ABB XT1NU3040AFF000XXX Circuit Breaker, 40A, 3-Pole, 347V

ABB XT1NU3040AFF000XXX Circuit Breaker is a rugged, three-pole protective device built for industrial electrical service, maintenance, and replacement projects. With a 40 A rating and a 347 V operating voltage, it safeguards three-phase power distribution while keeping downtime to a minimum.

• Three-pole configuration provides balanced protection for 3-phase circuits, simplifying wiring and coordination in industrial panels.
• 40 A nominal rating suits motor feeders and distribution circuits that require reliable overcurrent protection without nuisance tripping.
• 347 V operating voltage aligns with common commercial and industrial power systems, ensuring compatibility with typical 3-phase networks.
• Part Number XT1NU3040AFF000XXX for precise fit and compatibility—verify the part number against your specific application requirements.
• Industrial-grade construction designed for demanding environments, delivering consistent performance in service or replacement projects.
• Clear compatibility support and assistance available—if you need help matching a part number or confirming suitability, we’re ready to assist.

Ideal use cases

• New installations in facilities with 3-phase power distribution
• Maintenance or replacement of aging protection in panel boards and distribution boards
• Motor control and feeder circuits where reliable 3-phase protection is essential

What makes this ABB breaker stand out

• Backed by ABB engineering, offering dependable protection for critical industrial operations
• Specifically designed for 347 V systems, giving confidence in non-residential electrical environments
• Part-number-driven compatibility reduces guesswork in procurement and installation

Notes: Verify fit by part number XT1NU3040AFF000XXX and by your application requirements. Need help matching a part number or confirming compatibility? Message us and we’ll help.