3RT2035-1KB44-3MA0

Description

Overview

The Siemens 3RT2035-1KB44-3MA0 Power Contactor is a high-performance switching device designed for reliable motor control in industrial and commercial applications. Engineered under the trusted Siemens SIRIUS series, this 3-pole contactor delivers superior durability, energy efficiency, and operational safety. Its integrated varistor ensures optimal coil protection, while the 24V DC control voltage allows seamless compatibility with PLC outputs. Ideal for applications requiring high switching capacity, this contactor supports 41 A AC-3e/AC-3 operations and motor ratings up to 18.5 kW at 400 V.

Key Benefit

• Reliable Motor Switching: Supports AC-3e/AC-3 categories for demanding motor loads.

• Enhanced Protection: Integrated varistor protects the coil from voltage spikes.

• PLC-Compatible: Designed for direct operation via PLC outputs.

• High Durability: Siemens S2 frame ensures long service life and stable performance.

• Easy Installation: Screw-type terminals and captive auxiliary switch simplify wiring.

Technical Features

• Current Rating: 41 A (AC-3e/AC-3)

• Motor Rating: 18.5 kW at 400 V

• Poles: 3-pole

• Coil Voltage: 24 V DC (0.8–1.2 × Uc range)

• Auxiliary Contacts: 2 NO + 2 NC

• Terminal Type: Screw terminals

• Frame Size: S2

• Integrated Varistor: Yes (for overvoltage protection)

• Suitable For: Motors, control panels, automation systems, PLC-controlled environments

Function

• Motor switching and control

• Load management for industrial machinery

• Reliable operation under frequent switching

• Easy integration into automation and control systems

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