{"product_id":"square-d-fh36045-45a-3-pole-plug-in-circuit-breaker","title":"Square D FH36045 - 45 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D FH36045 — a 45A, 3-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for professionals who value fast setup and precise protection, this unit pairs a quick-connect plug-in design with a thermal-magnetic trip mechanism for reliable performance under real-world conditions.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables rapid installation and effortless replacement, reducing downtime during upgrades or service visits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying loads, ensuring safe interruption when faults occur while minimizing nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e suited for 3-phase panelboards and multiwire circuits, offering coordinated protection for commercial and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e engineered to integrate with matching Square D load centers and panelboards for reliable fit, proper bus alignment, and consistent trip performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for residential, commercial, and light industrial electrical systems requiring robust branch-circuit protection at 45A.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e: Square D FH36045, 45A, 3-pole, plug-in molded case circuit breaker, thermal-magnetic trip, part number FH36045. It protects electrical wiring and connected devices from overcurrent and short circuits, interrupting fault currents quickly to prevent damage and fire hazards.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eThis device is designed to integrate seamlessly with Square D panel ecosystems, delivering consistent trip curves and long-term reliability. The plug-in format simplifies upgrades and replacements in existing installations without reworking bus bars or panel wiring, making maintenance smoother and faster.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading an aging residential panel that requires a reliable 3-pole 45A protection solution.\u003c\/li\u003e \u003cli\u003eRetrofits in small commercial panels to support 3-phase loads while maintaining precise overcurrent protection.\u003c\/li\u003e \u003cli\u003eLight industrial setups where fast replacement and dependable fault interruption minimize downtime and safeguard equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355234685090,"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_5e862912-60d5-42d7-ae31-8782dac8bc81.png?v=1764690646","url":"https:\/\/www.ampstate.com\/products\/square-d-fh36045-45a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}