{"product_id":"square-d-hja36020-20a-600v-3-pole-plug-in-circuit-breaker","title":"Square D HJA36020 - 20 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D \u003cstrong\u003eHJA36020\u003c\/strong\u003e is a robust \u003cstrong\u003e3-pole, 20A, 600V\u003c\/strong\u003e plug-in molded case circuit breaker designed to protect branch circuits in panelboards and load centers. Its \u003cstrong\u003efast plug-in connection\u003c\/strong\u003e means quick installation and simple future replacements, keeping downtime to a minimum in active electrical environments.\u003c\/p\u003e \u003cp\u003eAt the heart of the unit is a \u003cstrong\u003ethermal-magnetic trip\u003c\/strong\u003e system that delivers stable, repeatable protection. The \u003cem\u003ethermal\u003c\/em\u003e element handles gradual overloads with predictable timing, while the \u003cem\u003emagnetic\u003c\/em\u003e element provides instantaneous interruption during short-circuit events, shielding wiring, devices, and surrounding equipment from damage.\u003c\/p\u003e \u003cp\u003eThis breaker is built to \u003cstrong\u003ematch OEM Square D load centers and panelboards\u003c\/strong\u003e, ensuring a seamless, code-compliant fit within your existing enclosure. Its plug-in design simplifies maintenance and upgrades, reducing field wiring complexity and improving serviceability during panel work.\u003c\/p\u003e \u003cp\u003eIdeal for \u003cstrong\u003eresidential, commercial, and light industrial\u003c\/strong\u003e applications, the HJA36020 is well-suited for service upgrades, retrofit projects, and new installations where reliable overcurrent and short-circuit protection is essential.\u003c\/p\u003e \u003ch3\u003eTechnical specifications\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 HJA36020\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 20 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 \u003ch3\u003eUse scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading protection in small to mid-size panelboards where fast plug-in replacement minimizes equipment downtime\u003c\/li\u003e \u003cli\u003eRetrofits and service upgrades in existing Square D installations to maintain consistent protection profiles\u003c\/li\u003e \u003cli\u003eProtecting individual branch circuits in residential systems and light commercial setups\u003c\/li\u003e \u003cli\u003eConfigurations requiring a 600 V maximum rating with reliable 3-pole protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor reliable, code-compliant protection with straightforward installation, the Square D HJA36020 delivers precise, predictable performance when it matters most—in both new builds and upgrades across a range of commercial and industrial environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355287539874,"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_d60d733e-e957-45d6-9585-09080415c2fe.png?v=1764690961","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36020-20a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}