Coil, S2 Frame Size Original Brand New

Overview

The Siemens 3RT2035-1AN20 is a high-performance power contactor from the trusted SIRIUS series, engineered for robust motor control applications. This 3-pole contactor is designed to reliably switch loads up to 41 A for AC-3e/AC-3 applications, corresponding to a power rating of 18.5 kW at 400 V.

Its compact S2 frame size makes it an excellent choice for space-constrained industrial panels without compromising on power or durability. The unit features a standard 220 V AC control voltage and includes built-in auxiliary contacts (1 NO + 1 NC) for enhanced control and signaling. With its secure screw terminals, installation and wiring are straightforward and reliable.

Key Features & Benefit

• High Performance: Rated for 41 A (AC-3e/AC-3) and 18.5 kW at 400 V, providing reliable control for demanding motor loads.
• Integrated Auxiliary Contacts: The built-in 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts simplify wiring for control circuits, feedback loops, and signaling functions.
• Space-Saving Design: The compact S2 frame size allows for higher component density in control cabinets, optimizing panel space.
• Durable and Reliable: As part of the Siemens SIRIUS family, this contactor is built to meet rigorous industrial standards, ensuring a long operational life and high switching endurance.
• Easy Installation: Features robust screw terminals for secure and simple wiring, reducing installation time and maintenance efforts.
• Global Standard Compliance: Conforms to international standards (e.g., IEC, UL), making it suitable for global applications.

Function

The Siemens 3RT2035-1AN20 power contactor serves as an electromagnetic switch, used primarily to remotely control and switch on/off three-phase AC motors and other electrical loads. When the 220 V AC control voltage is applied to the coil, it generates a magnetic field that closes the main power contacts, allowing current to flow to the motor. The auxiliary contacts simultaneously change state, providing valuable feedback to the control system. This functionality is essential in a wide range of applications, including:

• Starting and stopping electric motors
• Controlling lighting circuits
• Switching heating loads
• Acting as a main contactor in automation systems

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