Eaton | FDB4030 | Circuit Breaker | 30A | 4-Pole

Introducing the Eaton FDB4030 Circuit Breaker — a precise, ready-to-install 30A, 4-Pole protection device designed for Eaton panel ecosystems. Built for maintenance, retrofit, and replacement, this breaker helps you keep electrical systems safe, compliant, and performing at their best.

• Amperage: 30A — provides dependable overcurrent protection tailored to your load requirements.
• Pole configuration: 4-Pole — ensures reliable interruption of all current-carrying conductors in 3‑phase, 4-wire configurations for complete safety shutdowns.
• Part reference: FDB4030 — use this exact part number as your compatibility guide to match Eaton panels and accessories precisely.
• Application: Ideal for maintenance, retrofit, and replacement projects where matching specifications is essential to panel performance and safety.
• Fit notes: Confirm fit and ratings before ordering; the part number is the best reference to ensure seamless integration with your existing Eaton infrastructure.

Why the 4‑Pole design matters
In systems that require disconnect of all conductors, a 4-Pole circuit breaker delivers comprehensive protection by trip-disconnect across every line and neutral. This configuration is especially valuable for 3‑phase installations, ensuring coordinated protection and simplifying compliance with electrical codes during upgrades or service work.

Who benefits most
- Facilities operating Eaton distribution panels that specify FDB4030 for compatibility and performance guarantees
- Maintenance teams performing panel refreshes or parts replacement with minimal downtime
- Architects and engineers designing or updating 3‑phase, 4‑wire systems seeking reliable, per-spec protective devices

Practical considerations and tips
- Use the exact part number FDB4030 as your primary compatibility check to avoid mismatches in panel design or trip characteristics.
- When planning a retrofit, map the existing breaker’s amperage, pole count, and mounting style to ensure a smooth swap-in replacement without modifying surrounding circuitry.
- Always de-energize and lockout/tagout the panel before replacing breakers, and consult your panel’s labeling to verify alignment with Eaton’s protection scheme.