Siemens 3MT8025-1AN20 Contactor AC-3, 25A/11kW, 400V, W/O, AC 220V, 50/60Hz, size S0 Original Brand New

Overview: Siemens 3MT8025-1AN20 Industrial Contactor for Motor Control

The Siemens 3MT8025-1AN20 is a high-quality AC-3 contactor specifically engineered for reliable and efficient switching of motors and other inductive loads across a wide range of industrial and commercial applications. This durable 3-pole contactor, sized S0, is an essential component for effective motor control circuits, ensuring stable and safe operation. Designed for 400V main circuits, it can efficiently handle currents up to 25 Amperes and power ratings of 11kW. A key feature of this model is its 220V AC control coil, making the 3MT8025-1AN20 an ideal choice for systems utilizing this common control voltage, ensuring seamless integration into diverse control panels globally. This model is specified “W/O” auxiliary contacts, indicating it functions purely as a power switching device.

Key Features & Specification

• Model: Siemens 3MT8025-1AN20
• Contactor Type: AC-3 (optimized for making, breaking, and occasional starting of squirrel-cage motors)
• Rated Current: 25 Amperes (A)
• Rated Power: 11 Kilowatts (kW) at 400V
• Rated Operational Voltage (Main Circuit): 400 Volts (V) AC
• Auxiliary Contacts: Without (W/O) auxiliary contacts – designed for primary power switching.
• Control Coil Voltage: AC 220V (50/60 Hz) – compatible with a widely used control voltage.
• Poles: 3-pole configuration for three-phase motor applications.
• Size: S0 (Standard industrial size for this current range)
• Terminals: Secure screw terminal connections for straightforward and reliable wiring.
• Durability: Manufactured by Siemens, ensuring long service life and high operational reliability even in demanding industrial conditions.

Function & Applications

The Siemens 3MT8025-1AN20 Contactor serves as a vital electromagnetic switch, enabling the remote and automated control of power flow to electrical equipment. Its primary function is to safely and efficiently establish or interrupt electrical connections in main power circuits, typically for starting, stopping, and protecting industrial motors, heating elements, and lighting systems. The specific 220V AC control coil allows for easy integration into automated control systems that utilize this widely available voltage, enhancing both operational safety and overall system efficiency.

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