Square D LDL36600U31X - 600 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D LDL36600U31X, a purpose-built 600A, 600V, 3-pole molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. When reliability and space efficiency matter, this breaker delivers.

• Space‑saving molded-case design: The compact form factor fits neatly into crowded panels, helping you maximize enclosure space without sacrificing protection.
• Thermal‑magnetic trip unit: Provides stable, repeatable protection across ambient conditions and loads, with fast response to short-circuit events for safer electrical systems.
• 3-pole configuration for 3-phase systems: Ideal for commercial and light industrial applications that require robust, coordinated protection across all three phases.
• 600A, 600V rating: Suitable for high‑current branch circuits and large feeders, offering reliable protection for demanding electrical installations.
• OEM panel compatibility: Engineered to integrate with matching Square D load centers and panelboards, ensuring proper fit, coordination, and performance.
• Versatile applications: Well suited for residential, commercial, and light industrial environments where durable, predictable protection is essential.

This breaker is built to work as part of a cohesive protection system with compatible Square D panelboards, delivering consistent trip characteristics and dependable operation when it’s needed most. Its space-conscious design is especially valuable in tight electrical rooms, service entrances, or densely populated panel racks where every amp and every inch matters.

What makes it a smart choice is not just the raw specs, but how the LDL36600U31X translates into real-world reliability. The combination of a rugged molded-case body and a precise thermal-magnetic trip mechanism means fewer nuisance trips and clearer fault scenarios, so technicians can diagnose problems faster and keep critical loads online.

Technical specifications

• Manufacturer: Square D
• Part Number: LDL36600U31X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 600A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for installers and facility managers seeking a reliable, high‑capacity protection solution that plays nicely with established Square D panelboard ecosystems. Whether upgrading an aging panel or provisioning a new three‑phase distribution, LDL36600U31X offers the performance you need with the ease of OEM compatibility.