{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-3ED42-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-3ED42-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-3ED42-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-3ED42-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-3ED42-0CC0, molded case circuit breaker, 4-pole, 50 A (40 °C), breaking capacity 75.6 kA at 240 V AC, line protection, with undervoltage release and 2 auxiliary switches.","salesMarkdown":"Four poles, rated 50 A at 40 °C, with a breaking capacity of 75.6 kA at 240 V AC — that's the short-circuit current it can safely interrupt without welding contacts or venting plasma into the enclosure. At 415 V it still holds 52.5 kA, and at 690 V it's 7.5 kA, so the voltage you're protecting determines the fault-clearing margin. The UVR means the breaker drops if control voltage falls below the dropout threshold, which is common in safety circuits or emergency-stop chains where a loss of control power should open the main feed. ## Ratings that matter for panel fit Dimensions: 130 mm tall, 101.6 mm wide, 70 mm deep. That's a 4-pole MCCB that fits a standard 100 mm-wide DIN-rail slot — the width is the critical number for multi-breaker rows. Thermal derating is published: it holds 50 A from 40 °C up to 50 °C, then drops to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.","metaTitle":"Siemens 3VA1050-3ED42-0CC0 SENTRON MCCB, 50 A, 75.6 kA at 24","metaDescription":"Siemens 3VA1050-3ED42-0CC0 SENTRON molded case circuit breaker, 4-pole, 50 A rated at 40 °C, 75.6 kA breaking at 240 V. Active production. Quoted 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":"101.6 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"7.5 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":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"17.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10503ED420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=268628&mlfb=3VA1050-3ED42-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-3ED42-0CC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1050-3ED42-0CC0 at different voltages?","answer":"At 240 V it's 75.6 kA, at 415 V it's 52.5 kA, at 440 V it's 32 kA, at 500 V it's 7.5 kA, and at 690 V it's also 7.5 kA."},{"question":"Does 3VA1050-3ED42-0CC0 include an undervoltage release?","answer":"Yes, it comes with an undervoltage release (UVR) and two auxiliary switches HQ built in."},{"question":"Where can I buy 3VA1050-3ED42-0CC0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-3ED42-0CC0","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/3VA1050-3ED42-0CC0 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}}