Square D | LIL36300 | Circuit Breaker | 300A | 3-Pole | 600V | 200kA | Feed-Through

Meet the Square D LIL36300 — a purpose-built, high-performance circuit breaker designed for maintenance, retrofit, and replacement projects where exact specifications matter. This 300A, 3-pole unit brings reliable protection to 600V systems with a robust 200kA interrupting rating, ready to handle demanding industrial and commercial applications.

Key benefits at a glance

• High-capacity protection: 300A current rating paired with a 200kA short-circuit interrupting capability provides strong, dependable protection for feeders and distribution circuits.
• Three-pole configuration: 3-Pole design enables synchronized interruption across all phases, reducing the risk of nuisance tripping and ensuring balanced protection in 3-phase systems.
• 600V coverage: Suitable for medium-voltage installations common in industrial environments, offering compatibility with a wide range of equipment and panels.
• Feed-through design: Facilitates clean, direct feeding of downstream circuits within compatible enclosures, helping simplify wiring and service for easier maintenance.
• Part-number accuracy: The LIL36300 is the most reliable reference for compatibility—always verify fit and ratings before ordering to avoid mismatches.

Why this model stands out

Designed for installations where space, performance, and reliability matter, the Square D LIL36300 provides a precise match for panels and gear that require a feed-through breaker with three poles and a 300A service. Its feed-through configuration minimizes the complexity of downstream wiring, streamlining both installation and future maintenance. This means faster replacements, less downtime, and clearer, easier fault isolation in busy electrical rooms.

Usage scenarios

• Retrofit projects where an existing 3-pole, 300A feeder needs upgraded protection and a feed-through path for downstream circuits.
• Maintenance replacements in Square D-enabled panelboards requiring exact LIL-series compatibility to maintain system integrity.
• New or upgraded service entrances where a single, reliable 300A feed-through breaker is needed to guard multiple downstream feeders.

Specifications at a glance

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V
• Interrupting rating: 200kA
• Configuration: Feed-Through
• Reference: Part number LIL36300 (best compatibility reference)

Note: Confirm fit and ratings before ordering. The part number is the most reliable reference for ensuring compatibility with your specific enclosure and panel lineup.