ABB XT1NU3040AYD000XXX 40A 3P 600V Circuit Breaker | AmpState

Meet the ABB XT1NU3040AYD000XXX, a purpose-built circuit breaker designed to safeguard panelboards, load centers, and electrical distribution schemes in everyday electrical work. With a 40 A rating, 3 poles, and a 600 V operating capability, it delivers reliable protection for your electrical circuits while fitting seamlessly into established ABB systems.

Why professionals choose this model: it’s an OEM-grade replacement that keeps your BOM aligned to the original part number. When you replace like-for-like, you reduce compatibility risks, minimize downtime, and ensure the protective characteristics your system was designed to rely on remain intact—without guessing or improvising new components.

Key specifications at a glance

• Manufacturer: ABB
• Part Number: XT1NU3040AYD000XXX
• Product Type: Circuit Breaker
• Amperage: 40 A
• Poles: 3
• Voltage: 600 V
• Availability: AmpState

Practical use cases and benefits

• Swap in this exact ABB part to restore original protection schemes in legacy panelboards and distribution boards without compromising safety margins.
• BOM alignment: Keep inventory and purchasing simple by stocking the precise part number your equipment was engineered for, avoiding mismatched substitutes.
• A ready-to-install unit reduces lead times during maintenance outages, helping facilities stay online with minimal disruption.
• By using the same model across installations, you ensure uniform trip characteristics and predictable performance across the system.

Who benefits most

• Facilities managers maintaining mixed electrical fleets in commercial, industrial, or institutional environments
• Electrical contractors handling upgrades, retrofits, or service replacements in existing ABB installations
• Maintenance teams seeking dependable, OEM-grade parts to minimize compatibility issues and spare complexity

How this model compares to alternatives

• OEM-part exactness minimizes cross-reference hassles and BOM drift, ensuring plug-and-play compatibility with existing ABB panelboards and distribution setups.
• Designed for the same electrical ratings and form factors as the original installation, reducing the risk of mismatched protective behavior compared with generic substitutes.

Helpful note

• Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Available now from AmpState, the ABB XT1NU3040AYD000XXX is a dependable choice for maintaining consistency, reliability, and clear spare-planning in your electrical distribution strategy.