{"product_id":"square-d-hda36020-20a-600v-3-pole-plug-in-circuit-breaker","title":"Square D HDA36020 - 20 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HDA36020—a 20A, 600V, 3-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection right where you need it. Built for quick, clean installations in panelboards and load centers, this unit keeps critical circuits safe from overload and short circuits while simplifying upgrades and replacements.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for rapid installation and effortless replacements, reducing downtime during panel upgrades or maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection—thermal protection handles gradual overloads and magnetic protection responds instantly to short circuits for critical circuit safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible fit\u003c\/strong\u003e designed to pair with matching Square D load centers and panelboards, ensuring reliable coordination and fit without aftermarket guesswork.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential panels, commercial distribution, and light industrial setups requiring 3-pole, 600V protection across three phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole, 20A, 600V capability\u003c\/strong\u003e enables dependable protection for multi-phase circuits while maintaining compatibility with standard panelboard architectures.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat you get with the HDA36020\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: HDA36020\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 20A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600V\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 \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eChoose the HDA36020 when you’re wiring or expanding panelboards in homes, offices, retail spaces, or light industrial environments that require robust 3-phase protection up to 600V. It’s an excellent replacement option for aging breakers in compatible Square D panels, helping you restore or upgrade circuit protection with minimal downtime. The plug-in design makes it particularly well-suited for field upgrades, panel refurbishments, or new installations where fast, reliable connections matter most.\u003c\/p\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panelboard or load center is compatible with Square D plug-in molded case breakers and that the HDA36020 matches the panel’s rating and configuration.\u003c\/li\u003e \u003cli\u003eUse the 3-pole, 20A, 600V specifications for three-phase circuits or three-phase feeders to ensure proper protection and coordination with other protective devices.\u003c\/li\u003e \u003cli\u003eWhen performing replacements, power down the system and follow all local electrical codes and manufacturer instructions to ensure a safe, code-compliant installation.\u003c\/li\u003e \u003cli\u003ePair this breaker with matching OEM components to maintain protective coordination and prevent nuisance trips or mis-timed tripping in the distribution system.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical at a glance\u003c\/h3\u003e\n\u003cp\u003eThe Square D HDA36020 is purpose-built for dependable branch circuit overcurrent and short-circuit protection. Its plug-in design, combined with a thermal-magnetic trip unit, delivers predictable performance across a range of operating conditions, helping protect wiring and connected devices while keeping maintenance straightforward in residential, commercial, and light industrial panels.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355250741410,"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_f71da8a6-df53-4625-a58f-c65baf1a2f38.png?v=1764690739","url":"https:\/\/www.ampstate.com\/products\/square-d-hda36020-20a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}