Siemens 3MT8018-1AH03 Contactor 18A/7.5kW, 400V, 48 VAC 50Hz Coil, S0 Original Brand New

Overview

The Siemens 3MT8018-1AH03 Contactor is a high-performance, compact solution engineered for reliable control of electrical loads in diverse industrial and commercial environments. Designed for AC-3 utilization, this dependable 18A/7.5kW, 400V contactor ensures precise and safe power switching for various motors and inductive loads. With its specific AC 48V, 50Hz coil and compact size S0, the Siemens 3MT8018-1AH03 is an ideal choice for control circuits where space optimization, integrated auxiliary contacts, and dependable performance are critical.

Key Features

• Optimized Current & Power Rating: Rated for 18A (AC-3) and capable of handling up to 7.5kW at 400V, making it perfectly suited for medium-duty motor control and general electrical loads.
• Specific 48V AC 50Hz Coil: Equipped with an AC 48V, 50Hz coil, specifically designed for control systems operating on this voltage and frequency standard, ensuring optimal performance and compatibility.
• Integrated Auxiliary Contacts: Features 1 normally open (1NO) and 1 normally closed (1NC) auxiliary contacts, providing essential flexibility for basic interlocking, signaling, and feedback within control circuits without needing external add-ons.
• Reliable 3-Pole Design: Ensures secure and efficient switching of three-phase power, essential for the dependable operation of industrial machinery.
• Compact Size S0: Designed with the S0 size to optimize panel space efficiency, making it perfectly suited for compact enclosures and distributed control systems.
• Secure Screw Terminals: Provides highly reliable, robust, and straightforward wiring connections via screw terminals, ensuring ease of installation and long-term stability in diverse applications.
• Siemens Quality & Durability: Manufactured by Siemens, guaranteeing a high standard of engineering, proven reliability, and extended operational life in typical industrial environments.

Function & Application

The primary function of the Siemens 3MT8018-1AH03 Contactor is to safely and effectively control electrical circuits for various industrial and commercial equipment. Its 3-pole configuration makes it an excellent choice for direct-on-line (DOL) starting and stopping of three-phase induction motors up to 7.5kW, as well as managing resistive or inductive loads within control systems. The integrated 1NO1NC auxiliary contacts are a key feature, facilitating essential control logic, enabling simple feedback to PLCs (Programmable Logic Controllers), basic interlocking with other components, or operational status indication. This industrial motor contactor is widely used in applications such as:

• Small to medium-sized motor control panels
• Basic machine automation systems requiring integrated feedback
• Heating elements and lighting control in industrial settings
• Pumping and fan systems for various loads
• Conveyor systems where reliable on/off control with status feedback is needed
• Building management systems for electrical loads
• Control circuits specifically designed for a 48V AC 50Hz supply

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