ABB OA1G10 auxiliary contacts

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• 1. Product Overview

  The ABB OA1G10 is an Auxiliary Contact designed for use with ABB circuit breakers, contactors, and other control devices to provide signal feedback or extend control logic. The OA1G10 is compact, highly reliable, and can be easily mounted on existing devices for additional monitoring and control functions.

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  2. Detailed Technical Specifications

  • Model: OA1G10

  • Type: Auxiliary Contact

  • Contact Configuration: 1 NO + 1 NC

  • Rated Current: 6 A @ 250 V AC / 30 V DC

  • Maximum Operating Voltage: 250 V AC / 30 V DC

  • Mechanical Life: ~1,000,000 operations

  • Electrical Life: ~100,000 operations (rated load)

  • Mounting: Directly on circuit breakers or contactor modules

  • Operating Temperature: –25 ℃ to +70 ℃

  • Protection Class: IP20

  • Standards & Certification: IEC 60947-5-1, CE

  • Applicable Devices: ABB MCBs, miniature circuit breakers, contactors, and modular control devices

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  3. Advantages & Features

  • High reliability: industrial-grade design for long-term stable operation

  • Compact design: small size, can be directly attached to breakers or contactors

  • Multi-functional contacts: 1 NO + 1 NC for versatile signal feedback

  • Easy installation: no extra tools required

  • Maintenance-friendly: clear contact status for easy troubleshooting

  • Broad compatibility: works with multiple ABB breaker and contactor models

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  4. Typical Application Areas

  • Industrial automation control systems

  • Signal feedback for PLC and DCS systems

  • Motor protection and control

  • Power distribution monitoring

  • Remote status indication of breakers

  • Signal expansion and alarm systems for industrial equipment

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  5. Precautions & Installation Notes

  • Confirm device model and contact compatibility before installation

  • Do not install or remove contacts while live

  • Ensure wiring is secure to avoid poor contact

  • Avoid installation in high temperature, high humidity, or high EMI environments

  • Regularly check contact status for reliable feedback

  • Follow industrial electrical safety guidelines

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The structure and details of the product：

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