Siemens 3MT8018-1AL20 AC-3 Contactor 18A/7.5kW, 400V, 230V AC Coil, Size S0 Original Brand New

Overview

The Siemens 3MT8018-1AL20 is a high-performance AC-3 contactor designed for reliable switching of resistive and inductive loads, particularly for motor control applications. Engineered by Siemens, a global leader in industrial automation, this contactor offers robust construction and precise operation, ensuring longevity and safety in diverse electrical systems. With a compact Size S0 frame and convenient screw terminals, it’s an ideal choice for efficient integration into control panels and machinery.

Key Benefit

• Optimized Motor Control: Specifically designed for AC-3 utilization category, providing excellent performance for starting and stopping squirrel-cage motors.
• High Power Capacity: Handles up to 18 Amperes (AC-3) and 7.5 kilowatts (at 400V), suitable for a wide range of industrial motor applications.
• Reliable Operation: Siemens’ renowned engineering ensures consistent and durable performance, minimizing downtime and maintenance.
• Versatile Voltage Compatibility: Operates on a 400V main circuit voltage with a 230V AC, 50/60Hz control coil, offering broad applicability.
• Easy Installation: Features robust screw terminals for secure and straightforward wiring, simplifying installation and maintenance procedures.
• Space-Saving Design: The compact Size S0 form factor allows for efficient use of panel space.

Function

The Siemens 3MT8018-1AL20 contactor primarily function as an electrically operated switch. When the 230V AC control coil is energized, it closes the main power contacts, allowing current to flow to the connected load (e.g., an electric motor). When the coil is de-energized, the contacts open, interrupting the power flow. This mechanism enables remote control, automatic operation, and safety interlocks in various industrial and commercial application.

Application

The Siemens 3MT8018-1AL20 contactor is ideally suited for:

• Controlling electric motor in industrial machinery
• HVAC system
• Pumps and fan
• Conveyor system
• Automation and control panel
• General-purpose switching of resistive and inductive load

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