{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF36-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF36-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4EF36-0KA0, molded case circuit breaker, 3-pole, 125 A rated continuous current, 121 kA breaking capacity at 240 V, line protection version with TM240 overcurrent release.","salesMarkdown":"It carries a 121 kA breaking capacity at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V — figures that govern its fault-clearing capability in low-voltage distribution panels. The TM240 overcurrent release provides thermal-magnetic protection for line (feeder) duty, not motor or generator protection. ## Ratings and thermal derating At 55 °C it derates to 120 A, at 60 °C to 117.5 A, at 65 °C to 115 A, and at 70 °C to 112.5 A. ## Integration notes Width is 76.2 mm (roughly 3 inches), height 130 mm, depth 70 mm — fits the standard 3-pole MCCB footprint in most low-voltage switchboards.","metaTitle":"Siemens 3VA1112-4EF36-0KA0 SENTRON MCCB, 125 A, 3-Pole, 121","metaDescription":"Siemens SENTRON 3VA1112-4EF36-0KA0 molded case circuit breaker, 125 A continuous, 3-pole, 121 kA at 240 V. 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":"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":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"120 A","at 60 °C":"117.5 A","at 65 °C":"115 A","at 70 °C":"112.5 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":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"125 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.":"125 A","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 A","Adjustable response value current / lr min.":"88 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","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":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=465079&mlfb=3VA1112-4EF36-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0KA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-4EF36-0KA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of 3VA1112-4EF36-0KA0?","answer":"Rated continuous current Iu is 125 A, rated insulation voltage Ui is 800 V, breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V. It is a 3-pole line-protection MCCB with a TM240 thermal-magnetic release."},{"question":"What is the depth of 3VA1112-4EF36-0KA0?","answer":"The depth is 70 mm."},{"question":"What is the width of 3VA1112-4EF36-0KA0?","answer":"The width is 76.2 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0KA0","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/3VA1112-4EF36-0KA0 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}}