{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1080-4ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1080-4ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1080-4ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1080-4ED42-0AA0, molded case circuit breaker, 4-pole, 80 A, TM210 overcurrent release, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V.","salesMarkdown":"Four poles, rated 80 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release (the '210' means the thermal pickup is fixed at 80 A, magnetic trip at 10× In). Breaking capacity runs 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V — so it handles high-fault utility feeds in North American 240/480 V systems and European 400/415 V networks without cascading upstream. ## Thermal derating — the real-world current At 55 °C it drops to 78 A, at 60 °C to 77 A, at 65 °C to 75 A, and at 70 °C to 74 A. If the panel runs hot (sun-loaded roof install, adjacent drives), factor the actual ambient against this curve rather than oversizing the frame. The breaker measures 130 mm high, 101.6 mm wide, 70 mm deep — a 4-pole MCCB in a compact frame that fits standard distribution panelboards. It's a straight line-protection device: wire it in, set the torque on the terminals, and it protects the cable downstream.","metaTitle":"Siemens 3VA1080-4ED42-0AA0 SENTRON MCCB, 80 A, 4-Pole, 121 k","metaDescription":"Siemens 3VA1080-4ED42-0AA0 SENTRON molded case circuit breaker, 80 A rated, 4-pole, breaking capacity 121 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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","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":"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":"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":"https://cdn.aoctrl.com/359dfb8714bc5aac60d0477648e7a0a9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=468130&mlfb=3VA1080-4ED42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED42-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1080-4ED42-0AA0","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/3VA1080-4ED42-0AA0 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}}