{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED36-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED36-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED36-0BH0, 3-pole molded case circuit breaker, Line protection, 50 A rated continuous current Iu, TM210 thermal-magnetic release, 121 kA breaking capacity at 240 V AC, undervoltage release, IP40 front.","salesMarkdown":"The 50 A rating holds flat from 40 °C through 50 °C, then derates to 48 A at 55 °C and 45 A at 70 °C — so in a warm enclosure you lose about 10 % at the top end. Breaking capacity runs 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The UVR means the breaker drops open if control voltage falls below the dropout threshold — common on safety circuits or E-stop strings where loss of control power should also kill the load. The trip alarm switch gives a separate signal when the breaker trips on fault, not just when manually opened, which is useful for remote annunciation or PLC fault-logging.","metaTitle":"Siemens 3VA1050-4ED36-0BH0 SENTRON MCCB, 50 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1050-4ED36-0BH0 molded case circuit breaker, 50 A rated, 121 kA breaking at 240 V. TM210 release, UVR, 2 aux + 1 alarm. Active production. Quoted to order.","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":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=452587&mlfb=3VA1050-4ED36-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1050-4ED36-0BH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"Will 3VA1050-4ED36-0BH0 drop into a panel specified for 3VA1112-5EF32-0CA0?","answer":"No. The 3VA1112-5EF32-0CA0 is a physically larger frame with a different rating and footprint. The 3VA1050-4ED36-0BH0 will not fit the same panel cutout or bus connections without rewiring."},{"question":"What is the breaking capacity of 3VA1050-4ED36-0BH0 at 415 V?","answer":"75.6 kA at 415 V AC. That is the rating most relevant for 400 V-class industrial distribution panels."},{"question":"What auxiliary contacts does 3VA1050-4ED36-0BH0 include?","answer":"It ships with 2 auxiliary switches and 1 trip alarm switch (HQ version), plus an undervoltage release (UVR) as the auxiliary release."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0BH0","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/3VA1050-4ED36-0BH0 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}}