ABB XT5HQ340ABFF000XXX Circuit Breaker, 400A, 3-Pole, 600V

ABB XT5HQ340ABFF000XXX Circuit Breaker is a robust three-pole protection device built to keep heavy‑duty industrial systems safe and up and running. With a 400 A rating and a 600 V capability, this part is designed for demanding service, reliable interruption during faults, and seamless integration into three‑phase power environments.

Key specifications at a glance:

• Manufacturer: ABB
• Part Number: XT5HQ340ABFF000XXX
• Product Type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 600 V

Why this specific breaker matters

• Exact part number matching minimizes compatibility risk in industrial panels, switchgear, and distribution setups where precise trip characteristics and fitment are required.
• The 3‑pole configuration provides coordinated protection for three‑phase circuits, helping maintain system stability and preventing faults from cascading across phases.
• The 600 V rating aligns with typical industrial distribution networks, enabling safe installation in environments with elevated electrical requirements.

Use cases and deployment scenarios

• Industrial electrical service upgrades: reliable replacement where the XT5HQ340ABFF000XXX or an approved equivalent is specified.
• Maintenance projects: protection during servicing of motors, drives, and heavy equipment in manufacturing plants or facilities with three‑phase loads.
• Downtime planning: reduce unplanned outages by choosing a trusted ABB component with clearly documented compatibility.

How to verify compatibility

Use the part number XT5HQ340ABFF000XXX to confirm fitment with your equipment manual and your system requirements. If you’re unsure about compatibility, message us and we’ll help you match the right part number to your application.

Practical installation notes

• Ensure your system operates at or below 600 V and that a 3‑pole protection scheme matches your three‑phase configuration.
• Confirm that the 400 A rating aligns with the circuit conductors, bus rating, and protective device coordination in your panel or switchgear.
• Follow standard electrical safety and lockout/tagout procedures during replacement to minimize downtime and ensure safe re‑energization.