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Rockwell Automation 140U-J6D3-D12-AJ Molded Case Circuit Breaker

The Allen-Bradley 140U-J6D3-D12-AJ Molded Case Circuit Breaker is designed for reliable and efficient circuit protection in industrial applications. It offers robust performance, ensuring safety and continuity in critical operations.

Rockwell Automation 140U-J6D3-D12-AJ Molded Case Circuit Breaker

Stoker Automation Technology has been a trusted industrial automation supplier for over 20 years, operating from a 5,000m² warehouse. We specialize in critical components for industries including energy, manufacturing, and construction, with guaranteed quality and rapid delivery.

Engineered for demanding industrial environments, the Rockwell Automation 140U-J6D3-D12-AJ delivers robust protection against overloads and short circuits. This industrial-grade circuit breaker integrates seamlessly into control systems, enhancing operational safety while minimizing downtime.

Key Specifications:

  • Frame Size: Standard
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Interrupting Capacity: 100kA at 600V
  • Connection Type: Terminal Lug
  • Certifications: UL, CSA, CE
  • Operating Temperature: -30°C to +70°C

Constructed with premium materials, this Allen-Bradley breaker features:

  • High-visibility status indicators for instant fault diagnosis
  • Tool-free installation for rapid deployment
  • IP20-rated enclosure for dust protection
  • Vibration-resistant design for heavy machinery applications

Ideal for manufacturing plants, power distribution systems, and construction sites, it provides critical circuit protection with maintenance-free operation.

Rockwell 140U-J6D3-D12-AJ front view
Rockwell 140U-J6D3-D12-AJ side view
Rockwell 140U-J6D3-D12-AJ terminal detail

Professional Support

All Rockwell Automation products include 24-month warranty coverage. Our engineering team provides:

  • Pre-sales technical consultation
  • Installation guidance documents
  • Priority replacement service
  • Emergency 72-hour response for critical failures

Can’t find your specific model? Contact us via WhatsApp for customized solutions.

Email technical queries: abbdcs36@gmail.com




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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:

    abbdcs36@gmail.com

    whatsapp:

    +86 19066591275

    Address:

    60 Des Voeux Road Central, Hong Kong, China

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