Eaton FDB3090 90 A 600 V 3-Pole Bolt-On Circuit Breaker

The Eaton FDB3090 is a rugged 90 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered to protect your most critical electrical circuits. Built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, this unit delivers confident performance in daily operation and demanding environments alike.

• Amperage rating: 90 A
• Voltage rating: 600 V
• Poles: 3-pole
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit protection and short-circuit protection in panelboards/load centers

Why this breaker stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection that minimizes loosening over time, even in environments with equipment movement or vibration.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining thermal overload protection with magnetic short-circuit fast-tripping, helping prevent damage to downstream devices and wiring.
• OEM-ready compatibility is designed to work with matching OEM load centers and panelboards, ensuring straightforward replacement or upgrades without mismatched fittings.
• Versatile across sectors suitable for residential, commercial, and light industrial applications where reliable three-phase or single-phase protection is required.

Ideal use cases

• New installations and panelboard upgrades in homes, offices, retail spaces, and small-to-midsize facilities needing robust branch circuit protection.
• Retrofits in existing panelboards where a durable, bolt-on solution is preferred for long-term reliability.
• Protection for three-phase motor circuits, HVAC equipment, pumps, and other branch circuits in light industrial environments.
• Situations requiring consistent protection against both overload and short-circuit events, reducing nuisance trips and downtime.

How it helps your electrical system

The FDB3090 brings a practical balance of protection, reliability, and installation convenience. Its bolt-on design minimizes connection issues in vibration-prone settings, while the thermal-magnetic trip mechanism ensures fast clearance of faults without sacrificing normal operation. By aligning with OEM panelboard standards, it simplifies maintenance and component stocking for facilities managers and electricians alike. In short, it protects what matters most—your wiring, devices, and uptime—without compromising performance or compatibility.