{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED36-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED36-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED36-0JA0, molded case circuit breaker, 3-pole, 50 A rated at 40 °C, 121 kA breaking capacity at 240 VAC, line protection, with shunt trip (STL).","salesMarkdown":"Its 121 kA breaking capacity at 240 VAC handles high fault currents typical of industrial mains, while the 75.6 kA at 415 VAC and 52.5 kA at 440 VAC cover common European and North American line voltages. At 500 VAC and 690 VAC the interrupting rating holds at 11.9 kA, so this breaker can serve 690 V line-to-line loads in regions where that voltage is common, though the lower fault current ceiling means upstream coordination must be checked. Rated current holds at 50 A from 40 °C through 50 °C, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. In a sealed enclosure with multiple breakers ganged, the 70 °C ambient derating to 45 A is the figure to use for continuous load sizing. The 76.2 mm width (3 in) and 70 mm depth (2.76 in) fit standard SENTRON 3VA panel footprints; the 130 mm height (5.12 in) clears most distribution board gutters. ## Auxiliary release and monitoring The supplied basic switch is order code 3VA10504ED360AA0. No undervoltage release is fitted, and there is no trip indicator or communication module. Power loss at rated load is 14.6 W maximum, which matters for thermal budgeting in a crowded enclosure.","metaTitle":"Siemens 3VA1050-4ED36-0JA0 SENTRON MCCB, 50 A, 3-Pole, 121 k","metaDescription":"Siemens 3VA1050-4ED36-0JA0 SENTRON molded case circuit breaker, 50 A rated, 3-pole, 121 kA breaking capacity at 240 VAC. 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":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"11.9 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":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10504ED360AA0","Design Of The Auxiliary Release":"shunt trip (STL)","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"0","Switching Capacity Class Of The Circuit Breaker":"S","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","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=279734&mlfb=3VA1050-4ED36-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED36-0JA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1050-4ED36-0JA0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is the breaking capacity of 3VA1050-4ED36-0JA0 at 240 VAC?","answer":"121 kA at 240 VAC. At 415 VAC it is 75.6 kA, at 440 VAC it is 52.5 kA, and at 500 VAC and 690 VAC it is 11.9 kA."},{"question":"Does 3VA1050-4ED36-0JA0 include a shunt trip?","answer":"Yes, it is fitted with a shunt trip (STL) release for remote tripping. No undervoltage release is included."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED36-0JA0","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/3VA1050-4ED36-0JA0 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}}