{"product_id":"square-d-fa36020-molded-case-circuit-breaker-i-line-20a-3-pole-600v","title":"Square D FA36020 Molded Case Circuit Breaker | I-Line Plug-In | 20A 3-Pole 600V","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eSquare D FA36020 — I-Line Plug-In Molded Case Circuit Breaker\u003c\/h2\u003e\n  \u003cp\u003eThe \u003cstrong\u003eSquare D FA36020\u003c\/strong\u003e is a \u003cstrong\u003e3-pole, 20 Amp, 600V thermal-magnetic molded case circuit breaker\u003c\/strong\u003e built for reliable overcurrent protection in commercial and industrial power distribution systems. Featuring an \u003cstrong\u003eI-Line plug-in mounting\u003c\/strong\u003e, it installs quickly and securely into Square D I-Line panelboards and switchboards — no tools required for connection.\u003c\/p\u003e\n  \u003cp\u003eManufactured by \u003cstrong\u003eSchneider Electric under the Square D brand\u003c\/strong\u003e, the FA36020 is engineered for demanding environments where dependable protection and fast installation matter. It includes both \u003cstrong\u003elong-time (LI) and instantaneous trip functions\u003c\/strong\u003e, offering dual-layer protection against sustained overloads and high-magnitude short-circuit faults.\u003c\/p\u003e\n\n  \u003ch2\u003eKey Specifications\u003c\/h2\u003e\n  \u003ctable\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFA36020\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eSquare D \/ Schneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eBreaker Type\u003c\/th\u003e\n\u003ctd\u003eMolded Case Circuit Breaker (MCCB)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eMounting Style\u003c\/th\u003e\n\u003ctd\u003eI-Line Plug-In\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eFrame\u003c\/th\u003e\n\u003ctd\u003eF-Frame (FA Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eAmperage\u003c\/th\u003e\n\u003ctd\u003e20 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003ePoles\u003c\/th\u003e\n\u003ctd\u003e3-Pole \/ 3-Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003e600V AC \/ 250V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eInterrupting Rating\u003c\/th\u003e\n\u003ctd\u003e18kAIC @ 480V \/ 14kAIC @ 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eTrip Unit\u003c\/th\u003e\n\u003ctd\u003eThermal Magnetic — LI (Long-Time \u0026amp; Instantaneous)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eWire Range\u003c\/th\u003e\n\u003ctd\u003e(1) 14–4 AWG Copper \/ (1) 12–4 AWG Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e6\" H × 4.5\" W × 4.13\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eTemperature Rating\u003c\/th\u003e\n\u003ctd\u003e40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eUL 489, CSA, IEC, Federal Spec W-C-375B\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth\u003eApplications\u003c\/th\u003e\n\u003ctd\u003eCommercial, Industrial, OEM, Control Panels\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eWhat Is an I-Line Plug-In Circuit Breaker?\u003c\/h2\u003e\n  \u003cp\u003eAn \u003cstrong\u003eI-Line plug-in circuit breaker\u003c\/strong\u003e is a type of molded case breaker designed to snap directly into Square D I-Line panelboards or switchboards using a blade-style plug-on connection. This eliminates the need for separate line-side wiring to the breaker, saving significant installation time. The FA36020 uses this industry-standard I-Line interface, making it a direct-install solution for Square D I-Line electrical panels in commercial buildings, industrial facilities, and OEM equipment enclosures.\u003c\/p\u003e\n\n  \u003ch2\u003eWhy Choose the Square D FA36020?\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast plug-in installation\u003c\/strong\u003e — I-Line blade connection snaps directly into compatible panelboards, reducing labor time\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDual-function trip protection\u003c\/strong\u003e — Long-time thermal trip guards against sustained overloads; instantaneous magnetic trip responds to high-level short circuits in milliseconds\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade ratings\u003c\/strong\u003e — 600V AC \/ 250V DC voltage rating suitable for a wide range of 3-phase commercial and industrial systems\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact F-frame design\u003c\/strong\u003e — Space-efficient footprint for dense panelboard installations\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-standard certified\u003c\/strong\u003e — UL 489, CSA, and IEC listed for North American and international compliance\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProven Square D reliability\u003c\/strong\u003e — Part of Schneider Electric's trusted I-Line \/ PowerPact family used across thousands of facilities worldwide\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eSquare D I-Line panelboards and switchboards\u003c\/li\u003e\n    \u003cli\u003eCommercial building electrical distribution panels\u003c\/li\u003e\n    \u003cli\u003eIndustrial control equipment and machine panels\u003c\/li\u003e\n    \u003cli\u003eOEM equipment manufacturing\u003c\/li\u003e\n    \u003cli\u003e3-phase motor branch circuits (HACR rated)\u003c\/li\u003e\n    \u003cli\u003eLighting and power distribution feeders\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eModern Equivalent \/ Upgrade Path\u003c\/h2\u003e\n  \u003cp\u003eThe FA36020 is part of the legacy FA Series. Its current Schneider Electric replacement is the \u003cstrong\u003ePowerPact HDA36020\u003c\/strong\u003e, which offers updated performance ratings and enhanced features. Contact our team if you need assistance identifying the right modern equivalent for your panel.\u003c\/p\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n  \u003ch3\u003eWhat panels is the Square D FA36020 compatible with?\u003c\/h3\u003e\n  \u003cp\u003eThe FA36020 is designed for use with \u003cstrong\u003eSquare D I-Line panelboards and switchboards\u003c\/strong\u003e. Its plug-in blade connection is specific to the I-Line system and is not compatible with standard bolt-on or QO-style panels.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat is the interrupting rating of the FA36020?\u003c\/h3\u003e\n  \u003cp\u003eThe FA36020 has an interrupting rating of \u003cstrong\u003e18kAIC at 480V\u003c\/strong\u003e and \u003cstrong\u003e14kAIC at 600V\u003c\/strong\u003e, making it suitable for most commercial and light industrial distribution systems.\u003c\/p\u003e\n\n  \u003ch3\u003eIs the FA36020 still in production?\u003c\/h3\u003e\n  \u003cp\u003eThe FA Series is a legacy Square D product line. The recommended modern replacement is the \u003cstrong\u003eSchneider Electric PowerPact HDA36020\u003c\/strong\u003e. However, the FA36020 remains widely used in existing installations and is still available as new or recertified stock.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat wire sizes are compatible with the FA36020?\u003c\/h3\u003e\n  \u003cp\u003eThe FA36020 accepts \u003cstrong\u003e(1) 14 to 4 AWG copper\u003c\/strong\u003e or \u003cstrong\u003e(1) 12 to 4 AWG aluminum\u003c\/strong\u003e wire on the load side.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat certifications does the FA36020 carry?\u003c\/h3\u003e\n  \u003cp\u003eThe FA36020 is listed under \u003cstrong\u003eUL 489, CSA, IEC, and Federal Specification W-C-375B\u003c\/strong\u003e, making it compliant for use in the United States, Canada, and internationally.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48396207325432,"sku":"FA36020-N","price":439.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/g7mXzBwB-FA34025-N-2T-2-Medium.jpg?v=1778795182","url":"https:\/\/alphabreakersandcontrols.com\/products\/square-d-fa36020-molded-case-circuit-breaker-i-line-20a-3-pole-600v","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}