Siemens 3RT2446-1NE30 Contactor AC-1 140A, 3-Pole, 48–80V AC/DC, Integrated Varistor, S3 Size Original Brand New

Overview

The Siemens 3RT2446-1NE30 is a high-performance industrial contactor engineered for reliable switching of electrical loads in demanding environments. Designed for AC-1 applications up to 140 A and 690 V at 40 °C, this 3-pole contactor delivers exceptional operational stability and long service life. With a wide control voltage range of 48–80 V AC/DC, integrated varistor protection, and durable terminal designs, it offers superior safety and efficiency for modern control systems.

Benefit

• High Current Capacity: Supports up to 140 A, ideal for heavy-duty industrial loads.

• Reliable Voltage Range: Wide 48–80 V AC/DC control voltage ensures flexible installation.

• Enhanced Protection: Integrated varistor minimizes voltage spikes for safer operation.

• Versatile Connectivity: Box terminals for the main circuit and screw terminals for control/auxiliary circuits.

• Built for Longevity: Industrial-grade construction ensures durability in continuous operation.

• Convenient Integration: Comes with 1 NO + 1 NC auxiliary contacts for extended control functionality.

Function & Application

The Siemens 3RT2446-1NE30 functions as an industrial contactor used to switch electrical power circuits safely and efficiently. Its robust AC-1 rating makes it suitable for non-inductive or slightly inductive loads such as:

• Resistive heaters

• Distribution systems

• Industrial panels

• Motor control centers

• Power management installations

Its S3 size and high thermal rating allow seamless integration into compact or large control cabinets.

Features

• Category: Contactor

• Model: Siemens 3RT2446-1NE30

• Current Rating: 140 A (AC-1)

• Voltage Rating: 690 V at 40 °C

• Poles: 3-pole

• Control Voltage: 48–80 V AC/DC, 50/60 Hz

• Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC)

• Main Circuit Terminals: Box terminal

• Control/Aux Terminals: Screw terminal

• Size: S3

• Special Feature: Integrated varistor for surge protection

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