{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-3ED36-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-3ED36-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-3ED36-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-3ED36-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-3ED36-0KH0, 3-pole molded case circuit breaker, 50 A rated continuous current (Iu), TM210 thermal-magnetic overcurrent release, line protection version, 70 mm depth.","salesMarkdown":"The 3VA1050-3ED36-0KH0: This MCCB delivers 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. The steep drop at 690 V is typical for a 50 A frame — the internal arc energy scales with voltage, and the 3VA1050 frame is optimized for the 400–480 V range where most industrial loads sit. For a panel fed from a 415 V supply with a transformer secondary capable of 50 kA fault current, this breaker lands comfortably inside its interrupting envelope. ## Auxiliary contacts and shunt trip fitted The auxiliary contact block is factory-installed — no separate ordering or field fitting needed. The shunt trip coil part number is 3VA9688-0BL33, documented as the integrated auxiliary trip assembly. This makes the breaker ready for remote emergency-stop or PLC-based trip circuits out of the box. Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits Siemens 3VA1050 switchboard mounting or individual DIN-rail adapters. Current derating begins at 55 °C: 48 A at 55 °C, down to 45 A at 70 °C.","metaTitle":"Siemens 3VA1050-3ED36-0KH0 SENTRON MCCB, 50 A, 3-Pole, TM210","metaDescription":"Siemens 3VA1050-3ED36-0KH0 SENTRON molded case circuit breaker, 50 A rated at 40°C, 3-pole, TM210 thermal-magnetic release, 75.6 kA at 240 V. Active production, sourced 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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"7.5 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":"3VA9688-0BL33","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"N","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=154644&mlfb=3VA1050-3ED36-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-3ED36-0KH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1050-3ED36-0KH0 at 415 V?","answer":"At 415 V the interrupting rating is 52.5 kA. At 240 V it reaches 75.6 kA, and at 440 V it drops to 32 kA. At 690 V the rating is 7.5 kA."},{"question":"What auxiliary contacts come with this MCCB?","answer":"It includes 2 auxiliary switches and 1 trip alarm switch (HQ configuration), plus a factory-integrated shunt trip release (STL) with the auxiliary trip assembly part number 3VA9688-0BL33."},{"question":"Where can I buy 3VA1050-3ED36-0KH0 and how is it quoted?","answer":"The part is sourced and quoted to order through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What is the physical size of this MCCB?","answer":"Height is 130 mm, width is 76.2 mm, and depth is 70 mm — a standard 3-pole MCCB footprint for panel mounting."},{"question":"Does this breaker require a separate shunt trip order?","answer":"No — the shunt trip release (STL) is integrated from the factory. The auxiliary trip assembly is already fitted; no separate purchase or field installation is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-3ED36-0KH0","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/3VA1050-3ED36-0KH0 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}}