Eaton | EHD3090Y | Circuit Breaker | 90A | 3-Pole | 480V

Eaton EHD3090Y Circuit Breaker delivers trustworthy protection for demanding 480V, three‑phase power systems. Engineered for maintenance, retrofit, and replacement projects, this 90A, 3‑pole unit ensures you can restore or upgrade critical electrical distribution with a component you can rely on. When exact specifications matter, the EHD3090Y is built to align with Eaton’s standards and your existing equipment. Key specifications

• Amperage: 90A
• Poles: 3-Pole
• Voltage: 480V

Why choose the Eaton EHD3090Y

• Designed for precise compatibility in 480V, three‑phase systems, reducing guesswork during replacement or retrofit.
• Part number reference: EHD3090Y — using this identifier helps ensure you’re ordering the exact unit your equipment was designed to use.
• Ideal for ongoing maintenance programs, equipment upgrades, or OEM replacements where matching ratings and form factor are critical.

Practical use cases

• Replacing a worn or tripped breaker in a 3‑phase 480V distribution panel without changing surrounding hardware.
• Retrofits that require a 90A, 3‑pole solution to upgrade existing circuits to meet current load and protection needs.
• Spare parts planning for industrial facilities that rely on Eaton components for consistency and serviceability.

Important compatibility notes

Before ordering, confirm fit and ratings match your equipment. The part number EHD3090Y is the best reference for compatibility, ensuring the new unit will integrate with your panel, bus, and wiring configurations without unexpected gaps or mismatches.

Tips for reliable installation and ongoing care

• Cross‑check the breaker’s amperage and voltage ratings against your system requirements to avoid overloading or underprotection.
• Store and handle the breaker according to standard electrical safety practices to preserve performance and reliability.
• Keep a current inventory of Eaton replacement parts to streamline future maintenance and minimize downtime.