{"product_id":"square-d-fhl36020-20a-600v-3-pole-circuit-breaker","title":"Square D FHL36020 - 20 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D FHL36020 — a 20A, 600V, 3-pole molded case circuit breaker designed to shield your electrical system from overcurrent and short-circuit events. Built for reliability in panelboards and loadcenters, this unit blends precise protection with practical, real-world versatility for a range of settings.\u003c\/p\u003e \u003ch3\u003eWhat makes this breaker stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel real estate, letting you fit more circuits without crowding the enclosure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by reacting to both sustained overloads and short circuits, reducing nuisance trips while guarding your equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e OEM-compatible\u003c\/strong\u003e— engineered to work seamlessly with matching Square D OEM loadcenters and panelboards, ensuring smooth installation and reliable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application profile\u003c\/strong\u003e suited for residential, commercial, and light industrial environments where dependable branch circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eUse the FHL36020 as a protective backbone for branch circuits in panelboards and loadcenters that service lighting, outlets, and small mechanical loads. Its 3-pole configuration makes it appropriate for three-phase distribution circuits, while its 20A rating is well-suited for mid-range circuits in commercial spaces, apartment buildings, or light industrial equipment rooms. When you need a replacement or a new install that won’t disrupt existing layouts, this breaker keeps your system compliant and responsive.\u003c\/p\u003e \u003ch3\u003eTechnical specifications at a glance\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 FHL36020\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 20A\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\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters for your panel\u003c\/h3\u003e\n\u003cp\u003eChoosing a breaker that mirrors your panel’s design and electrical characteristics reduces installation headaches and supports long-term reliability. The thermal-magnetic trip mechanism provides predictable protection across a range of operating temperatures, which is especially valuable in spaces with temperature fluctuations or where circuits experience varying loads. Pairing this unit with compatible OEM loadcenters helps ensure consistent breaker performance, easier diagnostics, and straightforward maintenance over the years.\u003c\/p\u003e \u003ch3\u003eInstallation and maintenance tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eHave a qualified electrician verify panel compatibility before installation, then follow standard safety procedures to power down the service disconnect prior to panel work.\u003c\/li\u003e \u003cli\u003eConfirm that the panelboard is designed for 600V, 3-pole devices and that the FHL36020 matches the panel’s slot configuration.\u003c\/li\u003e \u003cli\u003ePeriodically inspect for signs of wear, corrosion, or loose connections around the breaker terminals to maintain optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e: This Square D FHL36020 3-pole breaker is a dependable choice for projects requiring a compact, reliable protector with a precise thermal-magnetic trip profile. Trusted by engineers, electricians, and facility managers, it’s a practical upgrade or replacement option for panelboards and loadcenters in residential, commercial, and light industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355235602594,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-fhl36020-20-a-600-v-3-pole-circuit-breaker-ampstate-531.webp?v=1788744868","url":"https:\/\/www.ampstate.com\/products\/square-d-fhl36020-20a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}