Square D LGA36400U33X 400A 3P 600V Circuit Breaker | AmpState

Square D LGA36400U33X is a 400A, 3-pole, 600V circuit breaker built for everyday electrical work. This Square D device delivers dependable circuit protection in panelboards, load centers, and broader electrical distribution systems. It's a smart pick for maintenance teams, panel builders, and spare inventory where a direct part-number match matters.

Key features and advantages:

• 400 Amp rating handles high-demand feeders and protects equipment from overloads in demanding applications.
• 3-pole configuration supports three-phase distribution, helping maintain balanced loads in commercial and industrial panels.
• 600V maximum voltage suitable for medium-voltage panel environments and safe shutoff during faults.
• Exact part-number compatibility with Square D installations thanks to the LGA36400U33X designation, reducing the risk of mismatches during maintenance or installation.
• Versatile installation contexts designed for panelboards, load centers, and electrical distribution networks, making it a reliable staple in service trucks and workshop inventory.

Why this matters for you

• Faster downtime recovery with a direct-fit part—no guesswork on compatibility for quick replacements in critical panels.
• Long-term readiness maintain a well-curated spare inventory with the exact parts your team relies on, ensuring you’re never stuck waiting for the right breaker.
• Clear ownership by stocking a reputable Square D model, backed by AmpState's availability for immediate sourcing.

If you’re unsure whether this is the right match for your setup, AmpState offers help confirming fit and compatibility. Message us and we’ll assist in verifying that the Square D LGA36400U33X aligns with your panelboards or load centers.