{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1180-4EF32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1180-4EF32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1180-4EF32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1180-4EF32-0CA0, molded case circuit breaker, 3-pole, 80 A (40 °C), TM240 overcurrent release, line protection, with undervoltage release, 121 kA at 240 V.","salesMarkdown":"The TM240 overcurrent release handles the thermal-magnetic trip curve — thermal for overload, magnetic for short-circuit. That fixed-release design means you're not adjusting trip settings in the field; it's a straight swap-in for a panel spec'd to the TM240 curve. Breaking capacity is the headline: 121 kA at 240 V, 75.6 kA at 415 V, and still 52.5 kA at 440 V. ## Undervoltage release and panel fit Common in safety circuits where a loss of control power must kill the load. It's a 3-pole frame in the 3VA1 size class, so it fits the standard mounting footprint for this series — no surprises pulling the old one out and sliding this in. At 55 °C it derates to 78 A, at 60 °C to 77 A, and at 70 °C to 74 A. Power loss is 21.7 W maximum at rated load. That's moderate for an 80 A MCCB — the heat stays manageable in a standard IP2X enclosure, but if you're packing a dozen of these in a small panel, add up the dissipation.","metaTitle":"Siemens 3VA1180-4EF32-0CA0 SENTRON MCCB, 80A, 3-Pole, 121kA","metaDescription":"Siemens 3VA1180-4EF32-0CA0 SENTRON molded case circuit breaker, 80A rated at 40°C, 3-pole, 121kA breaking at 240V. TM240 release, undervoltage release. Active production, available","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":"3VA11804EF320AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","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":"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":"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=511186&mlfb=3VA1180-4EF32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"75.6 kA at 415 V. That's the key number for a standard 400 V industrial distribution system — it clears most downstream faults without needing a current-limiting fuse ahead of it."},{"question":"Where can I buy 3VA1180-4EF32-0CA0 and how is it quoted?","answer":"This part is sourced through independent industrial distribution channels. Submit an RFQ for current pricing and availability — lead times and stock levels are confirmed at quote time."},{"question":"Will 3VA1180-4EF32-0CA0 drop into a panel specified around 3VA1110-5EF32-0LA0?","answer":"Both are 3-pole SENTRON 3VA1 frame MCCBs with the same mounting footprint, so physical fit is the same. The key difference is the overcurrent release: the 3VA1180-4EF32-0CA0 uses a fixed TM240 release (80 A), while the 3VA1110-5EF32-0LA0 carries a different release type and rating. Check the trip curve and amp rating match your panel's coordination study before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1180-4EF32-0CA0","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/3VA1180-4EF32-0CA0 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}}