{"product_id":"square-d-hjl36150u44x-150a-3-pole-circuit-breaker","title":"Square D HJL36150U44X - 150 A, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet dependable, space-efficient protection for your electrical distribution with the Square D HJL36150U44X. This 150 A, 3-pole molded-case circuit breaker is designed to shield panelboards and load centers from overcurrent and short circuits, keeping critical circuits reliable in everyday operations.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eCompact molded-case design\u003c\/b\u003e frees panel space while delivering robust protection, making it easier to fit into tight enclosures and minimize heat build-up.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThermal-magnetic trip unit\u003c\/b\u003e combines a stable thermal element with an instantaneous magnetic trip, providing repeatable protection under overloads and rapid disconnection during short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e3-pole configuration\u003c\/b\u003e ideal for three-phase systems, enabling coordinated protection for motors, controllers, and multi-wire circuits without nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM-compatible\u003c\/b\u003e designed to be compatible with matching Square D OEM loadcenters and panelboards, ensuring reliable integration and electrical performance.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVersatile across applications\u003c\/b\u003e suitable for residential, commercial, and light industrial environments where dependable branch-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cb\u003eTechnical essentials at a glance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: Square D | Part Number: HJL36150U44X\u003c\/p\u003e\n\u003cp\u003eType: Thermal-magnetic molded case circuit breaker (MCCB) | Amperage: 150 A | Poles: 3 | Application: Branch circuit overcurrent and short-circuit protection\u003c\/p\u003e \u003ch3\u003eWhy this MCCB stands out\u003c\/h3\u003e\n\u003cp\u003eUnlike generic breakers, the HJL36150U44X is purpose-built for panel efficiency and long-term reliability. The molded-case construction provides excellent heat dissipation, which helps maintain consistent trip performance even in demanding load conditions. The thermal-magnetic protection curve is engineered to minimize nuisance trips during normal voltage fluctuations while delivering fast isolation when a fault occurs. This is especially beneficial for three-phase equipment like conveyors, compressors, pumps, and three-phase lighting systems where coordinated protection matters.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003e- Three-phase commercial lighting and small HVAC installations in storefronts or offices\u003c\/p\u003e\n\u003cp\u003e- Light industrial equipment feeders and motor control circuits\u003c\/p\u003e\n\u003cp\u003e- Residential and small commercial panels that require reliable 3-pole protection in tight spaces\u003c\/p\u003e \u003ch3\u003ePractical guidance for optimal results\u003c\/h3\u003e\n\u003cp\u003ePair this breaker with compatible Square D loadcenters or panelboards to ensure seamless mechanical and electrical fit. When planning gangable layouts, the compact MCCB design helps maximize usable panel depth and reduces thermal buildup in crowded enclosures. For maintenance, rely on the precise thermal-magnetic trip behavior to diagnose intermittent overcurrent events by comparing trip timing under controlled test conditions.\u003c\/p\u003e \u003cp\u003eWith the Square D HJL36150U44X, you gain a purpose-built, space-conscious, three-pole protection solution that aligns with standard electrical practices for residential, commercial, and light industrial setups. It’s a reliable choice when you need consistent performance, straightforward integration, and peace of mind that your critical circuits stay safeguarded.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355296583842,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_e22c7ff2-a725-481c-95bb-a325d52b897b.png?v=1764691022","url":"https:\/\/www.ampstate.com\/products\/square-d-hjl36150u44x-150a-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}