Square D JGA36250U44X - 250 A, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D JGA36250U44X is a robust 250A, 3-pole plug-in molded-case circuit breaker designed to safeguard large branch circuits in panelboards and load centers. Built for dependable overcurrent and short-circuit protection, it’s engineered to simplify installation and maintenance while delivering reliable performance in demanding environments.

Why this breaker stands out

• Fast plug-in connection for quick, hassle-free installation and simple field replacement—minimizing downtime during upgrades or service.
• Thermal-magnetic trip unit delivers stable, repeatable protection by sensing gradual overloads with the thermal element and surging faults with the magnetic element, helping prevent nuisance trips while ensuring fast response to faults.
• 3-pole design provides comprehensive protection for 3-phase circuits, making it ideal for modern commercial and light industrial electrical systems.
• OEM-compatible performance designed to work seamlessly with matching Square D panelboards and load centers, preserving fit, alignment, and electrical integrity.
• Versatile application suitable for residential, commercial, and light industrial environments where high-capacity protection and reliability are required.

How it protects your system

With a thermal-magnetic trip unit, this molded-case breaker continuously monitors current flow and fault conditions. The thermal element reacts to sustained overloads, while the magnetic element responds to high-energy short circuits, triggering a rapid and precise trip. The result is predictable protection that helps keep wiring, panels, and connected equipment safe from damage and fire risk.

Ideal use cases

• Main or feeder protection in large residential or commercial panelboards
• Protection for 3-phase branch circuits in light industrial facilities
• Upgrades or replacements in existing Square D systems where plug-in, snap-in installation is preferred
• Systems requiring robust overcurrent and short-circuit protection with quick field serviceability

Technical specifications at a glance

• Manufacturer: Square D
• Part number: JGA36250U44X
• 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

Choose the Square D JGA36250U44X when you need durable, high-capacity protection that installs quickly, integrates seamlessly with your existing Square D panelboards and load centers, and maintains reliable performance across residential, commercial, and light industrial applications.