{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF36-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF36-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF36-0KC0, molded case circuit breaker, 3-pole, 125 A rated continuous current Iu, TM240 overcurrent release, line protection version, 75.6 kA breaking capacity at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA1112-3EF36-0KC0 is a 3-pole molded case circuit breaker (MCCB) rated for 125 A continuous current at 40 °C, with a TM240 thermal-magnetic overcurrent release — meaning the thermal pickup is fixed at 125 A and the magnetic short-circuit trip is calibrated for the TM240 curve. It is the line-protection version, so it is intended for feeder and main breaker duty in distribution panels, not for direct motor starting. Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V (–). ## Auxiliaries and releases — what is on board If you need remote trip via undervoltage or a ground-fault alarm, those are separate accessory slots on the 3VA platform — this base unit leaves them open. The trip indicator is not fitted — no mechanical flag on the front to show a trip event. For troubleshooting, you would rely on the shunt trip or the auxiliary contact state. At 55 °C it drops to 120 A, at 60 °C to 117.5 A, at 65 °C to 115 A, and at 70 °C to 112.5 A (–). The 3VA1112-3EF36-0KC0 measures 130 mm high, 76.2 mm wide, and 70 mm deep (–). If you are swapping out an older 3VA1112-5EF32-0CA0, the width and depth are identical; the difference is in the release and breaking capacity, not the mounting.","metaTitle":"SENTRON 3VA1112-3EF36-0KC0 MCCB, 125 A, 75.6 kA at 240 V","metaDescription":"Siemens SENTRON 3VA1112-3EF36-0KC0 molded case circuit breaker, 125 A rated, 75.6 kA breaking at 240 V. Line protection version with TM240 release. Sourced to order.","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":"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":"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":"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=219669&mlfb=3VA1112-3EF36-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1112-3EF36-0KC0 at 415 V?","answer":"52.5 kA at 415 V. At 240 V it is 75.6 kA, at 440 V it is 32 kA, and at 690 V it is 10.5 kA."},{"question":"Does 3VA1112-3EF36-0KC0 include a shunt trip?","answer":"Yes, it is fitted with a shunt trip (STL) auxiliary release, part number 3VA9688-0BL33, plus two auxiliary switches HQ."},{"question":"Will 3VA1112-3EF36-0KC0 drop into a panel specified for 3VA1112-5EF32-0CA0?","answer":"Yes, the mounting footprint (width 76.2 mm, depth 70 mm) is identical. The difference is in the overcurrent release and breaking capacity — the -5EF32 variant uses a different release curve. Check the release coordination for your specific load."},{"question":"Where can I buy 3VA1112-3EF36-0KC0 and how is it quoted?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — stock and lead time are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0KC0","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/3VA1112-3EF36-0KC0 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}}