ABB XT3NU3175AFF000XXX 3175A 3-Pole 347 V Circuit Breaker

Introducing the ABB XT3NU3175AFF000XXX 3175A 3-Pole 347 V Circuit Breaker — a purpose-built protection device engineered for demanding industrial power systems. This genuine ABB component delivers dependable overcurrent protection for large three-phase circuits, ensuring your critical equipment stays safeguarded under real-world load conditions.

Core specifications at a glance

• Current rating: 3175 A
• Poles: 3-pole configuration for balanced three-phase protection
• Voltage rating: 347 V
• Part number: XT3NU3175AFF000XXX

Why this breaker stands out

• Industrial-grade reliability: Built to endure the rigors of heavy-duty electrical distribution, providing stable protection in demanding environments.
• Precise three-phase protection: The 3-pole design ensures synchronized disconnection across all phases, minimizing electrical stress and helping protect motors, transformers, and feeders from overloads.
• ABB compatibility: Designed to integrate seamlessly with ABB switchgear and XT3NU-based protection schemes, making replacement and retrofits straightforward for existing installations.
• Clear procurement and maintenance path: The exact part number XT3NU3175AFF000XXX simplifies ordering, spare-part planning, and service logging for ongoing reliability.

Ideal use cases

• Main protection for large distribution panels feeding heavy machinery, pumps, conveyors, and process lines
• Protection of three-phase feeders in manufacturing plants, data centers, and industrial facilities
• Retrofit or replacement in existing ABB protection schemes to restore optimal safeguard levels

Practical guidance for installation and operation

Before installation, confirm that your system operates at 347 V (line-to-line) and that the current demand aligns with the 3175 A rating. This circuit breaker is intended for use as a protective device within appropriate ABB protection architectures. Always rely on qualified electrical personnel for installation, wiring, commissioning, and periodic maintenance to ensure safe and compliant operation.

With the ABB XT3NU3175AFF000XXX, you’re choosing a trusted, high-capacity solution that emphasizes reliability, precision, and compatibility with your existing ABB infrastructure — delivering safer, more resilient power distribution in industrial settings.