{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED36-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED36-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED36-0HH0, molded case circuit breaker, 3-pole, 50 A rated continuous current, 121 kA breaking capacity at 240 V AC, TM210 thermal-magnetic overcurrent release, shunt trip, IP40 front.","salesMarkdown":"## 3-pole 50 A MCCB with 121 kA interrupting rating Its interrupting capacity hits 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — meaning it clears high-fault currents on the secondary side of a distribution transformer without upstream coordination headaches. This is a line-protection variant (not motor-protection), so the TM210 release curve is sized for cable and busbar protection in distribution panels. The integrated auxiliary trip accessory is order code 3VA9688-0BL30. Rated continuous current holds at 50 A from 40 °C through 50 °C ambient, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. In a sealed panel with multiple breakers ganged, account for the 70 °C operating maximum — the derating curve is gentle enough that a 50 A feeder in a 60 °C enclosure still carries 47 A, but the 45 A floor at 70 °C is the hard limit. Dimensions are 76.2 mm wide (roughly 3 inches — standard 3-pole MCCB footprint on a DIN rail or panel-mount adapter), 130 mm tall, and 70 mm deep. Front protection is IP40, so the breaker is splash-safe on the operator face but not sealed for washdown. The trip indicator and voltage-trigger function are present, giving visual and electrical trip status.","metaTitle":"Siemens 3VA1050-4ED36-0HH0 SENTRON MCCB, 50 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1050-4ED36-0HH0 molded case circuit breaker, 3-pole, 50 A rated, 121 kA breaking at 240 V. Active production. Quoted to order against 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":"Yes","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":"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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","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=375396&mlfb=3VA1050-4ED36-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0HH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1050-4ED36-0HH0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for availability and current pricing — no stock count or price is published here."},{"question":"What is 3VA1050-4ED36-0HH0's breaking capacity at 415 V?","answer":"The interrupting rating is 75.6 kA at 415 V AC, with 121 kA at 240 V, 52.5 kA at 440 V, and 11.9 kA at 690 V."},{"question":"What auxiliary contacts come with this MCCB?","answer":"It ships with 2 auxiliary switches plus 1 trip alarm switch (HQ variant), providing three dry contacts for status feedback. The integrated auxiliary trip accessory is order code 3VA9688-0BL30."},{"question":"Does this breaker include a shunt trip or undervoltage release?","answer":"It includes a shunt trip (STL) design for remote tripping via a control signal. There is no undervoltage release, no communication module, and no phase-failure detection."},{"question":"What is the thermal derating for 3VA1050-4ED36-0HH0 at elevated ambient temperatures?","answer":"It holds 50 A from 40 °C to 50 °C, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C — the operating maximum ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0HH0","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/3VA1050-4ED36-0HH0 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}}