Siemens 3RT2036-1AC20 Power Contactor 51A, 22kW, 24V AC Coil, Size S2 Original Brand New

Overview

The Siemens 3RT2036-1AC20 SIRIUS Power Contactor is a robust and essential component for controlling three-phase electrical loads, particularly in motor applications. Engineered for performance and longevity, this 3-pole contactor is rated for AC-3e/AC-3 operation up to 51 A and can handle a 22 kW load at 400 V.

Designed with efficiency in mind, the 3RT2036-1AC20 features a reliable 24 V AC, 50/60 Hz operating coil for easy integration into control systems. It comes standard with one normally open (1 NO) and one normally closed (1 NC) auxiliary contact, providing immediate feedback on the switching status. The secure and straightforward screw terminals ensure quick and dependable wiring in your electrical panel. This Size S2 contactor is part of the trusted Siemens SIRIUS line, guaranteeing high quality and industrial standard compliance.

Technical Specification

• Product Type: Power Contactor

• Siemens SIRIUS Family: 3RT2

• Product Number: 3RT2036-1AC20

• Operating Current (AC-3e/AC-3): 51 A

• Motor Power (400 V): 22 kW

• Number of Poles: 3-pole

• Operating Coil Voltage: 24 V AC (50/60 Hz)

• Auxiliary Contacts: 1 NO + 1 NC

• Connection Type: Screw Terminal

• Contactor Size: S2

Benefit

• Exceptional Reliability: Part of the industry-leading Siemens SIRIUS family, offering high switching performance and a long operational lifespan.

• Space-Saving Design: The compact Size S2 frame minimizes footprint in control cabinets.

• Global Standard Compliance: Meets international standards for seamless integration into projects worldwide.

• Simplified Troubleshooting: Integrated 1 NO + 1 NC auxiliary contacts allow for immediate status monitoring and feedback to the control system.

• Easy Installation: Robust screw terminals ensure a secure, high-quality, and easy wiring connection.

Function

The 3RT2036-1AC20 functions as an electromechanical switch that safely and remotely controls the flow of high-current power to electrical loads, most commonly AC motors. When the 24 V AC control voltage is applied to the coil, it generates a magnetic field that closes the main power contacts, allowing the 51A/22kW load to be energized. When the control voltage is removed, a spring opens the contacts, safely de-energizing the load.

Application

This versatile Siemens power contactor is ideal for a wide range of industrial applications, including:

• Motor Control: Switching and controlling 3-phase AC motors up to 22 kW.

• Pumping Stations: Controlling high-power water and fluid pumps.

• HVAC Systems: Switching large heating elements or compressor motors.

• Conveyor Systems: Reliable start/stop functionality for industrial automation.

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