Siemens 3MT8018-1AH24 Contactor AC-3, 18A/7.5kW, 400V, 2NO2NC, AC 48V, 50/60Hz, size S0 Original Brand New

Overview

The Siemens SIRIUS 3RT2 3MT8018-1AH24 is a high-performance 3-pole power contactor designed for robust motor control and general-purpose switching applications in industrial environments. Engineered for AC-3 utilization category, this compact Size S0 contactor boasts an impressive 18A rated operational current for 400V AC motors up to 7.5kW. Its reliable 48V AC coil (50/60Hz) ensures consistent operation, while the integrated 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts provide versatile signaling and interlocking capabilities. Featuring convenient screw terminals, the 3MT8018-1AH24 offers straightforward installation and secure wiring, making it an ideal choice for a wide range of industrial automation and control systems.

Function

• Motor Control: Primarily used for switching 3-phase AC motors on and off, particularly in applications requiring AC-3 duty (normal starting and stopping of squirrel cage motors).
• Load Switching: Capable of switching resistive, inductive, and capacitive loads in various industrial electrical circuits.
• Automation Integration: Acts as a key component in control circuits, enabling remote or automatic operation of connected equipment.
• Signaling and Interlocking: The integrated auxiliary contacts (2NO+2NC) provide feedback on the contactor’s status and can be used for interlocking other control devices, enhancing safety and operational sequencing.

Key Features

• Rated Operational Current (AC-3): 18A at 400V, suitable for motors up to 7.5kW.
• Coil Voltage: 48V AC, 50/60Hz for reliable operation.
• Auxiliary Contacts: Integrated 2 NO + 2 NC for flexible control and feedback.
• Size S0: Compact design, optimizing panel space.
• Connection Type: Secure and easy-to-use screw terminals.
• Utilization Category: AC-3, optimized for motor switching applications.
• Brand Reliability: Part of the globally recognized Siemens SIRIUS 3RT2 series, ensuring high quality and durability.
• Compliance: Meets relevant international standards for industrial control gear.

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