Siemens 3MT8250-1AN27 Power Contactor 250A, 132kW, 400V, 220V AC, S10 Size Original Brand New

Overview

Siemens 3MT8250-1AN27 Power Contactor is a state-of-the-art, heavy-duty switching device meticulously engineered for superior motor control in diverse industrial environments worldwide. As a fundamental component of the globally acclaimed Siemens SIRIUS 3RT series, this 3-pole contactor stands out for its exceptional reliability, high-performance capabilities, and an extended operational lifespan, even under the most demanding conditions. It’s designed to ensure consistent and safe operation of critical machinery.

Function

The primary function of the Siemens 3MT8250-1AN27 is to establish and interrupt the main current circuit to an electrical load, typically a three-phase asynchronous motor. Operating under the AC-3 utilization category, it is optimized for efficiently switching inductive loads where breaking occurs while the motor is running. Its integrated auxiliary contacts provide critical signaling and control capabilities, enabling complex interlocking, status feedback, and advanced automation sequences. This makes it suitable for a wide range of applications from pumps and fans to heavy-duty machinery in manufacturing, mining, and infrastructure.

Key Features:

• Model: Siemens 3MT8250-1AN27 Power Contactor
• Poles: 3-pole configuration for controlling three-phase loads.
• Series: Siemens SIRIUS 3RT – Known for modularity, reliability, and compact design.
• Utilization Category: AC-3 – Specifically designed for switching asynchronous motors and other inductive loads.
• Rated Current (AC-3): 250 Amperes – High current handling for substantial motor loads.
• Rated Power (AC-3): 132 kW at 400V – Powerful capacity for large industrial motors.
• Control Coil Voltage: 220V AC, 50/60 Hz – Versatile coil compatible with global industrial power standards.
• Size: S10 – Robust yet designed for efficient space utilization.
• Terminal Type: Screw terminals – Ensures secure, reliable, and easy-to-wire connections for main and auxiliary circuits.
• Auxiliary Contacts: 4 Normally Open (NO) + 4 Normally Closed (NC) – Extensive contact configuration for complex control and signaling.
• Durability: High mechanical and electrical service life, guaranteeing long-term performance.
• Safety: Built to international safety and performance standards for reliable operation.

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