ABB XT5NQ330AFFF000XXX Circuit Breaker, 300A, 3-Pole, 600V

ABB XT5NQ330AFFF000XXX Circuit Breaker — a rugged 300 A, 3-pole device built for demanding industrial power distribution. Designed for use in 600 V systems, this unit is commonly associated with the On Circuit Breaker Tmax XT series, delivering dependable overcurrent protection for essential electrical infrastructure in manufacturing, processing plants, and heavy-duty facilities.

Key reasons to choose this XT5NQ330AFFF000XXX

• High-current protection: 300 A rating provides robust safeguarding for large feeders and motor circuits.
• Three-pole configuration: Balanced, three-phase protection that fits compactly into multi-pole panels.
• 600 V system readiness: Suitable for standard industrial voltage levels commonly found in factory floors and plant distributions.
• Part-number based compatibility: Verify fit by using the exact part number XT5NQ330AFFF000XXX and by reviewing your specific application requirements.
• XT series alignment: Designed to integrate smoothly within the Tmax XT family for streamlined maintenance and stocking considerations.

Practical guidance for procurement and maintenance: confirm compatibility by matching the exact part number to your equipment’s specification and the intended application. If you need help verifying fit or identifying the best configuration for your system, reach out — we’re ready to assist with compatibility checks and recommendations.

Ideal use cases

This breaker is well-suited for industrial electrical service, ongoing maintenance programs, and replacement projects where uptime matters and protection precision is critical. Use cases include large-scale manufacturing lines, processing equipment, and three-phase distribution networks that rely on reliable, high-current interruption at 600 V.