{"product_id":"square-d-jja36175-molded-case-circuit-breaker-175a-3-pole-600v-i-line-plug-in","title":"Square D JJA36175 Molded Case Circuit Breaker | 175A 3-Pole 600V I-Line Plug-In","description":"\u003cp\u003e\u003cstrong\u003eThe Square D JJA36175\u003c\/strong\u003e is a heavy-duty, 3-pole molded case circuit breaker (MCCB) from the PowerPact™ J-Frame series by Schneider Electric. Rated at \u003cstrong\u003e175 Amps and 600VAC\u003c\/strong\u003e, this I-Line plug-in breaker is engineered for reliable overload and short-circuit protection in commercial and industrial power distribution systems.\u003c\/p\u003e\n\n\u003cp\u003eWith its \u003cstrong\u003ethermal-magnetic trip unit\u003c\/strong\u003e, the JJA36175 delivers Long-Time (L) and Instantaneous (I) protection — offering precise, dependable response to both sustained overloads and sudden fault conditions. The I-Line plug-in design ensures fast, secure installation into Square D I-Line panelboards and switchboards, making it ideal for new installations, retrofits, and upgrades.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e JJA36175\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D by Schneider Electric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e PowerPact™ J-Frame (JJA)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 175A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600VAC \/ 250VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole, 3-Phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase Connection:\u003c\/strong\u003e ABC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 65kA @ 480VAC | 25kA @ 600VAC | 100kA @ 240VAC\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\u003eContinuous Current Rating:\u003c\/strong\u003e 80%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e I-Line™ Plug-In (Line Side) \/ Mechanical Lug (Load Side)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Range:\u003c\/strong\u003e 4 AWG to 4\/0 AWG (Copper or Aluminum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Plug-On \/ I-Line\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -25°C to 70°C (-13°F to 158°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4.12\" W × 5\" D × 7.52\" H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e J-Frame\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Setpoints:\u003c\/strong\u003e 875A (Low) \/ 1750A (High)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHACR Rated:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReverse Feed:\u003c\/strong\u003e Suitable for reverse-fed applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisi-Trip Indicator:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCertifications \u0026amp; Compliance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ UL Listed (UL 489)\u003c\/li\u003e\n  \u003cli\u003e✅ CSA Certified\u003c\/li\u003e\n  \u003cli\u003e✅ CE Marked\u003c\/li\u003e\n  \u003cli\u003e✅ IEC Certified\u003c\/li\u003e\n  \u003cli\u003e✅ NOM Certified\u003c\/li\u003e\n  \u003cli\u003e✅ RoHS Compliant\u003c\/li\u003e\n  \u003cli\u003e✅ Mercury Free \u0026amp; PVC Free\u003c\/li\u003e\n  \u003cli\u003e✅ Current Limiting\u003c\/li\u003e\n  \u003cli\u003e✅ Non-Interchangeable Trip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat Is the Square D JJA36175?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eJJA36175 is a molded case circuit breaker (MCCB)\u003c\/strong\u003e — a switching and protective device designed to safeguard electrical circuits from damage caused by excess current. Unlike fuses, MCCBs can be reset after a trip event, making them ideal for protecting feeder and branch circuits in commercial buildings, industrial facilities, and data centers.\u003c\/p\u003e\n\n\u003cp\u003eThe \"JJA\" designation indicates this breaker belongs to Square D's PowerPact J-Frame family, which covers 15A to 250A applications and is compatible with Square D I-Line panelboards and switchboards. The I-Line plug-in design simplifies installation and replacement without requiring extensive rewiring.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCommercial and industrial power distribution panels\u003c\/li\u003e\n  \u003cli\u003eFeeder and branch circuit protection\u003c\/li\u003e\n  \u003cli\u003eI-Line style panelboards and switchboards\u003c\/li\u003e\n  \u003cli\u003eManufacturing facilities and process equipment\u003c\/li\u003e\n  \u003cli\u003eData centers and critical infrastructure\u003c\/li\u003e\n  \u003cli\u003eUpgrade\/replacement for legacy KC36175 and KH36175 breakers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose the JJA36175?\u003c\/h2\u003e\n\u003cp\u003eThe Square D PowerPact J-Frame series is trusted by electrical engineers and contractors worldwide for its rugged construction, flexible accessory options, and proven protection performance. The JJA36175 delivers 65kA interrupting capacity at 480VAC — well above the interrupting demands of most commercial and industrial installations — ensuring maximum protection in high-fault environments.\u003c\/p\u003e\n\n\u003cp\u003eIts I-Line plug-in connection provides a clean, efficient installation experience, reducing downtime during panel upgrades or emergency replacements. The non-interchangeable thermal-magnetic trip unit ensures consistent, tamper-resistant performance over the life of the breaker.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat panelboards is the JJA36175 compatible with?\u003c\/strong\u003e\u003cbr\u003eThe JJA36175 is designed for Square D I-Line style panelboards and switchboards that accept J-Frame plug-in breakers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the interrupting rating of the JJA36175?\u003c\/strong\u003e\u003cbr\u003eThe JJA36175 has an interrupting rating of 65kA at 480VAC, 25kA at 600VAC, and 100kA at 240VAC.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the JJA36175 replace a KC36175 or KH36175?\u003c\/strong\u003e\u003cbr\u003eYes. The JJA36175 is a direct upgrade replacement for legacy Square D KC36175 and KH36175 circuit breakers in compatible I-Line panelboards.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the JJA36175 suitable for reverse-fed applications?\u003c\/strong\u003e\u003cbr\u003eYes, the JJA36175 is rated and listed for reverse-fed applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat wire sizes does the JJA36175 accept?\u003c\/strong\u003e\u003cbr\u003eThe JJA36175 accepts wire sizes from 4 AWG to 4\/0 AWG for both copper and aluminum conductors on the load side lug terminals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat trip functions does the JJA36175 have?\u003c\/strong\u003e\u003cbr\u003eThe JJA36175 features a thermal-magnetic trip unit with Long-Time (L) and Instantaneous (I) trip functions for overload and short-circuit protection.\u003c\/p\u003e","brand":"Square D \/ Schneider Electric","offers":[{"title":"New","offer_id":48396209291512,"sku":"JJA36175-N","price":986.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/JJA36175-New-1_4b25df9b-3a13-4098-8d88-25baadc0dda1.jpg?v=1778795226","url":"https:\/\/alphabreakersandcontrols.com\/products\/square-d-jja36175-molded-case-circuit-breaker-175a-3-pole-600v-i-line-plug-in","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}