{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1180-4EF32-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1180-4EF32-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1180-4EF32-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF32-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1180-4EF32-0KC0, molded case circuit breaker, 3-pole, line protection, 80 A, TM240 thermal-magnetic release, 121 kA at 240 V, 2 HQ auxiliary switches, IP40 front.","salesMarkdown":"## 80 A MCCB with 121 kA interrupting capacity — selectivity headroom for distribution At 415 V it still holds 75.6 kA, and at 690 V it's 11.9 kA. That kind of headroom means this breaker can sit close to a large transformer or generator bus and still coordinate with downstream feeders. Three poles, line protection version — no ground-fault module, no communication board, no undervoltage release. The only auxiliary is the shunt trip (STL) plus two HQ auxiliary switches (3VA9688-0BL33 integrated). It's a straightforward distribution breaker sized for a 80 A feeder in a panel that needs high fault-interrupt capability. The TM240 thermal-magnetic trip unit gives fixed thermal and magnetic settings — no electronic adjustability, which simplifies replacement but locks the curve. Above that it drops: 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, 72 A at 70 °C. If your enclosure runs hot (sunlit rooftop, next to a drive cabinet), size the load at the 70 °C figure. The breaker itself is 130 mm tall, 76.2 mm wide, 70 mm deep — standard SENTRON 3VA footprint. For a distribution breaker that cycles a few times a year, it's fine. For frequent switching (like a welding line or a compressor that cycles daily), consider a contactor upstream and leave the MCCB as backup protection only.","metaTitle":"Siemens 3VA1180-4EF32-0KC0 SENTRON MCCB, 80 A, 121 kA at 240","metaDescription":"Siemens 3VA1180-4EF32-0KC0 SENTRON molded case circuit breaker, 80 A rated current, 121 kA breaking capacity at 240 V. 3-pole, line protection, TM240 release, 2 HQ aux switches. Av","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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"76.8 A","at 60 °C":"75.2 A","at 65 °C":"73.6 A","at 70 °C":"72 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"80 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"80 A","Adjustable response value current / li max.":"800 A","Adjustable response value current / li min.":"400 A","Adjustable response value current / lr min.":"56 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=199788&mlfb=3VA1180-4EF32-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF32-0KC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1180-4EF32-0KC0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send the order code and quantity for a firm quote."},{"question":"What is the breaking capacity of 3VA1180-4EF32-0KC0 at different voltages?","answer":"121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. That's the maximum fault current the breaker can safely interrupt at each voltage level."},{"question":"Does 3VA1180-4EF32-0KC0 include auxiliary contacts or a shunt trip?","answer":"It comes with two HQ auxiliary switches integrated, plus a shunt trip (STL) design. The integrated auxiliary trip is order code 3VA9688-0BL33. No undervoltage release, no ground-fault module, no communication function."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1180-4EF32-0KC0","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/3VA1180-4EF32-0KC0 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}}