Siemens 3RT2036-1KB44-3MA0 Power Contactor 51A, 22kW / 400V, 3-Pole, 24V DC Original Brand New

Overview

The Siemens 3RT2036-1KB44-3MA0 is a premium-grade power contactor designed for industrial automation and control systems. This 3-pole device ensures reliable switching of motors and resistive loads up to 22 kW at 400V. Its integrated varistor protects against voltage spikes, while auxiliary contacts (2 NO + 2 NC) allow for flexible control and signaling applications. Designed with screw terminals and a captive auxiliary switch, this contactor is ideal for integration with PLC outputs, ensuring durability and efficiency in demanding environments.

Key Features & Function

• Current Rating: 51 A, suitable for medium-power applications

• Voltage Rating: 22 kW / 400 V, AC-3e / AC-3 operation

• Poles: 3-pole contactor for versatile motor and load control

• Coil Voltage: 24 V DC, with operating range 0.8–1.2 Uc

• Integrated Varistor: Protects contactor from voltage spikes and surges

• Auxiliary Contacts: 2 NO + 2 NC for signaling and interlock functions

• Terminals: Screw type for secure and reliable connections

• Frame Size: S2, compact yet robust design

• PLC Compatible: Works seamlessly with automated control systems

• Captive Auxiliary Switch: Prevents loss and simplifies installation

Benefit

• Enhanced safety and protection for motors and electrical circuits

• Reliable switching in demanding industrial environments

• Simplified integration with PLCs for automation projects

• Reduced maintenance with durable construction and integrated varistor

• Flexible control with auxiliary contacts and screw terminals

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