Square D LA36350 - 350 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Introducing the Square D LA36350 — a 350A, 600V, 3-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to keep critical electrical systems up and running, it combines powerful protection with straightforward serviceability.

Why this breaker stands out

• Fast plug-in installation — streamline upgrades and replacements with a design optimized for quick seating in compatible OEM load centers.
• Thermal-magnetic trip unit — provides stable, repeatable protection by responding to overload conditions (thermal) and short circuits (magnetic), reducing nuisance trips while safeguarding equipment.
• OEM-compatible — engineered to pair with matching Square D load centers and panelboards for precise fit, coordination, and reliable performance.
• High-current capability — 350A rating supports large branch circuits without compromising protection in residential, commercial, and light industrial environments.
• 600V class protection — suitable for demanding distribution and control circuits, delivering dependable interruption across multiple applications.
• Three-pole synchronization — the 3-pole design ensures simultaneous tripping across all conductors for comprehensive, coordinated protection.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: LA36350
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 350 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

Perfect for commercial panelboards and load centers where large feeders require robust protection. Use cases include heavy-duty lighting distributions, HVAC feeders, and machinery circuits in commercial or light industrial settings. The plug-in design minimizes downtime during panel upgrades or maintenance, keeping essential equipment protected with minimal service interruption.

Installation and compatibility tips

Pair this breaker with matching Square D OEM load centers and panelboards to ensure optimal fit and electrical coordination. Confirm that your panel is rated for 600V and supports 3-pole plug-in devices at 350A. Always follow applicable electrical codes and safety practices during installation or replacement, and rely on the thermal-magnetic trip to provide reliable protection against both overload and short-circuit events.

With the LA36350, you gain a dependable, high-current protection solution that simplifies serviceability while delivering precise, coordinated performance for demanding electrical systems.