Schneider Electric FJA140401 40A 1-Pole 277 V Circuit Breaker

Schneider Electric FJA140401 is a 40A, 1‑Pole circuit breaker designed for 277 V electrical systems, delivering reliable overcurrent protection for single‑phase circuits in commercial and light industrial environments.

With a 277 V rating, this breaker is ideal for protecting branch circuits that power commercial lighting, control panels, and other equipment in office buildings, retail spaces, and warehouses. Its 1‑pole design means it's intended for a single live conductor setup, making it compact for space‑constrained electrical panels.

• Current rating: 40 A — provides precise protection for circuits that routinely handle elevated loads and minimize nuisance trips on steady, predictable demand.
• Voltage rating: 277 V — optimized for commercial lighting and devices that operate at high line voltage environments.
• Single-pole configuration — streamlined protection for one hot conductor in standard 120/208/277 V distribution schemes.
• Part number: FJA140401 — clear specification matching and easy replacement in Schneider Electric systems.
• Brand you can trust — Schneider Electric's engineering lineage and global service network support maintenance and uptime in critical spaces.

Practical scenarios:

• Upgrading a lighting panel in a retail store to handle increased load without sacrificing safety.
• Installing new 277 V lighting feeds in office corridors where space is at a premium and quick replacement is essential.
• Retrofits in commercial kitchens or warehouses where a robust single‑pole breaker protects a dedicated 40 A circuit.

How this differs from other breakers:

• Designed specifically for 277 V, making it a targeted choice for commercial electrical design where higher voltage on branch circuits is common—an edge over generic 120/240 V breakers when the application demands 277 V protection.
• Part-specific compatibility (FJA140401) reduces the guesswork during panel replacements and ensures reliable performance with Schneider Electric panels.

Installation notes:

• Ensure the circuit and panel are rated for 277 V operation and that the 40 A current rating aligns with your protected load. Follow local electrical codes and use proper safety procedures during installation.