{"product_id":"square-d-jjl36150-molded-case-circuit-breaker-150a-3-pole-600v-feed-thru","title":"Square D JJL36150 Molded Case Circuit Breaker | 150A 3-Pole 600V Feed-Thru","description":"\u003ch2\u003eSquare D JJL36150 – 150 Amp, 3-Pole, 600V Current-Limiting Molded Case Circuit Breaker (Feed-Thru)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSquare D JJL36150\u003c\/strong\u003e is a high-performance, current-limiting, thermal magnetic molded case circuit breaker engineered for demanding commercial and industrial power distribution applications. Part of Schneider Electric's trusted \u003cstrong\u003ePowerpact J-Frame\u003c\/strong\u003e family, this 150-amp breaker delivers superior short-circuit protection with one of the highest interrupting ratings in its class — up to \u003cstrong\u003e100kA at 240VAC\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eWith its \u003cstrong\u003efeed-through (feed-thru) mounting design\u003c\/strong\u003e, the JJL36150 is ideal for installations requiring both line and load side lug terminals, making it suitable for reverse-fed applications without requiring additional hardware. Whether you're specifying for a new panel build, upgrading aging infrastructure, or replacing a failed unit, this breaker is a direct, drop-in solution.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e JJL36150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Schneider Electric \/ Square D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e Powerpact™ J-Frame\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e JJL (Current Limiting)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3-Pole (3P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-Phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600VAC \/ 250VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Feed-Through (Feed-Thru) — Unit Mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Type:\u003c\/strong\u003e Thermal Magnetic — Non-Interchangeable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Functions:\u003c\/strong\u003e LI — Long-Time \u0026amp; Instantaneous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Line \u0026amp; Load Side Lug Terminals Included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable for Reverse Fed Applications:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL Listed, CSA Certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInterrupting Ratings (AIC)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e100kA @ 240VAC\u003c\/li\u003e\n  \u003cli\u003e65kA @ 480VAC\u003c\/li\u003e\n  \u003cli\u003e25kA @ 600VAC\u003c\/li\u003e\n  \u003cli\u003e20kA @ 250VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhat Makes the JJL36150 Stand Out?\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCurrent-Limiting Technology:\u003c\/strong\u003e The JJL series uses current-limiting action to reduce the let-through energy during a fault, protecting downstream equipment and bus structures more effectively than standard interrupting breakers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeed-Thru Design:\u003c\/strong\u003e Unlike plug-in or bolt-on breakers, the feed-through configuration provides both line and load side connections — offering flexibility in complex distribution panel layouts and eliminating the need for additional lug kits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReverse-Fed Capable:\u003c\/strong\u003e The JJL36150 is factory-rated for reverse-fed operation, making it suitable for bus tie and main breaker applications without field modification or special ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePowerpact J-Frame Platform:\u003c\/strong\u003e Backed by Schneider Electric's global engineering and manufacturing standards, the Powerpact family is one of the most widely specified and supported MCCB platforms in North America.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCommercial and industrial distribution panelboards\u003c\/li\u003e\n  \u003cli\u003eMain circuit protection in 480V and 600V systems\u003c\/li\u003e\n  \u003cli\u003eFeeder circuit protection for motors, HVAC, and heavy equipment\u003c\/li\u003e\n  \u003cli\u003eBus tie and reverse-fed switchboard configurations\u003c\/li\u003e\n  \u003cli\u003eData centers, manufacturing plants, and utility substations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does \"feed-thru\" mean on a circuit breaker?\u003c\/strong\u003e\u003cbr\u003e\nA feed-through (feed-thru) circuit breaker includes both line-side and load-side lug terminals built into the unit, allowing conductors to be landed directly on both ends of the breaker. This eliminates the need for a separate lug kit and supports reverse-fed installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the JJL36150 suitable for reverse-fed applications?\u003c\/strong\u003e\u003cbr\u003e\nYes. The Square D JJL36150 is UL-listed and factory-rated for reverse-fed use, meaning power can be applied to either the line or load terminals without derating or special approval.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between JJL, JGL, and JDL breakers?\u003c\/strong\u003e\u003cbr\u003e\nAll three are Square D J-Frame molded case breakers at 150A\/600V, but they differ in interrupting capacity. The JDL offers standard interrupting capacity (18kA@480V), the JGL provides high interrupting capacity (35kA@480V), and the JJL is the current-limiting type with the highest rating (65kA@480V \/ 100kA@240V).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat frame size is the JJL36150?\u003c\/strong\u003e\u003cbr\u003e\nThe JJL36150 is a J-Frame molded case circuit breaker — a mid-range frame size commonly used for 100A to 250A applications in three-phase power distribution systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this breaker in stock and ready to ship?\u003c\/strong\u003e\u003cbr\u003e\nYes. Alpha Brokers \u0026amp; Controls stocks the JJL36150 new-in-box and ready for fast shipment. Contact us for lead time and bulk pricing.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cem\u003eSKU: JJL36150-N  |  Condition: New  |  Sold by Alpha Brokers \u0026amp; Controls\u003c\/em\u003e\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48396209324280,"sku":"JJL36150-N","price":875.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/JJL36150-1.jpg?v=1778795228","url":"https:\/\/alphabreakersandcontrols.com\/products\/square-d-jjl36150-molded-case-circuit-breaker-150a-3-pole-600v-feed-thru","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}