{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED32-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED32-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED32-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED32-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED32-0KA0, molded case circuit breaker, 3-pole, 50 A rated continuous current, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V, TM210 thermal-magnetic release, shunt trip, IP40 front.","salesMarkdown":"## Line protection MCCB with shunt trip The Siemens SENTRON 3VA1050-4ED32-0KA0 is a 3-pole molded case circuit breaker rated for line protection, carrying 50 A continuous at 40 °C and holding that rating up to 50 °C before derating to 48 A at 55 °C and 45 A at 70 °C. The TM210 thermal-magnetic release handles overload and short-circuit protection; the integrated shunt trip (order code 3VA9688-0BL33) allows remote tripping via a control signal. Breaking capacity runs 121 kA at 240 V AC, 75.6 kA at 415 V, and 11.9 kA at 690 V — enough for high-fault utility feeds or transformer secondaries without cascading upstream breakers. Width is 76.2 mm (roughly 3 inches), depth 70 mm, height 130 mm. No auxiliary contacts or undervoltage release on this variant — the only integrated accessory is the shunt trip.","metaTitle":"Siemens 3VA1050-4ED32-0KA0 SENTRON MCCB, 50 A, 3-Pole, 121 k","metaDescription":"Siemens 3VA1050-4ED32-0KA0 SENTRON molded case circuit breaker, 50 A rated at 40 °C, 3-pole, 121 kA breaking at 240 V. IP40 front. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"48 A","at 60 °C":"47 A","at 65 °C":"46 A","at 70 °C":"45 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"50 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","Design of the overcurrent release":"TM210","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"50 A","Adjustable response value current / li max.":"500 A","Adjustable response value current / li min.":"500 A","Adjustable response value current / lr min.":"50 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=251601&mlfb=3VA1050-4ED32-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED32-0KA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1050-4ED32-0KA0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request with quantity; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1050-4ED32-0KA0 at 240 V?","answer":"121 kA at 240 V AC, with 75.6 kA at 415 V and 11.9 kA at 690 V."},{"question":"Does 3VA1050-4ED32-0KA0 include an undervoltage release or auxiliary contacts?","answer":"No. This variant has no undervoltage release and no auxiliary contacts; the only integrated release is the shunt trip (order code 3VA9688-0BL33)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED32-0KA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1050-4ED32-0KA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}