Square D | PXF36800LIZ | Circuit Breaker | 800A | 600V

Introducing the Square D PXF36800LIZ circuit breaker—a high-capacity protection device designed for demanding electrical systems. With an 800A current rating and a 600V basic insulation level, this breaker delivers dependable overload and short-circuit protection for critical equipment and large feeders.

Key details at a glance

• Amperage: 800A
• Voltage: 600V
• Part number: PXF36800LIZ
• Applications: maintenance, retrofit, and replacement where exact specifications must be matched

Why this Square D breaker stands out

• The PXF36800LIZ is designed for systems that require an 800A/600V protection device, making it a reliable fit for high-demand panels and feeders.
• Square D breakers are trusted in industrial and commercial environments for consistent performance and predictable trip characteristics.
• Ideal for upgrading aging protection schemes or replacing worn-out units in existing installations without extensive panel changes.
• The PXF36800LIZ part number is the best guide for ensuring you’re ordering the exact device you need for compatibility.

Best-use scenarios

• Retrofit projects in large electrical panels where draft ratings require 800A protection and 600V operation
• New or rebuilt systems that demand high-current feeder protection for motors, transformers, or heavy machinery
• Maintenance of critical infrastructure where downtime must be minimized and replacement parts are pre-approved by system diagrams
• Commercial facilities undergoing capacity upgrades or load-alignment to meet evolving energy demands

How to ensure a smooth fit and reliable performance

• Verify compatibility: Before ordering, confirm that your panel or switchgear accepts components with the PXF36800LIZ form factor and ratings (800A, 600V).
• Cross-check references: Use the part number as the primary compatibility reference to match manufacturer drawings and panel schedules.
• Plan for installation: Replace only with the power off, following all safety procedures and local electrical codes. If in doubt, consult a licensed electrician or panel manufacturer’s guidelines.

Practical tips for optimal use

• Maintain clear labeling on the panel to reflect the new protection scheme and ensure quick identification during future maintenance.
• Keep a spare PXF36800LIZ on hand for critical installations to minimize downtime during scheduled maintenance or unexpected outages.
• Coordinate with your maintenance plan to audit the protection device’s trip characteristics periodically and confirm no nuisance trips occur under normal loading.

Note: Confirm fit and ratings before ordering. The part number PXF36800LIZ is the best reference for compatibility.