Square D LGA36250U33X - 250 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D LGA36250U33X is a 250A, 600V, 3-pole plug-in molded case circuit breaker engineered to deliver reliable branch circuit protection in panelboards and load centers. Its robust design and quick-connect capability help you reduce installation time and maintenance hassle while keeping critical electrical systems safeguarded.

Key Features

• Fast plug-in connection: simplifies installation and replacement, reducing downtime in service panels.
• Thermal-magnetic trip unit: delivers stable, repeatable protection against overloads and short circuits for predictable performance.
• Three-pole configuration: ensures simultaneous disconnection of all conductors, improving safety and aiding in proper phase protection for three-phase panelboards.
• 250A, 600V rating: suitable for heavy-load residential, commercial, and light industrial applications where robust overcurrent protection is required.
• OEM-compatible: designed to integrate with matching Square D OEM load centers and panelboards for a reliable, unified solution.

Technical Specifications

• Manufacturer: Square D
• Part Number: LGA36250U33X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal Applications

Designed for a range of settings, this 3-pole plug-in breaker is a strong fit for residential service panels that require heavy-duty protection, commercial load centers handling substantial circuit loads, and light industrial distrib­ution where rapid, secure replacement is critical. Its compatibility with matching OEM panelboards ensures a cohesive, reliable protection strategy across your electrical infrastructure.

Why This Breaker Stands Out

When downtime matters, the LGA36250U33X delivers. The plug-in design reduces service interruption during upgrades or maintenance, while the thermal-magnetic protection curve provides dependable response to both sustained overloads and sudden faults. The three-pole format guarantees coordinated shut-off across all lines, which is essential for safe, code-compliant operation in three-phase systems. With OEM compatibility, you can upgrade or replace components without compromising panel design or protection continuity.

Practical Tips & Use Scenarios

• Plan replacements in aging panelboards with high-load feeders to prevent nuisance trips and improve reliability.
• Use in three-phase panelboards where simultaneous disconnection of all poles is required for safety and code compliance.
• Pair with corresponding Square D load centers to maintain system integrity and simplify future maintenance.
• Keep spare plug-in breakers on hand for fast field service and minimal panel downtime during load changes or expansions.