{"product_id":"cnd63b120","title":"CND63B120 - 1200Amp Circuit Breaker","description":"\u003cp\u003e\u003cstrong\u003eCND63B120 - 1200Amp Circuit Breaker\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CND63B120 Siemens SENTRON molded case circuit breaker is a 1200 Amp, 3-pole ND frame breaker used in large commercial and industrial power distribution systems where electrical loads are heavy and consistent protection is essential. You’ll typically find this type of breaker in main switchboards, service entrances, and large feeder circuits operating on 480V and 600V three-phase systems.\u003c\/p\u003e\n\u003cp\u003eThis unit uses a thermal-magnetic trip system, which provides standard protection against overloads and short circuits. It also features a current-limiting design, helping the system respond to fault conditions within its rated interrupting capacity. With ratings of 100kA at 480V and 65kA at 600V, it is intended for systems where available fault current levels need to be properly accounted for during design and operation.\u003c\/p\u003e\n\u003cp\u003eAt its core, this breaker is used to keep existing Siemens ND frame systems operating as intended — matching form, fit, and function in established electrical infrastructure where consistency matters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1200 Amp, 3-pole Siemens ND frame molded case circuit breaker\u003c\/li\u003e\n\u003cli\u003eDesigned for Siemens SENTRON power distribution systems\u003c\/li\u003e\n\u003cli\u003eThermal-magnetic trip unit for standard protection functions\u003c\/li\u003e\n\u003cli\u003eCurrent-limiting design for controlled fault response\u003c\/li\u003e\n\u003cli\u003eHigh interrupting ratings: 100kA @ 480V, 65kA @ 600V\u003c\/li\u003e\n\u003cli\u003eIncludes line and load side lugs (TA4N8500)\u003c\/li\u003e\n\u003cli\u003eAccepts 250–500 kcmil Cu\/Al conductors\u003c\/li\u003e\n\u003cli\u003e40°C rated for defined operating environments\u003c\/li\u003e\n\u003cli\u003e3-pole simultaneous disconnect for three-phase systems\u003c\/li\u003e\n\u003cli\u003eUsed in feeder and main service applications\u003c\/li\u003e\n\u003cli\u003eDesigned for maintenance and replacement in existing systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e CND63B120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Case Circuit Breaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Type:\u003c\/strong\u003e ND Frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 1200 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\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 100kA @ 480V; 65kA @ 600V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Unit:\u003c\/strong\u003e Thermal-Magnetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Rating:\u003c\/strong\u003e 40°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Range:\u003c\/strong\u003e 250–500 kcmil Cu\/Al\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Line and load side lugs (TA4N8500)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9 in W x 16 in H x 6 in D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 54.739 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CND63B120 Siemens SENTRON breaker is designed in accordance with UL 489 and IEC 60947-2 standards for molded case circuit breakers used in industrial and commercial electrical distribution systems. It is intended for installation in compatible Siemens ND frame assemblies and should be installed by qualified electrical personnel following applicable electrical codes and manufacturer guidelines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial power distribution systems\u003c\/li\u003e\n\u003cli\u003eSiemens SENTRON switchboards and panelboards\u003c\/li\u003e\n\u003cli\u003eMain service and feeder circuit protection\u003c\/li\u003e\n\u003cli\u003eLarge commercial facilities and infrastructure\u003c\/li\u003e\n\u003cli\u003e480V and 600V three-phase systems\u003c\/li\u003e\n\u003cli\u003eHigh-load electrical distribution setups\u003c\/li\u003e\n\u003cli\u003eMaintenance and replacement in existing ND frame systems\u003c\/li\u003e\n\u003cli\u003eEngineered electrical distribution networks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eSiemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Siemens AG or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"New In Box","offer_id":49504057557291,"sku":"CND63B120","price":0.0,"currency_code":"USD","in_stock":true},{"title":"Refurbished","offer_id":49504057590059,"sku":"CND63B120   [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/cnd63b120","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}