{"product_id":"square-d-hja36045-45a-600v-3-pole-plug-in-circuit-breaker","title":"Square D HJA36045 - 45 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJA36045 — a 45A, 600V, 3-pole plug-in molded case circuit breaker built to protect your electrical system with speed and precision. Engineered for dependable branch circuit overcurrent and short-circuit protection, it’s ready to stand up to demanding panelboards and load centers in a wide range of applications.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this 3-pole plug-in breaker matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and hassle-free replacement, minimizing downtime during panel maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining overload (thermal) and short-circuit (magnetic) mechanisms, helping prevent nuisance trips and protecting connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e supports three-phase systems, ensuring coordinated protection across all active conductors in commercial or light industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBroad compatibility\u003c\/strong\u003e with matching OEM load centers and panelboards means fewer fitment concerns and consistent performance with your existing infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments, making it a dependable choice for panel upgrades, subpanels, or new installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJA36045\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis plug-in molded-case breaker is an ideal fit for electricians and facilities managers who value fast serviceability, reliable protection, and OEM-aligned performance. Whether you’re stocking a commercial panel, outfitting a small industrial control room, or upgrading a residential subpanel, the HJA36045 delivers predictable trip characteristics and durable operation in a compact, easy-to-install package.\u003c\/p\u003e \u003cp\u003eChoose the Square D HJA36045 for concise, dependable protection that integrates seamlessly with your existing panelboard ecosystem. AmpState backs this unit with genuine engineering compatibility and streamlined ordering to keep your projects on schedule.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355288752290,"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_80aea9a4-9b5d-4670-836b-b24ebbc477b5.png?v=1764690966","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36045-45a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}