Eaton | KD4350 | Circuit Breaker | 350A | 4-Pole

Meet the Eaton KD4350 Circuit Breaker — a rugged, high-current protection device designed for demanding electrical environments. With a 350A rating and a 4-pole configuration, this KD4350 model is built for reliability in maintenance, retrofit, and replacement projects where exact specifications matter. If your goal is to preserve system protection while upgrading components, this breaker delivers a precise fit and consistent performance within Eaton’s protection family.

• Amperage: 350A
• Poles: 4-Pole
• Part reference: KD4350
• Best use cases: maintenance, retrofit, and replacement where matching specs are required

The 4-pole design supports protection for three-phase electrical systems with a neutral, enabling synchronized trip across all conductors. Choosing the Eaton KD4350 helps maintain the original protection scheme of your panel, reducing the risk of mismatched trip characteristics during upgrades or repairs.

Who benefits most

• Electrical contractors performing panel retrofits or replacements in industrial or commercial facilities
• Facilities managers seeking a like-for-like spare or a precise compatibility reference to minimize downtime
• Maintenance teams prioritizing exact spec matching to preserve existing protection coordination

Why this matters

Compatibility is the foundation of reliable protection. The KD4350’s exact amperage and four-pole configuration ensure you preserve trip coordination and current rating—critical for safe, uninterrupted service in high-demand applications. When in doubt, the KD4350 part number is the best reference for compatibility, helping you avoid mismatches that could complicate installations or require panel changes.

Tips for selection and installation

• Always confirm fit and ratings before ordering to ensure the breaker matches your panel and bus configuration
• Use the KD4350 as a definitive reference when cross-checking against your existing Eaton equipment or panel catalog
• Consult a licensed electrician to verify proper installation, wiring, and torque specifications appropriate to your system’s standards
• Store spare units in their original packaging in a dry, clean environment to prevent corrosion or contamination

For projects that demand precise specification alignment, the Eaton KD4350 350A, 4-pole circuit breaker offers dependable protection, straightforward compatibility, and peace of mind during maintenance, retrofit, or replacement work.