Schneider Electric | A9N19819 | Circuit Breaker | 100A | 4-Pole | 400V

Schneider Electric A9N19819 circuit breaker is a trusted OEM protection device designed for modern electrical distributions. With a 100 A rating, a 4-pole configuration, and a 400 V operating range, it provides robust protection for 3-phase systems while maintaining clean, reliable isolation when trips occur.

Designed for maintenance, retrofit, and replacement projects, this A9N19819 unit integrates seamlessly with Schneider Electric panels and accessories, ensuring consistent performance across your installation. The part number A9N19819 is the best reference for compatibility, so start with that in your parts checks and confirm the fit and ratings before ordering.

Key benefits

• Exact fit for Schneider Electric ecosystems: OEM design matches industry-standard mounting, electrical interfaces, and trip characteristics within supported panels.
• Four-pole protection: Delivers balanced three-phase protection with an accompanying neutral path, ideal for 3-phase feeders and distribution boards.
• High-current reliability: 100 A rating supports main feed protection for equipment and circuits without sacrificing selectivity.
• Standard 400 V operation: Suits common industrial network voltages, enabling straightforward retrofits in existing installations.

Ideal use cases include upgrading aging service panels, retrofitting control panels in manufacturing lines, and replacing worn breakers during routine maintenance. If you manage a Schneider Electric system, choosing the A9N19819 helps maintain system coherence, reduces compatibility risk, and minimizes downtime during replacements.