Square D JDL36250U43X - 250 A, 3-Pole Circuit Breaker | AmpState

Meet the Square D JDL36250U43X — a 250 A, 3-pole molded-case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Designed for consistent performance, this unit combines a compact form with a thermal-magnetic trip mechanism to safeguard your electrical system under a range of conditions.

• Compact molded-case design streamlines panel layout and makes efficient use of space in crowded panels.
• Thermal-magnetic trip unit provides stable, repeatable protection for both overloads and short circuits, reducing nuisance tripping and enhancing reliability.
• 3-pole configuration ideal for 3-phase systems common in commercial and light industrial environments.
• OEM-compatible ensures seamless integration with matching Square D loadcenters and panelboards for straightforward retrofits and upgrades.

• Manufacturer: Square D
• Part Number: JDL36250U43X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 250 A
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters

Who should consider this breaker? It’s well suited for electricians and facilities managers tackling panel upgrades, new installations, or service room reorganizations in residential complexes, commercial spaces, and light industrial settings. Whether you’re replacing a failing breaker or expanding capacity to support additional equipment, the JDL36250U43X delivers robust protection without sacrificing panel space.

Practical use scenarios include replacing a 3-pole 250A breaker in a main distribution panel, feeding a subpanel for a 3-phase load, or upgrading an aging panel to accommodate higher-demand equipment in a compact footprint. The combination of a high amperage rating, reliable trip protection, and OEM compatibility helps you maintain safety and continuity in your electrical distribution system.

Tips for best results: verify that your panelboard supports the JDL series and 3-pole 250A breakers, ensure correct alignment with the bus and mounting clip, and plan space considerations inside the enclosure to accommodate the unit’s profile. With the Square D JDL36250U43X, you gain a dependable, space-efficient solution that protects your electrical infrastructure while aligning with existing Square D installations.