{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1080-4ED42-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1080-4ED42-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1080-4ED42-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED42-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1080-4ED42-0DC0, Molded case circuit breaker, Line protection, 4-pole, 80 A at 40 °C, 121 kA at 240 V, with undervoltage release.","salesMarkdown":"The 3VA1080-4ED42-0DC0: The 80 A rating holds across the 40–50 °C band, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C — so in a warm panel you lose about 6 A by the time ambient hits 70 °C. The 121 kA at 240 V is the headline breaking figure; at 415 V it still clears 75.6 kA, at 440 V it manages 52.5 kA, and at 500 V or 690 V it holds at 11.9 kA. ## Built-in undervoltage release and auxiliary switches No communication function, ground-fault monitoring, or trip indicator is included on this variant. The basic switch supplied is order code 3VA10804ED420AA0. Dimensions are 130 mm height, 101.6 mm width, and 70 mm depth. The 101.6 mm width (4 inches) is standard for a 4-pole MCCB in the SENTRON 3VA frame, so it drops into existing busbar or lug layouts without re-drilling.","metaTitle":"Siemens 3VA1080-4ED42-0DC0 SENTRON MCCB, 80 A, 4-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1080-4ED42-0DC0 molded case circuit breaker, 80 A, 4-pole, 121 kA breaking capacity at 240 VAC. Active 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":"101.6 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":"80 A","at 45 °C":"80 A","at 50 °C":"80 A","at 55 °C":"78 A","at 60 °C":"77 A","at 65 °C":"75 A","at 70 °C":"74 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":"21.7 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10804ED420AA0","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":"3VA9608-0BB25","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":"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=127081&mlfb=3VA1080-4ED42-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED42-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1080-4ED42-0DC0 at 240 V?","answer":"The interrupting capacity is 121 kA at 240 VAC. At 415 V it is 75.6 kA, at 440 V it is 52.5 kA, and at 500 V or 690 V it holds at 11.9 kA."},{"question":"How do I get pricing and availability for 3VA1080-4ED42-0DC0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at the time of quote."},{"question":"What are the physical dimensions of this MCCB?","answer":"Height is 130 mm, width is 101.6 mm, and depth is 70 mm. The 70 mm depth is the key dimension for enclosure clearance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1080-4ED42-0DC0","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/3VA1080-4ED42-0DC0 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}}