{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-3ED32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-3ED32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-3ED32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-3ED32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-3ED32-0AH0, Molded case circuit breaker, 3-pole, 50 A rated continuous current, TM210 overcurrent release, 75.6 kA at 240 V, 2 auxiliary switches + 1 trip alarm switch HQ.","salesMarkdown":"## What this MCCB does on the line The Siemens 3VA1050-3ED32-0AH0 is a 3-pole SENTRON molded case circuit breaker rated for 50 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release. The interrupting capacity hits 75.6 kA at 240 V and still delivers 52.5 kA at 415 V, so it can handle high-fault utility feeds without cascading upstream. The 2 auxiliary switches plus a dedicated trip alarm switch (HQ) let the PLC or SCADA know exactly when it's tripped and why — no guessing from a remote panel. ## Thermal derating — what 50 A actually means at panel ambient At 55 °C it derates to 48 A, at 60 °C to 47 A, and at 70 °C to 45 A. The TM210 release has an adjustable time delay (tr max 1 s), so it can be tuned to ride through inrush without nuisance tripping. The 3VA1050-3ED32-0AH0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard MCCB footprint that drops into most SENTRON distribution blocks and panelboards. It's a fixed (non-plug-in) breaker, so install it with busbar or cable lugs.","metaTitle":"Siemens 3VA1050-3ED32-0AH0 SENTRON MCCB, 50 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1050-3ED32-0AH0 molded case circuit breaker, 50 A rated continuous current, 3-pole, 75.6 kA at 240 V. TM210 release, 2 aux + 1 alarm switch. Active production, 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":"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":"No","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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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":"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=391327&mlfb=3VA1050-3ED32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-3ED32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1050-3ED32-0AH0 and how do I get a price?","answer":"This part is available to order through our distribution. Submit an RFQ and we'll confirm current pricing and availability at quote time — no stock count or price is published here."},{"question":"Will 3VA1050-3ED32-0AH0 drop into a panel specified around 3VA1010-2ED42-0AE0 without rewiring?","answer":"The 3VA1050-3ED32-0AH0 has the same 3-pole, fixed-mount form factor as the 3VA1010 series, with identical height (130 mm), width (76.2 mm), and depth (70 mm). The physical footprint is the same, so it should fit the same busbar or cable lugs. The key difference is the current rating and release — this one is 50 A with a TM210 release, while the 3VA1010 variants are lower-rated. Check the load current before swapping."},{"question":"What is the interrupting capacity at 415 V for this MCCB?","answer":"At 415 V, the 3VA1050-3ED32-0AH0 delivers 52.5 kA interrupting capacity. At 240 V it's 75.6 kA, at 440 V it's 32 kA, and at 690 V it's 7.5 kA."},{"question":"What auxiliary contacts come with this breaker?","answer":"It includes 2 auxiliary switches plus 1 trip alarm switch (HQ configuration). That gives you two form-C contacts for status feedback and a dedicated alarm contact that changes state only on a trip event, not on manual switching."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-3ED32-0AH0","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/3VA1050-3ED32-0AH0 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}}