Siemens 3MT8050-1AH04 Contactor AC-3 50A/22kW 400V 2NO2NC, 48 VAC, 50 Hz 3-pole, Size S2 Original Brand New

Overview

The Siemens 3MT8050-1AH04 is a robust and reliable 3-pole AC-3 contactor, engineered for demanding industrial applications. With a rated current of 50A and power handling capability of 22kW at 400V, this Size S2 contactor is ideal for controlling resistive, inductive, and capacitive loads, particularly in motor control circuits. Its integrated 2 normally open (2NO) and 2 normally closed (2NC) auxiliary contacts provide flexible signaling and interlocking options, enhancing system safety and control. Designed for ease of installation and secure connections, it features convenient screw terminals. The 48 VAC, 50 Hz coil ensures stable and efficient operation in a wide range of industrial environments.

Function

The Siemens 3MT8050-1AH04 contactor serves as an electrically controlled switch for a power circuit. Its primary function is to safely and efficiently make or break electrical connections to equipment such as motors, heating elements, and lighting systems. When the 48 VAC, 50 Hz coil is energized, it creates a magnetic field that pulls in the armature, closing the main power contacts and allowing current to flow to the connected load. De-energizing the coil releases the armature, opening the contacts and cutting off power. The integrated auxiliary contacts (2NO/2NC) allow for signaling the contactor’s status to control systems or for implementing interlocks and control logic within a circuit.

Key Features

• High Power Rating: Handles up to 50A and 22kW at 400V (AC-3 rating), suitable for a wide range of motor and general-purpose loads.
• 3-Pole Design: Ideal for three-phase motor control applications.
• Integrated Auxiliary Contacts: Features 2 Normally Open (NO) and 2 Normally Closed (NC) contacts for enhanced control, interlocking, and status indication.
• Coil Voltage: Operates on a 48 VAC, 50 Hz control voltage, commonly found in industrial control systems.
• Size S2: Standardized Siemens size for compatibility and easy integration.
• Screw Terminals: Provides secure and reliable electrical connections, simplifying installation and maintenance.
• AC-3 Utilization Category: Optimized for starting squirrel-cage motors and switching off only after the motor is up to speed.
• Robust Construction: Designed for long service life and reliable performance in harsh industrial environments.
• Siemens Quality: Backed by Siemens’ reputation for high-quality industrial automation components.

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