Siemens 3RT2446-6AV66 Contactor AC-1, 140A, 690V, 3-Pole, S3 Size Original Brand New

Overview

The Siemens 3RT2446-6AV66 is a high-performance industrial AC-1 contactor designed for reliable motor and power switching applications. Engineered for heavy-duty environments, this 3-pole contactor delivers exceptional durability, stable operation, and optimal electrical performance. With a 140 A current rating and 690 V / 40°C voltage capacity, it ensures consistent control in demanding industrial systems.

Built with ring cable lug main connections and screw terminals for control circuits, the 3RT2446-6AV66 guarantees secure installation and long-term operational integrity. Its integrated 2 NO + 2 NC auxiliary contacts offer enhanced flexibility for control and signaling functions. As part of the renowned Siemens SIRIUS series, this compact S3 size contactor provides superior reliability with minimal maintenance.

Benefit

• High durability for industrial-grade switching applications

• Stable and reliable performance in continuous operations

• Flexible auxiliary configuration with 2 NO + 2 NC contacts

• Strong thermal capacity of 690 V at 40°C for heavy loads

• Easy installation with ring cable lug and screw terminal design

• Compact S3 size suitable for optimized control panel layouts

• Siemens engineering quality ensures long service life

Features & Functions

Electrical Specifications

• Utilization Category: AC-1

• Rated Current: 140 A

• Rated Operational Voltage: 690 V

• Control Voltage: 480 V AC, 60 Hz

• Poles: 3-pole main contact system

Connections

• Main Circuit: Ring cable lug connection

• Control & Auxiliary Circuit: Screw terminals

Auxiliary Contacts

• 2 Normally Open (NO)

• 2 Normally Closed (NC)

Mechanical & Design

• Size: S3

• Robust construction for high mechanical endurance

• Compact frame suitable for industrial panel integration

Application

This contactor is ideal for applications requiring the switching of high-power resistive loads, including:

• Heating Systems: Switching of industrial heaters and ovens.

• Lighting Systems: Control of large lighting banks.

• Power Distribution: Switching and control of non-motor loads.

For more information on the Siemens 3RT2446-6AV66 and to explore our full range of industrial automation products, visit turll today!