{"product_id":"hja36020-square-d-molded-case-circuit-breaker-i-line-plug-in-20-amp-3-pole-600-volt","title":"HJA36020 - Square D - PowerPacT H I-Line Molded Case Circuit Breaker - 20 Amp - 3 Pole - 600 Volt","description":"\u003cp\u003e\u003cstrong\u003eThe Square D HJA36020 is a 20A, 3-pole PowerPacT H-Frame molded case circuit breaker with an I-Line plug-in line-side connection, rated 600VAC and built for Square D I-Line panelboards and switchboards.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis thermal-magnetic breaker provides fixed Long-Time and Instantaneous (LI) protection with a 65kA interrupting rating at 480VAC and 100kA at 240VAC. Its current-limiting design cuts peak let-through energy during a fault, protecting downstream equipment and allowing tighter series ratings. The H-Frame is the modern successor to Square D's discontinued F-Frame line and drops directly into existing I-Line mounting space, making it a clean upgrade path from the FC36020, FA36020, and FH36020. A Visi-Trip indicator shows at a glance whether the unit tripped on a fault, and the 80% continuous rating suits standard commercial branch and feeder circuits.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSquare D \/ Schneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003ePowerPacT H-Frame, I-Line, Type HJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eHJA36020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAmperage\u003c\/th\u003e\n\u003ctd\u003e20A (150A frame)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e600VAC, 480VAC, 240VAC, 250VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePoles\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePhase\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAIC Rating\u003c\/th\u003e\n\u003ctd\u003e100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC (UL 489)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMounting Style\u003c\/th\u003e\n\u003ctd\u003eI-Line Plug-In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003eI-Line jaws on line side, mechanical lugs on load side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePhase Sequence\u003c\/th\u003e\n\u003ctd\u003eABC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eContinuous Current Rating\u003c\/th\u003e\n\u003ctd\u003e80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFor Use With\u003c\/th\u003e\n\u003ctd\u003eSquare D I-Line Panelboards and Switchboards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTrip Technology\u003c\/th\u003e\n\u003ctd\u003eThermal Magnetic (LI — Long-Time, Instantaneous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTrip Adjustability\u003c\/th\u003e\n\u003ctd\u003eFixed Thermal \/ Fixed Magnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWire Range\u003c\/th\u003e\n\u003ctd\u003e#14 AWG – 3\/0 AWG (Al\/Cu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReplaces\u003c\/th\u003e\n\u003ctd\u003eSquare D FC36020, FA36020, FH36020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAvailable Options\u003c\/th\u003e\n\u003ctd\u003eShunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Motor Operator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eUL 489, CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, HACR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eApprovals\u003c\/th\u003e\n\u003ctd\u003eUL, CSA, CE, IEC, NOM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConstruction Features\u003c\/th\u003e\n\u003ctd\u003eCurrent Limiting, HACR Rated, Visi-Trip Indicator, Reverse Feed Capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-25°C to 70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShipping Dimensions\u003c\/th\u003e\n\u003ctd\u003e14 x 10 x 10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e8 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the interrupting rating of the HJA36020?\u003c\/h3\u003e\n\u003cp\u003e65kA at 480VAC, 100kA at 240VAC, 25kA at 600VAC, and 20kA at 250VDC.\u003c\/p\u003e\n\u003ch3\u003eWhat does HJA36020 stand for?\u003c\/h3\u003e\n\u003cp\u003eH = PowerPacT H-Frame, J = 65kA interrupting rating at 480VAC, A = I-Line plug-in with ABC phase sequence, 3 = 3 poles, 6 = 600V class, and 020 = 20 amps.\u003c\/p\u003e\n\u003ch3\u003eWhich older Square D breakers does the HJA36020 replace?\u003c\/h3\u003e\n\u003cp\u003eIt is the current replacement for the discontinued FC36020, FA36020, and FH36020. The H-Frame uses the same I-Line mounting space, so no bus modification is required.\u003c\/p\u003e\n\u003ch3\u003eIs the HJA36020 current limiting?\u003c\/h3\u003e\n\u003cp\u003eYes. It limits peak let-through current and energy during a short circuit, which reduces thermal and magnetic stress on downstream conductors and equipment.\u003c\/p\u003e\n\u003ch3\u003eIs the trip setting on the HJA36020 adjustable?\u003c\/h3\u003e\n\u003cp\u003eNo. It uses a fixed thermal and fixed magnetic (LI) trip unit, so the 20A rating is not field-adjustable.\u003c\/p\u003e\n\u003ch3\u003eCan the HJA36020 be reverse fed?\u003c\/h3\u003e\n\u003cp\u003eYes. The breaker is suitable for reverse feed applications, with no line\/load marking restriction under UL 489.\u003c\/p\u003e\n\u003ch3\u003eWhat is the continuous load limit for the HJA36020?\u003c\/h3\u003e\n\u003cp\u003eThe breaker is 80% rated, so continuous loads should not exceed 16 amps unless applied in an assembly listed for 100% continuous duty.\u003c\/p\u003e\n\u003ch3\u003eIs the HJA36020 UL listed?\u003c\/h3\u003e\n\u003cp\u003eYes. It is UL 489 listed and also certified to CSA C22.2 No. 5, IEC 60947-2, and NOM, with CE marking.\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":50162287509752,"sku":"HJA36020","price":574.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/HJA36020-1.webp?v=1786723006","url":"https:\/\/alphabreakersandcontrols.com\/products\/hja36020-square-d-molded-case-circuit-breaker-i-line-plug-in-20-amp-3-pole-600-volt","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}