Eaton FDE322535 - 225 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton FDE322535 225A, 480V, 3-Pole Bolt-On Circuit Breaker is designed for dependable protection where heavy-duty distribution meets demanding panel environments. This molded-case circuit breaker combines rugged, vibration-resistant bolt-on mounting with a precise thermal-magnetic trip unit to deliver consistent protection for branch circuits in panelboards and loadcenters.

Why this breaker stands out

• Secure bolt-on mounting: A solid connection to the bus minimizes movement and wear in environments with vibration or frequent door cycling, helping maintain reliable electrical continuity over time.
• Thermal-magnetic trip unit: The combination of thermal (overload) and magnetic (short-circuit) protection provides stable, repeatable tripping behavior across a wide range of operating conditions.
• OEM-compatible design: Engineered to work with matching Eaton OEM loadcenters and panelboards, ensuring proper fit, alignment, and electrical performance without aftermarket-fit guesswork.
• High-capacity, safe protection: 225A at 480V makes it suitable for protecting feeders and large branch circuits in commercial and light-industrial settings, delivering reliable interruption when faults occur.

Technical snapshot

• Manufacturer: Eaton
• Part number: FDE322535
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage rating: 225 A
• Voltage rating: 480 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and use cases

Perfect for commercial and light-industrial panels where 3-phase, 480V distribution requires robust protection. Use cases include feeding large equipment rooms, protecting feeders to motors and transformers, and upgrading aging panels in offices, schools, data centers, retail spaces, and manufacturing facilities. The bolt-on design simplifies installation and service in panels designed for OEM bolt-on MCCBs, reducing mounting time and ensuring a secure, long-lasting connection.

Installation and practical considerations

Before installation, verify panelboard compatibility with Eaton OEM loadcenters and ensure the bus connection alignment matches the panel design. Plan for routine maintenance checks on bolt-on breakers in vibration-prone environments to confirm the mounting remains tight and the trip unit operates correctly. When replacing an existing breaker, confirm that the 225A, 3-pole, 480V rating aligns with the panel’s bus rating and the feeder protection requirements of the circuit.