{"product_id":"square-d-ka36225-molded-case-circuit-breaker-225a-3-pole-600v-i-line-plug-in","title":"Square D KA36225 Molded Case Circuit Breaker | 225A 3-Pole 600V I-Line Plug-In","description":"\u003ch2\u003eSquare D KA36225 — 225 Amp Molded Case Circuit Breaker\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSquare D KA36225\u003c\/strong\u003e is a heavy-duty, 3-pole thermal magnetic molded case circuit breaker engineered for reliable overcurrent protection in commercial and industrial power distribution systems. Part of Square D's trusted \u003cstrong\u003eI-Line series\u003c\/strong\u003e, the KA36225 delivers consistent, code-compliant performance in demanding environments.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in \u003cstrong\u003eNew\u003c\/strong\u003e and \u003cstrong\u003eUsed\/Reconditioned\u003c\/strong\u003e conditions — both backed by our quality assurance commitment.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e KA36225\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D \/ Schneider Electric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e I-Line (Type KA)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 225A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole, 3-Phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V AC \/ 250V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 25kA @ 480V AIC\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\u003eMounting Style:\u003c\/strong\u003e I-Line Style Plug-In\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e KA Frame (250A Frame)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4.75\" x 4.5\" x 8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.9 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 40°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat Is the Square D KA36225?\u003c\/h2\u003e\n\n\u003cp\u003eThe KA36225 is a \u003cstrong\u003emolded case circuit breaker (MCCB)\u003c\/strong\u003e designed to protect electrical circuits from damage caused by overloads and short circuits. It uses \u003cstrong\u003ethermal magnetic trip technology\u003c\/strong\u003e — the thermal element responds to sustained overloads over time, while the magnetic element reacts instantly to short-circuit fault currents. Together, these provide a dual-layer defense that keeps industrial panels and distribution boards operating safely.\u003c\/p\u003e\n\n\u003cp\u003eIts \u003cstrong\u003eI-Line plug-in design\u003c\/strong\u003e allows fast, tool-reduced installation directly onto compatible Square D I-Line panelboards and switchboards — making it ideal for both new construction and retrofit projects where minimizing downtime is critical.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial power distribution panels\u003c\/li\u003e\n  \u003cli\u003eCommercial electrical switchboards\u003c\/li\u003e\n  \u003cli\u003eMotor feeder circuit protection\u003c\/li\u003e\n  \u003cli\u003eManufacturing facility branch circuit protection\u003c\/li\u003e\n  \u003cli\u003eRetrofit and replacement of discontinued I-Line breakers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose Alpha Brokers \u0026amp; Controls?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ New and quality-tested used units available\u003c\/li\u003e\n  \u003cli\u003e✅ Fast shipping on in-stock inventory\u003c\/li\u003e\n  \u003cli\u003e✅ Knowledgeable team specializing in industrial electrical components\u003c\/li\u003e\n  \u003cli\u003e✅ Competitive pricing on hard-to-find and discontinued breakers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs the Square D KA36225 discontinued?\u003c\/h3\u003e\n\u003cp\u003eYes, the KA36225 has been discontinued by Schneider Electric \/ Square D. However, it remains widely available through authorized surplus and secondary market suppliers like Alpha Brokers \u0026amp; Controls. Used and reconditioned units are a cost-effective alternative for replacement and maintenance needs.\u003c\/p\u003e\n\n\u003ch3\u003eWhat panelboards is the KA36225 compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe KA36225 is compatible with Square D I-Line style panelboards and switchboards that accept I-Line plug-in breakers in the 250A frame class.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the interrupting rating of the KA36225?\u003c\/h3\u003e\n\u003cp\u003eThe KA36225 has a standard interrupting capacity of \u003cstrong\u003e25kA at 480V AC\u003c\/strong\u003e, making it suitable for most commercial and light industrial fault current environments.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does \"thermal magnetic\" mean in a circuit breaker?\u003c\/h3\u003e\n\u003cp\u003eThermal magnetic circuit breakers use two protection mechanisms: a \u003cstrong\u003ebimetallic strip\u003c\/strong\u003e that heats and trips under prolonged overload (long-time protection), and an \u003cstrong\u003eelectromagnetic coil\u003c\/strong\u003e that trips instantaneously under high short-circuit currents. The KA36225 includes both LI — Long-Time and Instantaneous trip functions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between new and used condition?\u003c\/h3\u003e\n\u003cp\u003eNew units are unused, in original or equivalent condition. Used\/reconditioned units have been inspected and tested to confirm proper operation. Both options are clearly labeled and priced accordingly.\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48396209488120,"sku":"KA36225-N","price":1897.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":48396209520888,"sku":"KA36225-U","price":556.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/shopping-1-copy_29798d6e-a9e4-4d2a-951f-3374e35e27ff.jpg?v=1778795233","url":"https:\/\/alphabreakersandcontrols.com\/products\/square-d-ka36225-molded-case-circuit-breaker-225a-3-pole-600v-i-line-plug-in","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}