ABB MPSIII-6644424A1 Voltage Bus Monitoring Component

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  • Product Overview

    The ABB MPSIII-6644424A1 is a high-performance voltage bus monitoring component designed for low- and medium-voltage distribution systems. It monitors bus voltage in real-time, detecting overvoltage, undervoltage, and voltage fluctuations, providing output signals for alarms or control system integration. MPSIII-6644424A1 is compact, easy to install, and widely used in industrial automation, power distribution, and energy management systems.

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    Technical Specifications

    • Model: MPSIII-6644424A1

    • Type: Voltage Bus Monitoring Component

    • Rated Monitoring Voltage: 230–480 V AC / 50–60 Hz

    • Monitoring Range: ±10% of rated voltage

    • Output Signal: Relay contact output (NO / NC)

    • Response Time: ≤ 100 ms

    • Supply Voltage: 24 V DC / 110–230 V AC (version dependent)

    • Operating Temperature: -20°C to +60°C

    • Protection Class: IP20

    • Mounting: DIN rail

    • Standards & Certifications: IEC 60947-1 / CE

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    Features & Advantages

    • High-precision monitoring ensures stable bus voltage operation

    • Fast response (≤100 ms) for timely fault alarm

    • Multi-functional relay output can control alarms or protection systems

    • Compact design suitable for distribution panels and industrial cabinets

    • Easy installation and maintenance via DIN rail

    • Industrial-grade components for long-term reliability

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    Application Areas

    • Industrial low- and medium-voltage distribution systems

    • Power monitoring and remote control systems

    • PLC and automation system voltage monitoring

    • Data centers and critical equipment power monitoring

    • Production lines and energy management systems

    • Building and commercial power systems

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    Precautions

    • Ensure supply voltage and monitoring voltage range match before installation

    • Perform wiring and maintenance only in a de-energized state

    • Avoid high temperature, high humidity, and corrosive environments; use protective housing if necessary

    • Regularly check relay outputs and bus voltage monitoring status

    • Follow rated parameters and environmental requirements in the product manual for long-term reliable operation

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The structure and details of the product：

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