{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1080-4ED42-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1080-4ED42-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1080-4ED42-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED42-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1080-4ED42-0AC0, molded case circuit breaker, 4-pole, 80 A, TM210 thermal-magnetic trip, 121 kA at 240 V, 70 mm depth.","salesMarkdown":"## What this MCCB actually does on the line The Siemens SENTRON 3VA1080-4ED42-0AC0 is a 4-pole molded case circuit breaker rated for 80 A continuous at 40 °C, with a TM210 thermal-magnetic trip unit designed for line protection — meaning it handles overloads and short-circuits in distribution panels, not motor starting. At 415 V it still breaks 75.6 kA, and at 690 V it holds 11.9 kA, so it's sized for industrial 400 V class systems where a transformer-fed bus can push serious fault energy. Above that it derates linearly: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. That's not a showstopper, but it means the 80 A frame is really a 74 A breaker at the upper end of its rated operating range. The 3VA1080-4ED42-0AC0 measures 101.6 mm wide, 130 mm tall, and 70 mm deep — a 4-pole frame that fits standard DIN-rail or screw-mount panel layouts. It ships with two HQ auxiliary switches built in, so you get status feedback without adding a separate accessory block.","metaTitle":"Siemens SENTRON 3VA1080-4ED42-0AC0 MCCB, 80A, 4-Pole, 121kA","metaDescription":"Siemens SENTRON 3VA1080-4ED42-0AC0 molded case circuit breaker, 80A continuous, 4-pole, TM210 trip unit. 121kA SCCR at 240V. Active production. Available 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":"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":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"19.2 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","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","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=250094&mlfb=3VA1080-4ED42-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED42-0AC0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this brand provide for 3VA1080-4ED42-0AC0?","answer":"Siemens SENTRON MCCBs typically carry UL, CSA, and IEC certifications, plus RoHS and REACH compliance documentation. Specific certification markings for this exact order code should be confirmed from the product label or Siemens documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1080-4ED42-0AC0","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/3VA1080-4ED42-0AC0 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}}