Square D JJA36225SA - 225 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D JJA36225SA is a purpose-built protection device designed to safeguard electrical systems in panelboards and load centers. With a 225 A rating and 600 V capacity, this 3-pole plug-in molded case circuit breaker delivers rugged, reliable overcurrent and short-circuit protection for demanding residential, commercial, and light industrial environments.

• Fast plug-in connection enables rapid installation and effortless replacement, minimizing downtime during upgrades or maintenance.
• Thermal-magnetic trip unit provides stable, repeatable protection—responding swiftly to short circuits while preventing nuisance trips on gradual overloads.
• 3-pole design supports balanced protection in 3-phase systems, ideal for commercial and light industrial applications.
• 225 A, 600 V rating accommodates high-demand branch circuits while maintaining safe, reliable operation within its electrical envelope.
• OEM compatibility is optimized for use with matching Square D load centers and panelboards, ensuring a precise fit and dependable performance.
• Versatile applications suited for residential, commercial, and light industrial installations where dependable circuit protection is a must.

Technical snapshot

• Manufacturer: Square D
• Part Number: JJA36225SA
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 225 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for panelboard upgrades or new installations, the JJA36225SA provides a confident protection solution where space is at a premium and downtime is costly. Its plug-in format simplifies service, while the thermal-magnetic trip unit delivers consistent performance across varying temperatures and loads. This unit is especially well-suited for environments that rely on robust, catch-all protection for high-amp circuits and multi-phase systems.

Compatibility and use tips: ensure your enclosure supports a 3-pole plug-in breaker in the Square D JJA series and that the surrounding wiring and terminations are rated for 600 V. For installers and facilities managers, this breaker represents a reliable, long-term upgrade that pairs well with matching OEM load centers, helping you maintain safety, compliance, and uninterrupted operation. Available from AmpState.