{"product_id":"square-d-hjl36100u33x-powerpact-molded-case-circuit-breaker-100a-3-pole-600v-feed-thru","title":"Square D HJL36100U33X PowerPact Molded Case Circuit Breaker | 100A 3-Pole 600V Feed-Thru","description":"\u003ch2\u003eSquare D HJL36100U33X – PowerPact H-Frame Molded Case Circuit Breaker\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSquare D HJL36100U33X\u003c\/strong\u003e (also known as the \u003cstrong\u003eSchneider Electric HJL36100U33X\u003c\/strong\u003e) is a high-performance, current-limiting, solid-state molded case circuit breaker from the \u003cstrong\u003ePowerPact H-Frame series\u003c\/strong\u003e. Engineered for demanding industrial and commercial power distribution systems, this breaker delivers reliable overcurrent protection at \u003cstrong\u003e100 Amps, 3 Poles, and up to 600 Volts AC\u003c\/strong\u003e — with a feed-thru mounting configuration for flexible panel integration.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with the \u003cstrong\u003eMicrologic 3.2S electronic trip unit\u003c\/strong\u003e (LSI — Long-Time, Short-Time, and Instantaneous), this circuit breaker offers advanced, adjustable protection well beyond what standard thermal-magnetic breakers can provide. It is \u003cstrong\u003eUL 489 Listed\u003c\/strong\u003e and \u003cstrong\u003esuitable for reverse-fed applications\u003c\/strong\u003e, making it one of the most versatile options in its class.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHJL36100U33X\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare D \/ Schneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePowerPact H-Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Pole (3P)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterrupting Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100kA @ 240VAC \/ 65kA @ 480VAC \/ 25kA @ 600VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eH-Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFeed-Thru \/ Unit Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrip Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolid-State Electronic (Micrologic 3.2S)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrip Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLSI – Long-Time, Short-Time, Instantaneous\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Phase (3PH)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Limiting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReverse Fed Suitable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2-Pole Compatible\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLine \u0026amp; Load Side Lug Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListings \/ Certifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL 489 Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterrupt Rating Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJ (High Interrupting)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat Is the Square D HJL36100U33X?\u003c\/h2\u003e\n\n\u003cp\u003eThe HJL36100U33X is a \u003cstrong\u003ecurrent-limiting, solid-state molded case circuit breaker (MCCB)\u003c\/strong\u003e designed for three-phase industrial power distribution panels, switchboards, and motor control centers (MCCs). The \"HJL\" designation indicates it belongs to the PowerPact H-Frame family with a J-rated (high) interrupting capacity — a critical feature in facilities with high available fault current.\u003c\/p\u003e\n\n\u003cp\u003eUnlike thermal-magnetic breakers, the \u003cstrong\u003eMicrologic 3.2S electronic trip unit\u003c\/strong\u003e provides precise, adjustable protection curves for long-time delay, short-time delay, and instantaneous tripping — giving engineers and electricians far greater control over coordination in complex distribution systems.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose the HJL36100U33X?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Interrupting Capacity:\u003c\/strong\u003e Rated up to 100kA at 240VAC — handles extreme fault currents without failure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Limiting Technology:\u003c\/strong\u003e Reduces let-through energy, protecting downstream equipment from damage during faults.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Electronic Trip:\u003c\/strong\u003e Micrologic 3.2S with LSI functions allows precise coordination in tiered distribution systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeed-Thru \/ Unit Mount:\u003c\/strong\u003e Flexible installation for use in panelboards and switchboards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReverse-Fed Capable:\u003c\/strong\u003e Can be connected with line and load reversed — ideal for complex system designs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-Pole Compatible:\u003c\/strong\u003e Can be applied in 2-pole configurations for added versatility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUL 489 Listed:\u003c\/strong\u003e Meets rigorous North American safety and performance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIndustrial power distribution panels and switchboards\u003c\/li\u003e\n  \u003cli\u003eMotor control centers (MCCs)\u003c\/li\u003e\n  \u003cli\u003eCommercial and industrial buildings with 480V or 600V systems\u003c\/li\u003e\n  \u003cli\u003eManufacturing facilities requiring high fault current protection\u003c\/li\u003e\n  \u003cli\u003eData centers and critical infrastructure\u003c\/li\u003e\n  \u003cli\u003eReplacement and retrofit applications for Square D PowerPact H-Frame systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does \"feed-thru\" mean on the HJL36100U33X?\u003c\/h3\u003e\n\u003cp\u003eFeed-thru (also written as \"feed through\") refers to the mounting and wiring configuration where both line-side and load-side lug terminals are accessible, allowing conductors to pass through for daisy-chain or multi-breaker panel wiring. This is distinct from plug-in style breakers designed for specific bus configurations.\u003c\/p\u003e\n\n\u003ch3\u003eIs the HJL36100U33X the same as the Schneider Electric HJL36100U33X?\u003c\/h3\u003e\n\u003cp\u003eYes. Square D is a brand of \u003cstrong\u003eSchneider Electric\u003c\/strong\u003e. The HJL36100U33X is manufactured and marketed under both the Square D and Schneider Electric names. The product is identical.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the interrupting rating of the HJL36100U33X?\u003c\/h3\u003e\n\u003cp\u003eThe interrupting rating is \u003cstrong\u003e100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC\u003c\/strong\u003e — classified as a J-rated (high interrupting) circuit breaker.\u003c\/p\u003e\n\n\u003ch3\u003eWhat trip unit does the HJL36100U33X use?\u003c\/h3\u003e\n\u003cp\u003eIt uses the \u003cstrong\u003eMicrologic 3.2S electronic trip unit\u003c\/strong\u003e, which provides LSI protection: Long-Time delay, Short-Time delay, and Instantaneous trip functions. The trip unit is non-interchangeable (fixed to this breaker frame).\u003c\/p\u003e\n\n\u003ch3\u003eCan the HJL36100U33X be used in reverse-fed applications?\u003c\/h3\u003e\n\u003cp\u003eYes. The HJL36100U33X is \u003cstrong\u003elisted as suitable for reverse-fed (back-fed) applications\u003c\/strong\u003e, meaning the load side can be used as the line side when required by the installation design.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between HJL, HJA, and HDL Square D breakers?\u003c\/h3\u003e\n\u003cp\u003eAll three are PowerPact H-Frame breakers at 100A\/600V, but differ in mounting and interrupting styles. The \u003cstrong\u003eHJL\u003c\/strong\u003e uses unit\/feed-thru mounting with J-rated interrupting capacity. The \u003cstrong\u003eHJA\u003c\/strong\u003e uses I-Line plug-in mounting. The \u003cstrong\u003eHDL\u003c\/strong\u003e uses I-Line mounting with a standard (D-rated) interrupting capacity.\u003c\/p\u003e\n\n\u003ch3\u003eIs this breaker in stock and ready to ship?\u003c\/h3\u003e\n\u003cp\u003eYes. Alpha Brokers \u0026amp; Controls stocks the HJL36100U33X in \u003cstrong\u003enew condition\u003c\/strong\u003e and ships promptly. Contact us for lead time and volume pricing.\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48396209225976,"sku":"HJL36100U33X-N","price":1009.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/CB-HJL36100U33X-1.jpg?v=1778795224","url":"https:\/\/alphabreakersandcontrols.com\/products\/square-d-hjl36100u33x-powerpact-molded-case-circuit-breaker-100a-3-pole-600v-feed-thru","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}