{"product_id":"nxd63b120-siemens-sentron-1200a-3-pole-600v-thermal-magnetic-molded-case-circuit-breaker","title":"NXD63B120 | Siemens Sentron 1200A 3-Pole 600V Thermal-Magnetic Molded Case Circuit Breaker","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Siemens® NXD63B120 is a Sentron Series molded case circuit breaker (MCCB) designed for high-capacity protection in industrial and commercial power distribution systems. Rated for 1200 amps, 600 volts, and 3 poles, it features a thermal-magnetic, non-interchangeable trip unit that delivers dependable overload and short-circuit protection. Built on the ND frame, this breaker combines robust construction with standard interrupting capacity for reliable performance under heavy electrical loads.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens \/ ITE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCircuit Protection Devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNXD63B120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMolded Case Circuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSentron Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eND Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterrupting Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 kA @ 600V, 50 kA @ 480V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrip Unit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermal-Magnetic (non-interchangeable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLong-Time (overload) and Instantaneous (short-circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40°C (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo lugs installed (field-configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals \/ Standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL 489, IEC 60947-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDesign Feature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard breaking capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuitable for enclosed panelboard installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 × 16 × 6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMolded case with steel mounting hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens Breakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47 lbs (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About NXD63B120\u003c\/h4\u003e\n\u003cp\u003eThe NXD63B120 belongs to the Siemens Sentron NXD family of molded case circuit breakers, engineered for precision and safety in low-voltage electrical systems. Designed for 3-phase, 600V AC operation, it supports an interrupting capacity of 50 kA at 480V and 25 kA at 600V, providing strong fault-clearing capability for critical installations. This model features a bolt-on mounting design for secure panel integration and includes a non-interchangeable thermal-magnetic trip unit, which combines long-time overload and instantaneous short-circuit protection. Operating at a standard 40°C calibration, the NXD63B120 complies with UL 489 and IEC 60947-2 standards, making it suitable for power distribution panels, switchboards, and control assemblies requiring durable, high-current circuit protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Current Capacity: Rated 1200A, ideal for large-scale electrical distribution systems.\u003c\/li\u003e\n\u003cli\u003eThermal-Magnetic Trip Unit: Provides both overload (thermal) and short-circuit (magnetic) protection.\u003c\/li\u003e\n\u003cli\u003eStandard Interrupting Ratings: 50 kA @ 480V and 25 kA @ 600V for dependable fault clearing.\u003c\/li\u003e\n\u003cli\u003eBolt-On Mounting: Ensures a secure and stable installation in panelboards or switchgear.\u003c\/li\u003e\n\u003cli\u003eNon-Interchangeable Trip Unit: Factory-calibrated for optimal performance and reliability.\u003c\/li\u003e\n\u003cli\u003eUL 489 and IEC 60947-2 Certified: Meets international standards for molded case circuit breakers.\u003c\/li\u003e\n\u003cli\u003eCompact ND Frame: Space-efficient 9 × 16 × 6 in. design for simplified integration.\u003c\/li\u003e\n\u003cli\u003eRugged Construction: Engineered for durability in harsh industrial operating conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe NXD63B120 delivers the high current protection and reliability demanded in industrial power distribution and motor control systems.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49105086185728,"sku":"NXD63B120","price":5806.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/NXD63B120.jpg?v=1785539824","url":"https:\/\/alotechparts.com\/products\/nxd63b120-siemens-sentron-1200a-3-pole-600v-thermal-magnetic-molded-case-circuit-breaker","provider":"Alo Tech Solutions","version":"1.0","type":"link"}