{"product_id":"square-d-ka36150-molded-case-circuit-breaker-150a-3-pole-600v-i-line-plug-in","title":"Square D KA36150 Molded Case Circuit Breaker | 150A 3-Pole 600V I-Line Plug-In","description":"\u003ch2\u003eSquare D KA36150 – 150 Amp Molded Case Circuit Breaker (I-Line Plug-In)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSquare D KA36150\u003c\/strong\u003e is a heavy-duty, 3-pole molded case circuit breaker (MCCB) engineered for reliable overcurrent and short-circuit protection in demanding industrial and commercial power distribution systems. Featuring Square D's trusted \u003cstrong\u003eI-Line plug-in style\u003c\/strong\u003e connection, this breaker delivers fast, tool-free installation into compatible I-Line panelboards — minimizing downtime and simplifying maintenance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e KA36150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D (Schneider Electric)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBreaker Type:\u003c\/strong\u003e Molded Case Circuit Breaker (MCCB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 150 Amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 25kAIC @ 480V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Type:\u003c\/strong\u003e Thermal-Magnetic (LI – Long-Time \u0026amp; Instantaneous)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Style:\u003c\/strong\u003e I-Line Plug-In\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e KA-Frame\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e UL Listed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat Is the Square D KA36150?\u003c\/h2\u003e\n\u003cp\u003eThe KA36150 is a \u003cstrong\u003ethermal-magnetic molded case circuit breaker\u003c\/strong\u003e from Square D's KA-Frame series. It is designed to protect electrical circuits against overloads and short circuits using a dual-protection mechanism: \u003cem\u003elong-time thermal\u003c\/em\u003e protection for sustained overloads and \u003cem\u003einstantaneous magnetic\u003c\/em\u003e protection for sudden fault currents. This LI (Long-Time \/ Instantaneous) trip characteristic makes it ideal for motor branch circuits, feeder protection, and industrial power distribution panels.\u003c\/p\u003e\n\n\u003ch2\u003eI-Line Plug-In Connection Explained\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eI-Line style plug-in\u003c\/strong\u003e design allows the KA36150 to connect directly into Square D I-Line panelboards and switchboards without additional hardware. This plug-in architecture is a hallmark of Square D's I-Line system, offering:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFast, secure installation and removal\u003c\/li\u003e\n  \u003cli\u003eConsistent, reliable electrical contact\u003c\/li\u003e\n  \u003cli\u003eCompatibility with Square D I-Line distribution equipment\u003c\/li\u003e\n  \u003cli\u003eReduced labor costs during installation and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThe KA36150 is well-suited for a wide range of industrial and commercial applications, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMotor control centers (MCCs)\u003c\/li\u003e\n  \u003cli\u003eIndustrial switchboards and panelboards\u003c\/li\u003e\n  \u003cli\u003eFeeder and branch circuit protection\u003c\/li\u003e\n  \u003cli\u003eManufacturing facilities and process equipment\u003c\/li\u003e\n  \u003cli\u003eCommercial HVAC and power distribution systems\u003c\/li\u003e\n  \u003cli\u003eRetrofit and replacement in existing Square D I-Line installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the Square D KA36150?\u003c\/h2\u003e\n\u003cp\u003eSquare D, a brand of Schneider Electric, is one of the most trusted names in electrical distribution equipment. The KA36150 combines decades of engineering reliability with a plug-in design optimized for modern industrial environments. Whether you're upgrading aging infrastructure or specifying new equipment, the KA36150 offers proven protection backed by Square D's global support network.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does KA36150 mean?\u003c\/strong\u003e\u003cbr\u003eThe \"KA\" refers to Square D's KA-Frame series, \"3\" indicates 3-pole configuration, \"6\" denotes the 600V voltage class, and \"150\" is the ampere rating. Together, KA36150 identifies a 150A, 3-pole, 600V thermal-magnetic molded case circuit breaker.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the KA36150 compatible with Square D I-Line panelboards?\u003c\/strong\u003e\u003cbr\u003eYes. The KA36150 features an I-Line plug-in connection specifically designed for use with Square D I-Line panelboards, switchboards, and motor control centers. Always verify compatibility with the specific panelboard model before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the interrupting rating of the KA36150?\u003c\/strong\u003e\u003cbr\u003eThe KA36150 has an interrupting rating of 25kAIC (25,000 Amperes Interrupting Capacity) at 480V AC, making it suitable for most commercial and light industrial fault current environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat trip functions does the KA36150 include?\u003c\/strong\u003e\u003cbr\u003eIt uses a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions — providing thermal protection against sustained overloads and magnetic protection against instantaneous short-circuit currents.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the KA36150 be used as a motor branch circuit protector?\u003c\/strong\u003e\u003cbr\u003eYes, with appropriate sizing and coordination, the KA36150 can be applied in motor branch circuit protection applications. Consult NEC guidelines and your system's short-circuit current rating (SCCR) for proper application.\u003c\/p\u003e\n\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eThis unit is available in \u003cstrong\u003eNew condition\u003c\/strong\u003e (SKU: KA36150-N). It is ready for immediate installation in compatible Square D I-Line systems.\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48396209357048,"sku":"KA36150-N","price":1897.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/KA36150_Illustration_Front.jpg?v=1778795230","url":"https:\/\/alphabreakersandcontrols.com\/products\/square-d-ka36150-molded-case-circuit-breaker-150a-3-pole-600v-i-line-plug-in","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}