{"product_id":"square-d-hja36040-40a-600v-3-pole-plug-in-circuit-breaker","title":"Square D HJA36040 - 40 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDiscover dependable branch circuit protection with the Square D HJA36040 — a 40 A, 600 V, 3-pole plug-in molded case circuit breaker designed for fast, reliable protection in panelboards and load centers. Built for electricians who value speed, safety, and consistency, this breaker keeps your electrical systems guarded against overloads and short circuits without slowing you down on installation or maintenance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for rapid installation and straightforward replacement, minimizing downtime during panel servicing or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining thermal overload sensing with magnetic short-circuit triggering — reducing nuisance trips and ensuring prompt response when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e engineered to work seamlessly with matching Square D OEM load centers and panelboards, helping maintain system integrity and simplifying stocking decisions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple settings\u003c\/strong\u003e ideal for residential panels, commercial installations, and light industrial applications where reliable, code-compliant protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical details\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: HJA36040\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 40 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Plug-in\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or repairing panelboards in residential or light commercial buildings where reliable 3-pole protection is required\u003c\/li\u003e \u003cli\u003eNew installations in commercial spaces that demand fast, tool-free plug-in replacement during maintenance\u003c\/li\u003e \u003cli\u003eSystems requiring compatible protection with OEM load centers to ensure coordinated performance and safety compliance\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical guidance for deployment\u003c\/h2\u003e\n\u003cp\u003eWhen selecting this breaker, ensure your panelboard is designed for plug-in, 3-pole devices of the HJA series and that the 40 A, 600 V rating aligns with the circuit requirements. For service life and safety, pair this unit with properly rated conductors and protective devices within the same electrical system to maintain coordinated protection across the panel.\u003c\/p\u003e \u003cp\u003eEquip your electrical installation with a dependable, easy-to-service solution that keeps downtime to a minimum and protection to the maximum. The Square D HJA36040 is a precise, purpose-built choice for professionals who demand consistent performance from their circuit protection components.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355288686754,"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_cc5ce5c8-eda2-47b4-8113-9c4711def408.png?v=1764690965","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36040-40a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}