Square D LDA36250U31X - 250 A, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D LDA36250U31X is a 250A, 3-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for quick serviceability and dependable performance, it’s a practical choice for electricians and facilities managers tackling demanding electrical installations.

• Fast plug-in connection enables rapid installation and effortless replacement, minimizing downtime during panelwork or maintenance.
• Thermal-magnetic trip unit provides stable, repeatable protection across a wide range of load conditions, helping prevent nuisance trips while safeguarding circuits.
• 3-pole design supports three-phase systems, delivering coordinated protection for balanced electrical loads.
• 250A amperage rating suits main or feeder protection in larger residential, commercial, or light industrial applications.
• OEM compatibility engineered to work with matching Square D OEM load centers and panelboards for seamless integration and reliable performance.
• Versatile use appropriate for a variety of environments—from homes with three-phase needs to small-to-midsize commercial and light industrial setups.

Who it's for: electricians, facilities engineers, and maintenance teams seeking a robust, easily replaceable protection device that reduces downtime and supports scalable electrical systems. If you’re upgrading a panelboard or configuring a new load center, this plug-in molded case breaker offers dependable protection and straightforward serviceability.

Technical specifications

• Manufacturer: Square D
• Part Number: LDA36250U31X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250A
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

For installations that require reliable protection with straightforward compatibility, the Square D LDA36250U31X delivers clear benefits: quick field replacement, coordinated three-phase protection, and dependable performance across residential, commercial, and light industrial environments. It’s the practical, long-lasting choice for safeguarding electrical systems in panelboards and loadcenters.