Square D HLA36150U31X - 150 A, 3-Pole Plug-In Circuit Breaker | AmpState

Discover reliable protection with the Square D HLA36150U31X—a 150 A, 3-pole plug-in molded case circuit breaker designed to defend your panelboards and load centers from overcurrent and short circuits. Built for fast field service, its plug-in design streamlines installation and replacement, minimizing downtime during panel upgrades or maintenance.

• Fast plug-in connection supports quick installation and effortless replacements, keeping downtime to a minimum during panel servicing.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, automatically responding to overloads and short circuits to protect wiring and equipment.
• 3-pole design provides coordinated protection for three-phase circuits, ideal for commercial and light industrial applications as well as residential setups that require three-phase protection.
• OEM-compatible mounting is designed to work with matching Square D OEM load centers and panelboards, ensuring a precise fit and reliable integration.
• Amperage and form factor—150 A, plug-in molded case circuit breaker—providing robust branch circuit protection for main feeders and critical circuits.

The HLA36150U31X is a versatile choice for a range of environments—from home service panels to commercial load centers and light industrial panels. It excels in situations where quick replacement is essential after a fault or during panel modernization, and where consistent trip performance is critical for safety and reliability.

Ideal use scenarios: upgrading an aging panel, replacing a failed breaker, or expanding capacity in a service panel that requires reliable, drop-in protection without extensive wiring changes. It’s particularly well-suited for residential retrofits, light commercial installations, and controlled industrial environments where three-phase protection is needed in a plug-in format.

Why choose this model over alternative plug-in breakers? It combines fast installation with a robust thermal-magnetic trip mechanism that provides both overload and short-circuit protection, all in a three-pole package designed to fit Square D panel systems. For professionals stocking panel maintenance parts, this breaker offers a dependable, OEM-compatible solution that reduces downtime and simplifies service calls.

Purchased from AmpState, this Square D breaker guarantees compatibility with your existing Square D panelboard lineup, making it a straightforward, reliable choice for protecting critical circuits and keeping systems running smoothly.