3RT2446-1AC20

Description

Overview

The Siemens 3RT2446-1AC20 is a high-performance AC-1 contactor designed for reliable operation in industrial applications. Rated at 140 A and capable of handling voltages up to 690 V at 40 °C, this 3-pole contactor ensures superior efficiency and durability. Equipped with 1 NO + 1 NC auxiliary contacts, it provides flexible control options while maintaining safety and reliability in demanding environments.

Key Benefit

• High Load Capacity: Handles up to 140 A, suitable for medium to high-power circuits.

• Versatile Control: Comes with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for diverse control applications.

• Durable Construction: Designed for 40 °C ambient temperature and long-lasting operation.

• Easy Installation: Main circuit features box terminals, and control/auxiliary circuits use screw terminals for secure connections.

• Compact Size: Size S3 offers a balance between performance and space-saving design.

Function

• Switching and controlling AC-1 loads

• Auxiliary contacts for control and signaling purposes

• Reliable main circuit operation with robust terminal connections

• Ensures safe and efficient motor and circuit management in industrial setups

Technical Specification

• Model: Siemens 3RT2446-1AC20

• Current Rating: 140 A (AC-1)

• Voltage Rating: 690 V / 40 °C

• Poles: 3-pole

• Coil Voltage: 24 V AC, 50/60 Hz

• Auxiliary Contacts: 1 NO + 1 NC

• Main Circuit Connection: Box terminal

• Control/Auxiliary Circuit Connection: Screw terminal

• Size: S3

Application

• Industrial motor starters

• Electrical control panels

• Machinery and automation systems

• Power distribution and switching circuits

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