{"product_id":"square-d-hja36100u31x-100a-600v-3-pole-plug-in-circuit-breaker","title":"Square D HJA36100U31X - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJA36100U31X — a 100 A, 600 V, 3-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built by Square D, this plug-in breaker is engineered for quick installations and straightforward replacements in residential, commercial, and light industrial electrical environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e — enables rapid installation or replacement, minimizing downtime when upgrading panelboards or performing maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — provides stable, repeatable protection by combining overload sensing with instantaneous short-circuit interruption, helping to prevent nuisance trips and gear damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design, 100 A, 600 V\u003c\/strong\u003e — suitable for three-phase configurations and higher-voltage applications, delivering comprehensive protection across multiple conductors.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e — designed to work with matching Square D load centers and panelboards, ensuring proper fit, coordination, and performance without adapters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e — ideal for residential service equipment, commercial electrical panels, and light industrial distribution where dependable branch-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e\u003c\/p\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 HJA36100U31X\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 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\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\u003eWhy choose this breaker for your panel setup? It combines a fast, tool-efficient plug-in installation with a protective mechanism you can rely on in demanding environments. The thermal-magnetic trip unit delivers predictable response to overloads and short circuits, helping to safeguard wiring, equipment, and occupants. With its 600 V rating and 3-pole design, it’s well-suited for modern panelboards and load centers that require robust, multi-conductor protection.\u003c\/p\u003e \u003cp\u003eIf you’re upgrading existing equipment or equipping a new installation, the Square D HJA36100U31X 100 A, 600 V, 3-pole plug-in molded case circuit breaker from AmpState offers precise protection, easy replacement, and OEM compatibility—so you can count on consistent performance day after day.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355290456226,"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_d95695e4-4695-4558-a8b3-3e1257abda1e.png?v=1764690978","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36100u31x-100a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}