Square D JJA36200 - 200 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D JJA36200 — a 200 A, 600 V, 3-pole plug-in molded case circuit breaker designed for reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers.

Key benefits that matter in real-world electrical installations:

• Fast plug-in connection: simplifies installation and rapid replacement, minimizing downtime when upgrading panels or swapping out failed breakers.
• Thermal-magnetic trip unit: provides stable, repeatable protection by reacting to both sustained overloads (thermal) and high-energy short circuits (magnetic) to prevent damage to wiring and devices.
• Three-pole design (three-phase): ideal for commercial and light industrial systems that run on three-phase power, delivering coordinated protection across all conductors.
• Compatibility with Square D OEM panelboards and loadcenters: engineered to fit and work seamlessly with matching enclosures, ensuring consistent performance and easier maintenance.
• Versatile application: suitable for residential, commercial, and light industrial environments where dependable branch-circuit protection is required.

The JJA36200 is specified for a 200 A continuous current rating and a 600 V maximum voltage, making it a robust choice for main or feeder protection in appropriately rated installations. Its plug-in mounting style enables straightforward, tool-efficient installation into compatible panelboards, reducing field wiring complexity and site labor costs.

Practical use scenarios include upgrading aging panels in mid-sized commercial spaces, protecting three-phase branch circuits in light industrial facilities, or serving as a reliable main breaker in residential-to-small-commercial electrical distributions where quick replacement and consistent trip performance are critical.

Why choose this model over alternatives? The combination of a plug-in molded-case design with a thermal-magnetic trip unit and OEM compatibility delivers predictable tripping behavior, easier maintenance, and a streamlined upgrade path within Square D ecosystems. The result is safer electrical distribution with less downtime and tighter protection coordination across your panelboard and load center assemblies.

Key specifications

• Manufacturer: Square D
• Part Number: JJA36200
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 200 A
• Voltage: 600 V
• Poles: 3
• Mounting: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection