Schneider Electric PLL34040CU33A Circuit Breaker, 400A, 3-Pole

The Schneider Electric PLL34040CU33A Circuit Breaker is a rugged, industrial-grade protective device designed for high-demand electrical service, maintenance, and replacement projects. With a 400 A rating across 3 poles, it delivers reliable, coordinated protection for three-phase systems where downtime isn’t an option.

Key specs at a glance

• Current rating: 400 A
• Poles: 3
• Part number: PLL34040CU33A
• Application: Industrial service, maintenance, and replacement work

Why this matters

In demanding industrial environments, protecting three-phase equipment from overloads and faults is crucial. The PLL34040CU33A is built to withstand the rigors of continuous operation while delivering precise interruption when thresholds are exceeded. Using an OEM part ensures compatibility with your existing panel architecture, protective coordination, and electrical characteristics, helping to minimize downtime and maintenance complexity.

What sets it apart

• OEM Schneider Electric quality: Precisely engineered to meet Schneider Electric’s specifications for reliable protection and dependable performance.
• Part-number driven compatibility: Use PLL34040CU33A to confirm fit for your panel and application requirements, reducing guesswork during replacements.
• Industrial-duty design: Built to endure the demands of large facilities and continuous operation while safeguarding critical loads.

Who it's ideal for

• Facilities engineers, plant maintenance teams, and electrical contractors performing upgrades, replacements, or scheduled service on 3-phase power systems
• OEMs and system integrators specifying Schneider Electric components for panel builds and retrofits

Use cases and practical tips

• Replacement during preventive maintenance or after protective-device testing in 3-phase distribution networks
• Part of a reliable spare inventory for critical production lines where uninterrupted service is essential
• Always verify fit by cross-checking the part number with your panel diagram and ensuring the application requirements align with electrical ratings and protection needs

Need help matching a part number or confirming compatibility? Message us with the part number PLL34040CU33A and your application details, and we’ll assist with validation and next steps for your installation or replacement project.