Industrial A4LC400 400A Circuit Breaker

Meet the Industrial A4LC400 400A Circuit Breaker — a rugged, reliable protector engineered for demanding industrial power systems. With the part number A4LC400 and a 400 A current rating, this breaker is built to interrupt fault currents quickly, safeguarding critical equipment such as motors, transformers, and distribution panels while helping to minimize downtime in busy facilities.

• 400 A current rating provides sturdy protection for high-load feeders and essential circuits
• Industrial‑grade construction designed to withstand the vibration, temperature swings, and dust common in factory settings
• Designed for straightforward integration into standard industrial panels and distribution layouts
• Clear, decisive tripping and a simple reset process to reduce maintenance time after a fault
• Durable, long‑life operation suited to continuous use in demanding production environments

Ideal applications — The A4LC400 excels in protecting feeders and power distribution across manufacturing lines, processing plants, warehousing operations, and other heavy-duty industrial environments. It’s well-suited for motor circuits, vital machinery feeders, and critical panelboard protection where reliability matters most.

• Industrial panels and distribution boards requiring a robust 400 A protection point
• Motor control centers and heavy equipment wiring that demand dependable fault interruption
• High-use production lines where uptime and safe shutdowns are priorities

What makes the A4LC400 stand out is its combination of capacity and rugged practicality. This isn’t a generic breaker — it’s a purpose-built solution identified by the A4LC400 part number, designed to integrate with existing industrial systems and deliver consistent protection over time. It helps you reduce unplanned outages, protect valuable assets, and simplify maintenance routines in environments where every minute counts.

Practical considerations for installation and care — Ensure the breaker is compatible with your panel or enclosure and that its current rating aligns with the protected circuit’s demand. Handle installation with clean, secure connections and schedule routine inspections to verify terminals and mounting remain tight and free of corrosion. For best results, keep a spare on hand for rapid replacement during planned maintenance or swift fault recovery.