Siemens 3MT8018-1AB04 Power Contactor 18A, 7.5kW, 400V, 24V AC Coil, S0 Size Original Brand New

Overview

Siemens 3MT8018-1AB04 Power Contactor is a high-performance and reliable switching device, precisely engineered for efficient motor control in a wide array of industrial environments. As a vital component of the renowned Siemens SIRIUS 3RT series, this 3-pole contactor ensures robust operation and an extended service life, even under demanding conditions. Its compact design and versatile features make it an excellent choice for general industrial applications requiring reliable switching of smaller to medium-sized motors.

Function

The primary function of the Siemens 3MT8018-1AB04 contactor is to safely and efficiently switch inductive loads, most commonly three-phase asynchronous motors. Operating in the AC-3 utilization category, it is designed for standard motor starting and stopping applications where the motor is switched on while running at full speed and switched off after the motor has reached its full speed. It provides a robust electrical connection, ensuring reliable power transmission to the motor and protecting the system from overloads when properly integrated with protective devices. The integrated auxiliary contacts allow for crucial feedback and control in automation circuits.

Key Features:

• Model: Siemens 3MT8018-1AB04 Power Contactor
• Poles: 3-pole configuration for three-phase motor control.
• Series: Part of the highly regarded Siemens SIRIUS 3RT series, known for modularity and reliability.
• Utilization Category: AC-3, specifically for switching asynchronous motors under normal operating conditions.
• Rated Current (AC-3): 18 Amperes, suitable for medium-duty motor loads.
• Rated Power (AC-3): Handles motor power up to 7.5 kW at 400V.
• Control Coil Voltage: 24V AC, 50Hz – a common low-voltage control signal, ideal for safety circuits and international compatibility.
• Size: S0, offering a compact footprint for space-efficient panel design.
• Terminal Type: Secure screw terminals for reliable and straightforward wiring of main and auxiliary circuits.
• Auxiliary Contacts: Equipped with 2 Normally Open (NO) and 2 Normally Closed (NC) integrated contacts, providing extensive flexibility for control, interlocking, and signaling within automation systems.
• Reliability: Built with high contact reliability and designed for a long mechanical and electrical service life.
• Application: Ideal for various industrial motor control applications across manufacturing, processing, HVAC, and material handling.

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