ABB XT5HU330ABFN000XXX Circuit Breaker, 300A, 3-Pole, 600V

Meet the ABB XT5HU330ABFN000XXX Circuit Breaker—a rugged, industrial-grade protection device engineered for demanding electrical service, maintenance, and replacement projects. With a 300 A rating and a 600 V maximum, this 3-pole breaker delivers dependable, synchronized protection across all three phases, helping safeguard motors, feeders, and distribution panels in tough industrial environments.

Key Specifications

• Amperage: 300 A
• Poles: 3
• Voltage: 600 V
• Part Number: XT5HU330ABFN000XXX

Why this ABB Circuit Breaker Matters

In industrial settings, reliable overcurrent protection is non-negotiable. This 3-pole design ensures simultaneous disconnection of all phases, reducing the risk of phase imbalance and equipment damage during faults. Its 600 V rating makes it suitable for a wide range of distribution systems, while the 300 A capacity supports substantial motor loads and heavy feeders without compromising protection or performance.

Ideal Use Cases

• Main service entrances and distribution panels in manufacturing facilities
• Protection for large motor feeders and three-phase circuits
• Upgrades or replacements in older installations that require a 600 V, 300 A, 3-pole solution

Fit, Compatibility & Purchase Confidence

To ensure proper fit, verify the part number against your application requirements. Use the XT5HU330ABFN000XXX part number to confirm compatibility with your panel, bus, and system design. If you’re unsure about compatibility, message us and we’ll help validate fit by part number and application details.

Installation and Safety Overview

Installation should be performed by qualified electrical professionals. Ensure your equipment and enclosure are rated for 600 V and 300 A, and follow all applicable safety standards and manufacturer instructions. Proper terminal sizing, torque, and clearances are essential for reliable operation and safe maintenance access.

Why Choose ABB for Industrial Protection

ABB delivers protection solutions built for reliability in demanding environments. This circuit breaker combines straightforward 3-pole protection with a robust design, helping you reduce unplanned downtime and streamline maintenance planning for critical industrial systems.