{"product_id":"cnd63b900","title":"CND63B900 - 900Amp Circuit Breaker","description":"\u003cp\u003e\u003cstrong\u003eCND63B900 - 900Amp Circuit Breaker\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CND63B900 Siemens SENTRON molded-case circuit breaker is a 900-Amp, 3-pole ND frame breaker used in large electrical distribution systems where steady, predictable protection is needed for higher-capacity loads. You’ll typically find this type of breaker in main service switchboards, feeder circuits, and industrial distribution panels operating on 480V and 600V three-phase systems.\u003c\/p\u003e\n\u003cp\u003eThis unit uses a thermal-magnetic trip system, which provides straightforward protection against overloads and short circuits. It also includes a current-limiting design that helps manage fault conditions within its rated interrupting capacity. With interrupting ratings of 100 kA at 480V and 65 kA at 600V, it is intended for systems where fault levels must be properly accounted for in the design and installation.\u003c\/p\u003e\n\u003cp\u003eAt its core, this breaker is about keeping established Siemens electrical systems running as designed—with consistent fit, consistent function, and reliable compatibility within ND frame installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e900 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 overload and short-circuit protection\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 operating temperature\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\u003eBuilt for compatibility with existing Siemens ND frame 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 CND63B900\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 900 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 55.501 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 CND63B900 Siemens SENTRON breaker is designed in accordance with the 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 in accordance with 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 electrical facilities\u003c\/li\u003e\n\u003cli\u003e480V and 600V three-phase systems\u003c\/li\u003e\n\u003cli\u003eHigh-load electrical distribution networks\u003c\/li\u003e\n\u003cli\u003eMaintenance and replacement in existing ND frame systems\u003c\/li\u003e\n\u003cli\u003eEngineered electrical infrastructure requiring coordinated protection\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":49504057655595,"sku":"CND63B900","price":0.0,"currency_code":"USD","in_stock":true},{"title":"Refurbished","offer_id":49504057688363,"sku":"CND63B900 [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/cnd63b900","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}