{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED36-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED36-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED36-0CH0, 3-pole molded case circuit breaker, 50 A rated continuous current (Iu), 121 kA breaking capacity at 240 V, TM210 thermal-magnetic release, with undervoltage release and 2 aux + 1 alarm switch.","salesMarkdown":"The Siemens SENTRON 3VA1050-4ED36-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 50 A up to 40 °C and derating to 45 A at 70 °C. The 121 kA breaking capacity at 240 V is the headline figure for high-fault panels; at 415 V it still holds 75.6 kA, and at 690 V it drops to 11.9 kA — so the SCCR you need for your transformer secondary or bus tie determines the voltage you spec against. The 50 A frame is thermally rated — it holds 50 A continuously at 40, 45, and 50 °C ambient, then steps down to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. ## Integrated undervoltage release and auxiliary contacts The latching endurance is rated at 15 000 operations — mechanical life for the mechanism, not the electrical breaking count.","metaTitle":"Siemens 3VA1050-4ED36-0CH0 SENTRON MCCB, 50 A, 121 kA at 240","metaDescription":"Siemens 3VA1050-4ED36-0CH0 SENTRON molded case circuit breaker, 3-pole, 50 A rated, 121 kA breaking at 240 V. TM210 release, undervoltage trip. Current lifecycle. Quoted to order a","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":"3VA9608-0BB24","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=78536&mlfb=3VA1050-4ED36-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0CH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3VA1050-4ED36-0CH0?","answer":"Submit an RFQ through this listing. We source through independent distribution and confirm current pricing and availability at quote time — no stock figures or price lists are published here because the market moves daily. A firm commercial offer with lead time is provided on request."},{"question":"What are the physical dimensions of 3VA1050-4ED36-0CH0?","answer":"The MCCB measures 70 mm depth, 76.2 mm width, and 130 mm height. The 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint for DIN-rail or panel-mount installation."},{"question":"Does 3VA1050-4ED36-0CH0 include compliance documentation?","answer":"As a Siemens SENTRON product, it carries CE marking for the European market and is designed to IEC 60947-2. UL and CSA listings are typical for the 3VA family, but specific certification marks for this exact order code should be verified against the manufacturer's declaration or the product label. RoHS and REACH compliance documentation is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0CH0","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/3VA1050-4ED36-0CH0 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}}