ABB XT5HQ340AGFF000XXX Circuit Breaker, 400A, 3-Pole, 600V

Engineered by ABB for demanding industrial environments, the ABB XT5HQ340AGFF000XXX is a robust circuit breaker designed to protect 600V three-phase electrical systems. With a 400 A rating and 3-pole configuration, this unit provides reliable overcurrent protection for heavy machinery, motor circuits, and distribution panels in service, maintenance, and replacement projects.

Key specifications at a glance

• Manufacturer: ABB
• Part number: XT5HQ340AGFF000XXX
• Product type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 600 V

Ideal applications

• Industrial electrical service panels and main distribution boards
• Maintenance and retrofit projects where dependable 3‑phase protection is required
• New installations and replacements in facilities with 600 V three-phase systems

Why this ABB circuit breaker stands out

The XT5HQ340AGFF000XXX combines ABB’s trusted protection engineering with a high-amperage 400 A rating, making it well-suited for protecting heavy loads and high-demand equipment. The 3-pole design ensures balanced protection across all three phases, helping prevent uneven current scenarios that can stress motors and transformers. By selecting the exact part number XT5HQ340AGFF000XXX, you’re choosing a component designed to meet precise compatibility and performance expectations for industrial panels and procurement workflows.

Important compatibility notes

Verify fit by the exact part number and application requirements to ensure seamless integration with your panelboard or switchgear. If you’re unsure whether this specific model matches your equipment, reach out with the part number and system details—we’re available to help confirm compatibility and suggest the best fit for your installation.

Practical usage tips

• Coordinate with a licensed electrician to assess panel compatibility, conductor sizing, and mounting provisions.
• Cross-check your facility’s electrical distribution plan to ensure this 400 A, 3‑pole device aligns with your protection strategy and downtime tolerance.
• Maintain accurate records of part numbers for future replacements or service updates to minimize downtime and ensure consistency across spares.