Schneider Electric | FJA140405 | Circuit Breaker | 40A | 1-Pole

Schneider Electric’s FJA140405 circuit breaker is a purpose-built protective device designed for single‑phase systems. With a 40A rating and a single pole, it provides dependable overcurrent protection for maintenance, retrofit, and replacement projects where exact specifications matter.

• 40A, 1-Pole — ideal for protecting single‑phase circuits in compatible panels.
• Exact part reference — FJA140405 is the definitive compatibility identifier, helping ensure a proper fit and reliable operation.
• Maintenance and retrofit ready — smoothly replace aging breakers or upgrade a panel to align with current electrical requirements.

Why choose this specific part? When your project requires precision matching, using the exact part number (FJA140405) minimizes the guesswork and helps maintain electrical integrity. This is especially valuable in retrofit and replacement scenarios where panel labeling and prior configurations hinge on precise form and function.

• — replace a failed 40A single‑pole breaker in a residential or light commercial panel; retrofit an existing setup to restore safe circuit protection; perform routine maintenance to keep electrical systems compliant and protected.
• — technicians and professionals carrying out panel servicing, upgrades, or component refreshes that require Schneider Electric’s OEM specification.
• — reestablishes reliable circuit protection for specific 40A circuits, helping prevent overloads and electrical hazards in connected equipment and loads.

How to verify compatibility — before ordering, cross-check the panel’s labeling and the installed breakers to confirm that the exact part number (FJA140405) and the 1‑pole, 40A configuration match your system’s requirements. The part number is the most reliable reference for ensuring a safe, proper fit.

Quick installation and safety notes — always power down the service, follow the panel manufacturer’s installation guidelines, and use appropriate tools and torque specifications. If you’re not fully confident in performing the replacement, consult a licensed electrician to ensure safe, compliant operation.