ABB SPAJ142C RS611006-AA Ground Fault Protection Relay

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• Product Overview

  The ABB SPAJ142C (RS611006-AA) is a high-performance ground fault protection relay designed for low- and medium-voltage power systems. It monitors ground faults or leakage currents and quickly triggers alarms or disconnects power to protect equipment and personnel. The SPAJ142C supports adjustable settings to meet the requirements of various industrial and building environments, providing reliable ground fault protection.

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  Technical Specifications

  • Model: SPAJ142C

  • ABB Part Number: RS611006-AA

  • Type: Ground Fault Protection Relay

  • Rated Operational Voltage: 230 / 400 V AC

  • Detection Current Range: 30 mA – 300 mA adjustable

  • Trip Delay: 0.1–1 s adjustable

  • Output Type: Relay output (NO / NC)

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

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

  • Protection Class: IP20

  • Mounting: DIN rail

  • Standards & Certifications: IEC 60947-2, CE

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  Features & Advantages

  • High sensitivity to detect ground fault currents as low as 30 mA

  • Fast response with adjustable trip delay for timely disconnection or alarm

  • Multi-functional relay output for direct control of circuit breakers or alarms

  • Compact design suitable for industrial and building distribution panels

  • Easy DIN rail installation and maintenance

  • Industrial-grade components ensure long-term reliable operation

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  Application Areas

  • Industrial low- and medium-voltage distribution systems

  • Motor and pump station ground protection

  • PLC and automation system ground monitoring

  • Commercial and residential power safety

  • Data centers, hospitals, and critical equipment power protection

  • Factory production lines and energy management systems

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  Precautions

  • Ensure supply voltage and wiring comply with specifications before installation.

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

  • Avoid high humidity, corrosive, or high-vibration environments; use protective housing if necessary.

  • Regularly check relay output status and ground protection operation.

  • Follow rated detection current and delay settings to ensure reliable relay operation.

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The structure and details of the product：

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