ABB XT5HQ340AFFF000XXX Circuit Breaker, 400A, 3-Pole, 600V

Meet the ABB XT5HQ340AFFF000XXX Circuit Breaker—a robust, industrial-grade protection device engineered for three-phase power systems. With a 400 A rating, a 3-pole design, and a 600 V rating, this breaker is built to safeguard demanding electrical runs in manufacturing floors, warehouses, and other heavy-duty facilities.

Part of ABB’s XT5 On Circuit Breaker family, this unit is purpose-built for service, maintenance, and replacement projects where reliable interruption of fault currents is non-negotiable. To ensure a perfect fit, verify compatibility by matching the exact part number: XT5HQ340AFFF000XXX. If you’re unsure, message us and we’ll help confirm compatibility with your application.

• Three-pole protection: Ensures balanced, comprehensive safeguarding across all phases of a 3-phase system.
• 400 A continuous rating: Well-suited for main feeders and large distribution circuits in industrial environments.
• 600 V maximum voltage: Compatible with typical industrial power distribution setups.
• XT5 series compatibility: Consistent performance characteristics and simple replacement within the XT5 On Circuit Breaker family.
• Designed for practical maintenance and replacement: Streamlines panel upgrades, routine servicing, and component refresh in critical facilities.

This part is ideal for engineers and technicians managing industrial electrical service, maintenance schedules, or panel replacement projects who need a reliable, field-verified part number. Use the provided XT5HQ340AFFF000XXX designation to confirm fitment with your equipment and application requirements. If you need personalized assistance with compatibility, simply reach out—we’re ready to help you plan a seamless, downtime-minimizing solution.