{"product_id":"square-d-plm34120cu44a-circuit-breaker","title":"Square D | PLM34120CU44A | Circuit Breaker | 1200A | 3-Pole | 100kA","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D PLM34120CU44A\u003c\/strong\u003e is a purpose-built circuit breaker designed for demanding industrial and commercial power systems. Engineered to meet exacting specifications, this 1200A, 3-Pole device delivers dependable protection in environments where high fault-current handling and reliable tripping are non-negotiable.\u003c\/p\u003e \u003cp\u003eKey features at a glance\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage capacity:\u003c\/strong\u003e 1200A, making it suitable for large feeders and main distribution paths in sizable panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole, ideal for three-phase electrical systems common in manufacturing, data centers, and heavy equipment installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting rating:\u003c\/strong\u003e 100kA, providing a robust margin to safely interrupt high-energy faults and protect downstream equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication scope:\u003c\/strong\u003e designed for maintenance, retrofit, and replacement projects where exact spec matching is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this model stands out for serious installations\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong_precise compatibility\u003e: The PLM34120CU44A is identified by its part number, which is the best reference for ensuring a precise fit in your Square D panel and configuration.\u003c\/strong_precise\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection\u003c\/strong\u003e: With a 100kA interrupting capacity, it’s engineered to handle substantial fault currents without compromising safety or performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase reliability\u003c\/strong\u003e: The 3-Pole design aligns with standard three-phase systems, supporting balanced protection across all phases and reducing the risk of uneven fault responses.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and scenarios\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eRetrofits in large commercial or industrial panels where existing breakers require higher amperage and enhanced fault-current protection.\u003c\/li\u003e \u003cli\u003eMaintenance replacements in facilities with heavy motor loads, conveyors, presses, or other three-phase equipment that demand robust protection and rapid interruption.\u003c\/li\u003e \u003cli\u003eNew installations or panel upgrades that require exact 1200A, 3-Pole, 100kA specifications to meet system design and safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical considerations for procurement and installation\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eVerify fit and ratings before ordering\u003c\/strong\u003e: The Part Number PLM34120CU44A is the most reliable reference for compatibility with your Square D panel configuration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlan for installation\u003c\/strong\u003e: Engage a qualified electrician or electrical technician to ensure proper mounting, wiring, and adherence to safety practices during replacement or retrofit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel labeling and documentation\u003c\/strong\u003e: Update panel schedules to reflect the new device, its amperage, and its interrupting rating to support future maintenance and inspections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat you gain with this Square D breaker\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePeace of mind from a high-capacity, reliable protective device tailored for demanding power systems.\u003c\/li\u003e \u003cli\u003eImproved protection for critical equipment and reduced downtime due to faster, dependable fault interruption.\u003c\/li\u003e \u003cli\u003eA targeted, specification-driven replacement option that minimizes guesswork during retrofits and maintenance projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425681002658,"sku":"PLM34120CU44A","price":20626.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-plm34120cu44a-circuit-breaker-1200a-3-pole-100ka-415.webp?v=1789441140","url":"https:\/\/www.ampstate.com\/products\/square-d-plm34120cu44a-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}