{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-4ED32-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-4ED32-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-4ED32-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED32-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-4ED32-0JC0, molded case circuit breaker, 3-pole, 50 A at 40 °C, interrupting rating 121 kA at 240 V, 70 mm depth, 76.2 mm width, 130 mm height.","salesMarkdown":"The Siemens 3VA1050-4ED32-0JC0 is a SENTRON molded case circuit breaker, 3-pole, rated 50 A at 40 °C with an interrupting capacity of 121 kA at 240 V. The 50 A continuous rating holds steady up to 50 °C, then derates to 49 A at 55 °C and 45 A at 70 °C — so in a warm enclosure you lose 5 A off the top end. ## Interrupting ratings and selectivity The 3VA1050-4ED32-0JC0 carries interrupting ratings across common system voltages: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. The 3VA1050-4ED32-0JC0 measures 70 mm deep, 76.2 mm wide, and 130 mm high. That 76.2 mm width is a 3-pole frame size — it occupies three 25.4 mm module positions on a DIN rail. The 70 mm depth lets it fit shallow enclosures where a deeper MCCB would hit the door or backplane. ## Auxiliary and shunt trip options Max power loss is 14.6 W, so heat dissipation in the enclosure is manageable. ## Environmental range The -25 °C lower limit is fine for most climates — no special cold-weather derating needed down to that point.","metaTitle":"Siemens 3VA1050-4ED32-0JC0 SENTRON MCCB, 50 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1050-4ED32-0JC0 molded case circuit breaker, 50 A at 40 °C, 3-pole, 121 kA interrupting at 240 V. Current production. Sourced 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":"3VA10504ED320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"S","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=277064&mlfb=3VA1050-4ED32-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-4ED32-0JC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1050-4ED32-0JC0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting rating of the 3VA1050-4ED32-0JC0 at 415 V?","answer":"75.6 kA at 415 V, which is the typical rating for a 400 V three-phase service."},{"question":"Does the 3VA1050-4ED32-0JC0 include a shunt trip?","answer":"Yes, it includes a shunt trip release (STL) and 2 auxiliary switches (HQ type) for remote tripping and status feedback."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-4ED32-0JC0","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/3VA1050-4ED32-0JC0 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}}