{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1180-4EF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1180-4EF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1180-4EF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1180-4EF46-0AA0, molded case circuit breaker, 4-pole, 80 A rated at 40 °C, 121 kA breaking capacity at 240 V, TM240 overcurrent release, line protection design, IP40 front protection.","salesMarkdown":"It carries a 121 kA breaking capacity at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V — figures that govern its fault-interruption capability in a given system voltage. The TM240 overcurrent release means it uses a thermal-magnetic trip unit, so it handles both sustained overloads (thermal) and short-circuit events (magnetic) without external control power. ## Current ratings and thermal derating Rated 80 A continuous at 40 °C, the 3VA1180-4EF46-0AA0 holds that rating through 50 °C. Above that, it derates: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. The maximum operating ambient is 70 °C; minimum is -25 °C. Maximum power loss is 19.2 W — relevant for enclosure thermal calculations when the breaker is fully loaded in a sealed panel. ## Breaking capacity by voltage Breaking capacity varies with system voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. Dimensions: 130 mm height, 101.6 mm width, 70 mm depth. IP40 on the front — suitable for indoor panel mounting where no washdown or dust ingress is expected. The 4-pole footprint matches standard Siemens SENTRON 3VA panel cutouts; verify busbar and lug spacing against the existing panel layout before ordering.","metaTitle":"Siemens 3VA1180-4EF46-0AA0 SENTRON MCCB, 80A, 4-Pole, 121kA","metaDescription":"Siemens SENTRON 3VA1180-4EF46-0AA0 molded case circuit breaker, 80A rated, 4-pole, 121kA breaking capacity at 240V. Current production. Sourced to order against RFQ.","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":"TM240","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":"Yes","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":"box terminal on both sides","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=201129&mlfb=3VA1180-4EF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1180-4EF46-0AA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1180-4EF46-0AA0 at 240 V?","answer":"121 kA at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V."},{"question":"What type of overcurrent release does this MCCB use?","answer":"TM240 thermal-magnetic trip unit — handles overloads thermally and short circuits magnetically without external control power."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1180-4EF46-0AA0","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/3VA1180-4EF46-0AA0 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}}