Siemens 3MT8140-1AG24 Contactor 140A/75kW, 400V, 110 VAC 50/60Hz, S6 Original Brand New

Overview

The Siemens 3MT8140-1AG24 Contactor is a high-capacity, robust solution specifically engineered for demanding industrial electrical applications requiring reliable power control. Designed for AC-3 utilization, this formidable 140A/75kW, 400V contactor ensures precise and safe switching of large electric motors and other significant inductive loads. Featuring a versatile 110 VAC, 50/60 Hz coil and a substantial size S6, the Siemens 3MT8140-1AG24 is an indispensable component for critical industrial control circuits, offering exceptional performance, broad compatibility, and superior durability.

Key Features

• High Current & Power Rating: Rated for a substantial 140A (AC-3) and capable of handling up to 75kW at 400V, making it perfectly suited for large-scale industrial motor control and high-power electrical circuits.
• Flexible Global Coil Voltage: Equipped with a 110 VAC, 50/60 Hz coil, providing broad compatibility with common industrial control voltage standards across various regions and frequencies.
• Integrated Auxiliary Contacts: Features 2 normally open (2NO) and 2 normally closed (2NC) auxiliary contacts, offering extensive flexibility for complex interlocking, precise signaling, and advanced automation control schemes.
• Robust 3-Pole Design: Ensures secure and efficient switching of three-phase power, critical for the dependable operation of heavy industrial machinery.
• Large Frame Size S6: Optimized with the size S6 frame for robust performance and secure mounting in industrial control panels handling significant electrical loads, ensuring stability and durability.
• Secure Screw Terminals: Provides highly reliable, strong, and straightforward wiring connections via screw terminals, essential for high-current applications where secure contacts are paramount for safety and uptime.
• Siemens Quality & Reliability: Manufactured by Siemens, guaranteeing a high standard of engineering, proven reliability, and extended operational life even in the most demanding industrial environments.

Function & Application

The primary function of the Siemens 3MT8140-1AG24 Contactor is to safely and effectively control extremely high-power electrical circuits. Its robust 3-pole configuration makes it an excellent choice for direct-on-line (DOL) starting and stopping of large three-phase induction motors, as well as managing other significant resistive or inductive loads within complex industrial systems. The integrated 2NO2NC auxiliary contacts are a key feature, enabling highly sophisticated control logic. These contacts allow for extensive feedback to PLCs (Programmable Logic Controllers), intricate interlocking with other safety devices, and comprehensive operational status indication within advanced automation and building management systems. This high power industrial contactor is an essential component in applications such as:

• Heavy industrial motor control centers (MCCs) for pumps, fans, and compressors
• Large heating, ventilation, and air conditioning (HVAC) systems
• Main power distribution in manufacturing plants
• Cranes, hoists, and heavy conveying systems requiring extensive control feedback
• Industrial ovens and specialized heating processes
• Power factor correction systems with advanced control needs
• Large building automation and infrastructure projects where detailed status monitoring is crucial