ABB XT1SU3045AFF000XXX 45A 3P 600V Circuit Breaker | AmpState

Meet the ABB XT1SU3045AFF000XXX — a purpose-built circuit breaker engineered for reliable protection in panelboards, load centers, and electrical distribution networks. With a direct part-number match that matters for maintenance teams, panel builders, and spare inventories, this unit keeps critical systems safeguarded without the guesswork.

• Amperage: 45 A
• Poles: 3
• Voltage: 600 V
• Manufacturer / Part: ABB XT1SU3045AFF000XXX
• Product Type: Circuit Breaker

This XT1 design is a fit-for-purpose solution for three-phase electrical distribution, delivering dependable overcurrent protection in environments where space, compatibility, and quick maintenance are priorities. It’s ideal for panel builders assembling multi-circuit boards, maintenance crews stocking reliable spare parts, and facilities that rely on consistent, factory-tested components to minimize downtime.

Why this ABB part stands out

• Direct part-number match reduces parts ambiguity and streamlines procurement, saving time on audits and replacements.
• 3-pole, 600 V construction supports common industrial three-phase distribution setups, helping protect motors, feeders, and other critical loads.
• Designed for durable performance in panelboards and load centers, aligning with ABB's reputation for dependable protection and long service life.
• Available from AmpState as a trusted source for genuine ABB components, ensuring authentic specifications and compatibility.

Practical use cases

• Replacing a failed breaker in an existing ABB XT1-based installation to maintain consistent protection ratings and trip characteristics.
• Stocking spare units for rapid field service in manufacturing lines, data centers, or commercial buildings with three-phase circuits.
• Integrating into new panel builds where a precise 45 A, 3-pole, 600 V rating is required for balanced three-phase protection.

How to confirm fit and availability

If you’re unsure about compatibility with your existing panels or distribution boards, Message us and we’ll help you confirm fit. AmpState specialists can verify electrical compatibility, mounting, and accessory alignment to ensure a smooth replacement or upgrade path.