Siemens 3RT2035-1AH20 SIRIUS Power Contactor 41 A, 18.5 kW, 48V AC Coil, S2 Size Original Brand New

Overview

The Siemens 3RT2035-1AH20 is a high-performance power contactor from the trusted SIRIUS family, designed for reliable switching of motors and other industrial loads. As part of the Siemens S2 size series, this 3-pole contactor is engineered for demanding applications, offering a robust solution for a wide range of control and automation tasks. Its compact design and a comprehensive set of features make it an excellent choice for a variety of industrial environments.

Key Benefit & Features

• Exceptional Performance: Rated for AC-3e/AC-3 applications, this contactor can handle a continuous current of 41 A and is suitable for motor switching up to 18.5 kW at 400 V.
• Reliable Operation: Equipped with a 48 V AC, 50/60 Hz coil, it ensures reliable and efficient control in a variety of power systems.
• Integrated Auxiliary Contacts: The built-in 1 NO (Normally Open) and 1 NC (Normally Closed) auxiliary contacts provide enhanced functionality for signaling and interlocking circuits, reducing the need for additional components.
• Secure Connections: Featuring robust screw terminals, the 3RT2035-1AH20 ensures a secure and vibration-resistant connection, simplifying installation and maintenance.
• Compact & Space-Saving: Its S2 size form factor allows for efficient use of space within control cabinets and panels.
• Versatile Applications: Ideal for motor control, switching resistive loads, and general automation in industrial machinery, HVAC systems, and more.

Function

The Siemens 3RT2035-1AH20 power contactor functions as a remotely controlled switch, used to connect or disconnect a power circuit. When a 48 V AC signal is applied to its coil, an electromagnet is energized, causing the main power contacts to close. This allows electrical current to flow to the connected load, such as an electric motor. The auxiliary contacts simultaneously change state (NO becomes closed, NC becomes open), providing feedback for control systems or activating other components. When the coil is de-energized, the main contacts open, interrupting the power flow.

Technical Specification

• Product Type: Power Contactor
• Manufacturer: Siemens
• Product Series: SIRIUS
• Product Number: 3RT2035-1AH20
• Size: S2
• Rated Current (AC-3e/AC-3): 41 A
• Rated Power (AC-3): 18.5 kW at 400 V
• Coil Voltage: 48 V AC, 50/60 Hz
• Number of Poles: 3-pole
• Auxiliary Contacts: 1 NO + 1 NC
• Connection Type: Screw Terminal

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