Siemens 3RT2036-1NF34 Power Contactor 51A, 22kW, 83-155V AC/DC, 2NO+2NC, S2 Size Original Brand New

Overview

The Siemens 3RT2036-1NF34 is a high-performance SIRIUS series power contactor designed for reliable switching of electric motors and other industrial loads. This robust 3-pole contactor is engineered for use in demanding applications, offering an impressive operational current of 51 A for AC-3e/AC-3 switching at up to 22 kW / 400 V.

The wide-range AC/DC control voltage of 83-155 V, coupled with an integrated varistor, provides exceptional flexibility and protection against voltage spikes. With its 2 NO + 2 NC auxiliary contacts and a convenient screw terminal connection, this size S2 contactor is a versatile and essential component for modern industrial control systems. The removable auxiliary switch further enhances its adaptability for various wiring configurations.

Key Benefit

• High Performance: Capable of handling significant loads with a 51 A rated current and a 22 kW power rating, ensuring reliable operation in heavy-duty applications.
• Versatile Control: The wide-range 83-155 V AC/DC control voltage allows for integration into a variety of power systems, reducing inventory and complexity.
• Enhanced Protection: The integrated varistor effectively suppresses surge voltages, protecting both the contactor and connected equipment from damage.
• Flexible Connectivity: Equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing extensive options for signaling, interlocking, and control circuit design.
• Durable and Reliable: Built to Siemens’ high standards, this S2 size contactor features a robust design and screw terminals for secure, long-lasting connections.
• Easy Maintenance & Installation: The screw terminals simplify wiring, while the removable auxiliary switch allows for quick and easy replacement or modification.

Function

• Motor Switching: Efficiently and safely switches electric motors on and off.
• Load Switching: Controls power to resistive loads, heating elements, and other industrial equipment.
• Control Circuit Integration: The auxiliary contacts enable complex control functions such as interlocking, feedback signaling, and status indication.
• Surge Voltage Suppression: The integrated varistor protects the control circuit from transient overvoltages, extending the lifespan of the contactor and other components.

Technical Specification

• Product Type: Power Contactor
• Product Number: 3RT2036-1NF34
• Series: SIRIUS 3RT2
• Poles: 3
• Operational Current (AC-3e/AC-3): 51 A
• Rated Power (AC-3e/AC-3): 22 kW at 400 V
• Control Voltage: 83-155 V AC/DC, 50/60 Hz
• Auxiliary Contacts: 2 NO + 2 NC (removable)
• Connection Type: Screw Terminal
• Size: S2
• Special Features: Integrated Varistor

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