ABB XT4NU3250AY8000XXX 250A 3P 600V Circuit Breaker, Bolt-On | AmpState

Meet the ABB XT4NU3250AY8000XXX, a purpose-built 250 A, 3-pole bolt-on circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution systems. Built for everyday electrical work, this unit is a practical, high-availability solution for retrofit projects and maintenance planning where keeping the exact part number matters for inventory and service reliability.

Key features

• Amperage: 250 A
• Poles: 3
• Maximum voltage: 600 V
• Mounting: Bolt-On design for secure, straightforward installation in compatible enclosures
• Application: Circuit protection for panelboards, load centers, and electrical distribution networks
• Manufacturer: ABB
• Part number: XT4NU3250AY8000XXX
• Availability: Ready to ship from AmpState

Practical use cases

• Retrofit projects where you need to maintain a consistent part number across replacements and spares, ensuring faster service and easier maintenance scheduling.
• Upgrading or reinforcing high-load feeders in commercial or light industrial panelboards and distributed electrical systems.
• Situations demanding a three-phase, 600 V protection device that can reliably handle demanding electrical distribution without frequent replacements.
• Inventory planning for facilities that require standardized components to streamline procurement and onsite support.

Why this ABB circuit breaker stands out

The XT4NU3250AY8000XXX combines ABB’s trusted protection performance with a bolt-on design that simplifies field installation and reduces downtime. Its 250 A rating paired with a 3-pole configuration delivers balanced protection across three-phase circuits, making it ideal for modern commercial and industrial environments. The 600 V rating expands its versatility across a range of distribution systems, while the bolt-on mounting supports fast, secure integration into compatible enclosures—minimizing service interruptions during replacement or upgrades.

Reliability, compatibility, and expert support

Choosing ABB means selecting a time-tested approach to electrical protection, with parts designed for long service life in demanding environments. If you’re unsure about compatibility, AmpState offers support to confirm fit and ensure the XT4NU3250AY8000XXX integrates seamlessly with your panelboard or load center. Need help matching a part number or confirming compatibility? Send a message—we’ll help you verify the correct fit for your system.