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Rockwell Automation 140U-N-U D Circuit-Breaker Accessory for Industrial Control Systems

The A-B 140U-N-UD Circuit-Breaker Accessory is designed to increase the breaking capacity of circuit breakers, ensuring reliable and safe operation in electrical systems.

Rockwell Automation 140U-N-U Circuit-Breaker Accessory

About Stoker Automation Technology: With 20+ years of industrial automation expertise, we maintain a 5000m² warehouse stocked with 10,000+ industrial components. Serving metallurgy, oil/gas, power generation, automotive and 15+ other critical industries worldwide.

Engineered for demanding industrial environments, the Rockwell Automation 140U-N-U Circuit-Breaker Accessory delivers fail-safe short-circuit protection for electrical control systems. This UL-certified component ensures operational continuity by preventing catastrophic equipment damage during overload scenarios.

Technical Specifications

  • Manufacturer: Rockwell Automation
  • Model: 140U-N-U
  • Type: Circuit-Breaker Accessory
  • Voltage Rating: 690V AC
  • Current Rating: 32A
  • Protection Class: IP20
  • Dimensions: 100×50×20 mm
  • Certifications: CE, UL, RoHS

Operational Advantages

  • Seamless Integration: Direct compatibility with Rockwell Automation control systems minimizes installation downtime
  • Robust Construction: Industrial-grade materials withstand extreme temperatures (-25°C to +70°C) and vibration
  • Precision Protection: 5ms response time prevents arc flash incidents and equipment damage
  • Maintenance Efficiency: Tool-free installation reduces service interruptions by 40%
Rockwell 140U-N-U Circuit Breaker Accessory

Professional Support

All Rockwell components include our exclusive 2-year performance warranty. Our engineers provide:

  • Pre-sales technical consultation for system integration
  • 24-hour emergency replacement service
  • On-site troubleshooting support (available in 15 countries)

Can’t find your required model? Contact our specialists via WhatsApp for immediate assistance with obsolete or hard-to-find components.




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    Stoker Automation Technology
    Professional Supplier of Automation Spare Parts

    Core Business:

    DCS, PLC, robotic control systems, and large servo system spare partsLeading brands: Allen Bradley, Bently Nevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, ALSTOM, B&R, FOXBORO, Schneider PLC, KOLLMORGEN, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft, and more

    Core Strengths:

    Expert Team: Sales and technical teams work closely to respond quickly to customer needs

    Efficient Service: Accurate quotations, global air shipping, and a well-established logistics system

    After-Sales Support: High-quality after-sales service to ensure customer satisfaction

    Contact Us:

    WhatsApp: +86 19066591275

    Email: abbdcs36@gmail.com

    Stoker Automation Technology—Your Expert in Automation Spare Parts Solutions!

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    Phone numbers:

    +86 19066591275

    E-mail:

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    +86 19066591275

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