Square D JJL36225 - 225 A, 600 V, 3-Pole Circuit Breaker | AmpState

Square D JJL36225 is a 225 A, 600 V, 3-pole molded case circuit breaker designed to protect branch circuits in panelboards and loadcenters. This compact unit delivers dependable overcurrent and short‑circuit protection in commercial and light industrial settings, while saving valuable panel space.

Its thermal-magnetic trip unit combines a thermal element for overload sensing with a magnetic mechanism for fast, instantaneous interruption during high fault currents. The result is stable, repeatable protection performance and reduced nuisance trips, helping protect wiring, devices, and downstream equipment.

Built to integrate with Square D's own line of OEM panels, the JJL36225 ensures proper mechanical fit and matched trip characteristics. With a 3-pole design, it supports three‑phase distribution, making it ideal for facilities that rely on 3‑phase power.

Key specifications and practical use cases

• Amperage rating: 225 A
• Voltage rating: 600 V
• Poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters

Who benefits most from the Square D JJL36225? electrical contractors and maintenance teams upgrading or stocking panels in small to mid-size commercial spaces, data centers, or light industrial facilities that operate 3‑phase distribution up to 600 V. It’s also a strong fit for retrofit projects where OEM compatibility and a clean, space-saving package are priorities.

Why choose this model over alternatives? The JJL36225’s combination of a compact molded case, reliable thermal-magnetic protection, and seamless compatibility with Square D panelboards minimizes installation risk and simplifies replacements. It’s designed to maintain consistent trip performance across temperatures and loads, a critical factor in maintaining uptime and protecting sensitive equipment.

Available from AmpState, this breaker delivers proven Square D reliability with a footprint that maximizes panel efficiency while providing robust protection for essential electrical infrastructure.