{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF36-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF36-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF36-0BC0, molded case circuit breaker, 3-pole, 125 A rated continuous current, TM240 overcurrent release, 75.6 kA interrupting at 240 V.","salesMarkdown":"## Siemens 3VA1112-3EF36-0BC0 SENTRON MCCB — 125 A, 3-Pole, Line Protection The Siemens 3VA1112-3EF36-0BC0 is a SENTRON molded case circuit breaker (MCCB) rated for 125 A continuous current at 40 °C, holding that rating steady through 50 °C before a gentle thermal derating curve begins — 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C. That means in a warm panel you still get nearly full ampacity; the derate is predictable and linear. The interrupting ratings are 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V, which covers most industrial service-entrance and feeder applications. IP40 on the front, so it's fine for dry indoor panels but not washdown areas. For a critical-spares min/max, this is a fast mover in the 125 A range — keep one on the shelf if your plant runs Siemens MCCBs. ## Integration Notes Mounts in a standard DIN-rail or panel-mount footprint for 3-pole MCCBs. The 76.2 mm width (roughly 3 inches) is the standard 3-pole form factor — no surprises for panel fill factor. Undervoltage release (UVR) is built in as the auxiliary release design; the integrated auxiliary trip uses order code 3VA9608-0BB11. Latching endurance is 15,000 operations — typical for this class of MCCB in feeder duty.","metaTitle":"Siemens 3VA1112-3EF36-0BC0 SENTRON MCCB, 125 A, 3-Pole, TM24","metaDescription":"Siemens 3VA1112-3EF36-0BC0 SENTRON MCCB, 125 A rated continuous current, 3-pole, TM240 release, 75.6 kA at 240 V. Active 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","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"10.5 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":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","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":"125 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"N","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=269835&mlfb=3VA1112-3EF36-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What are the key interrupting ratings for the 3VA1112-3EF36-0BC0?","answer":"75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. That covers most industrial feeder and service-entrance applications."},{"question":"What is the continuous current rating and how does it derate with temperature?","answer":"125 A continuous from 40 °C through 50 °C. At 55 °C it's 120 A, at 60 °C it's 117.5 A, at 65 °C it's 115 A, and at 70 °C it's 112.5 A. The derating curve is gentle and linear."},{"question":"Where can I buy the 3VA1112-3EF36-0BC0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Does the 3VA1112-3EF36-0BC0 include an undervoltage release?","answer":"Yes, the undervoltage release (UVR) is built in as the auxiliary release design. The integrated auxiliary trip uses order code 3VA9608-0BB11."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0BC0","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/3VA1112-3EF36-0BC0 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}}