{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1080-3ED42-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1080-3ED42-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1080-3ED42-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1080-3ED42-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1080-3ED42-0DH0, molded case circuit breaker, 4-pole, 80 A at 40 °C, interrupting rating 75.6 kA at 240 V, line protection design, undervoltage release, 2 aux + 1 trip alarm switch.","salesMarkdown":"## Siemens 3VA1080-3ED42-0DH0 — 80 A SENTRON MCCB with Undervoltage Release Its interrupting capacity hits 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V, with a 7.5 kA floor at 500 V and 690 V — so it handles high-fault utility feeds or transformer secondaries where the available short-circuit current is substantial. Power loss maxes at 21.7 W, manageable in a standard enclosure without forced cooling. The 80 A rating holds steady from 40 °C through 50 °C (–), then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C (–). That flat thermal curve means you don't lose headroom until the ambient inside the enclosure passes 50 °C — useful for a crowded panel or a sunny roof location. A trip indicator is present, so a quick visual scan tells you which breaker opened without pulling the cover. ## Integrated undervoltage release and auxiliary switch complement That 101.6 mm (4 in) width is a standard MCCB footprint for 4-pole breakers in this class — it fits the usual DIN-rail or panel-mount cutout without surprises. The 70 mm depth (2.76 in) leaves room for rear busbar connections in a typical distribution cabinet.","metaTitle":"Siemens 3VA1080-3ED42-0DH0 SENTRON MCCB, 80A, 4-Pole, 75.6kA","metaDescription":"Siemens SENTRON 3VA1080-3ED42-0DH0 molded case circuit breaker, 80A rated at 40°C, 4-pole, 75.6kA interrupting at 240V. 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":"101.6 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"7.5 kA","at 690 V":"7.5 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":"Yes","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":"3VA10803ED420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch 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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"N","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=148142&mlfb=3VA1080-3ED42-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1080-3ED42-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Does this MCCB include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) factory-installed, plus 2 auxiliary switches and 1 trip alarm switch HQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1080-3ED42-0DH0","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/3VA1080-3ED42-0DH0 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}}