{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-2ED42-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-2ED42-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-2ED42-0DC0, molded case circuit breaker, line protection, 4-pole, 50 A rated continuous current, 52.5 kA at 240 V, TM210 overcurrent release, undervoltage release, IP40 front.","salesMarkdown":"## What this 4-pole MCCB carries — and where the ratings matter The Siemens SENTRON 3VA1050-2ED42-0DC0 is a 4-pole molded case circuit breaker (MCCB) rated for 50 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release and an integrated undervoltage release (UVR). Interrupting capacity scales with system voltage: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — so the same frame covers 480Y/277 V panels and 690 V motor circuits, but the available fault current at the board must stay under the curve for the tap voltage. Thermal derating is flat through 50 °C (still 50 A), then drops to 48 A at 55 °C and 45 A at 70 °C — useful when the breaker sits in a crowded enclosure near other heat sources; the 70 °C operating max matches the upper ambient limit. Dimensions are 70 mm deep, 101.6 mm wide, and 130 mm high — the 101.6 mm width is the standard 4-pole MCCB footprint for this SENTRON frame size, so it drops into existing 3VA panel layouts without re-drilling the mounting plate. Latching endurance is rated at 15 000 operations — typical for a 50 A frame in panelboard duty; not a high-cycle motor-switching breaker, but fine for infrequent manual disconnect and fault clearing.","metaTitle":"Siemens 3VA1050-2ED42-0DC0 SENTRON MCCB, 50 A, 4-Pole, 52.5","metaDescription":"Siemens SENTRON 3VA1050-2ED42-0DC0 molded case circuit breaker, 50 A rated continuous current, 4-pole, 52.5 kA 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":"101.6 mm","Height":"130 mm","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 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":"No","Number of poles":"4","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 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":"3VA9608-0BB25","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","Design of the N-conductor protection":"Without","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":"600 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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"B","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=417946&mlfb=3VA1050-2ED42-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0DC0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1050-2ED42-0DC0 drop into a panel specified around 3VA1010-2ED42-0AE0 without rewiring?","answer":"Both share the same 101.6 mm width and 70 mm depth, so mechanical fit is identical — but the 3VA1050 carries a 50 A frame vs the 3VA1010's lower rating, so verify the load-side conductor sizing and upstream coordination before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0DC0","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/3VA1050-2ED42-0DC0 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}}