{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1080-4ED32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1080-4ED32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1080-4ED32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1080-4ED32-0DC0, molded case circuit breaker, 3-pole, 80 A (40 °C), 121 kA at 240 V AC, line protection, with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"It carries a 121 kA interrupting rating at 240 V AC — enough to handle high-fault utility feeds without cascading upstream — and still delivers 75.6 kA at 415 V AC, 52.5 kA at 440 V AC, and 11.9 kA at 500 or 690 V AC. ## Thermal derating and continuous current Above that it steps down: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. If your panel ambient runs 60 °C, you lose only 3 A — about 4% — which is better than many MCCBs in this frame size. ## Built-in auxiliary and undervoltage release It also includes two HQ auxiliary switches for remote status indication (open/closed/tripped). No ground-fault monitoring module is included; this is a straight line-protection breaker. The 76.2 mm width (3 inches) is standard for a 3-pole MCCB in this frame class — it fits the same mounting footprint as other SENTRON 3VA breakers, so swapping between ratings in the same panel is a direct mechanical exchange without drilling new holes or moving the DIN rail.","metaTitle":"Siemens 3VA1080-4ED32-0DC0 SENTRON MCCB, 80A, 3-Pole, 121kA","metaDescription":"Siemens 3VA1080-4ED32-0DC0 SENTRON molded case circuit breaker, 80A rated at 40°C, 3-pole, 121kA breaking capacity at 240V AC. 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":"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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","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":"3VA10804ED320AA0","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","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":"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=538073&mlfb=3VA1080-4ED32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1080-4ED32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1080-4ED32-0DC0 at 415 V?","answer":"It delivers 75.6 kA at 415 V AC, which covers most industrial low-voltage distribution fault levels."},{"question":"Will 3VA1080-4ED32-0DC0 drop into a panel specified for 3VA1110-5ED36-0AC0?","answer":"Both are 3-pole SENTRON MCCBs in the same frame family, so the 76.2 mm width and 130 mm height are identical — mechanical fit is the same. The key difference is the current rating: this unit is 80 A versus the higher-rated 3VA1110 variants. Verify the load current before swapping."},{"question":"Where can I buy 3VA1080-4ED32-0DC0 and how is it quoted?","answer":"This part is sourced through independent industrial-automation distribution. Submit an RFQ for a current price and availability quote — stock and lead time are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1080-4ED32-0DC0","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/3VA1080-4ED32-0DC0 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}}