{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF32-0AC0, molded case circuit breaker, 3-pole, 125 A, TM240 release, 187 kA at 240 V, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1112-5EF32-0AC0 is a 3-pole molded case circuit breaker rated for 125 A continuous current and delivering 187 kA interrupting capacity at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V. The TM240 thermal-magnetic release provides fixed magnetic pickup and adjustable long-time delay (tr max. 1 s), letting you coordinate with downstream feeders. The 125 A rating holds flat from 40 °C to 50 °C, then derates to 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C. In a sealed enclosure with multiple breakers ganged, that derating curve is what governs the real-world ampacity — not the nameplate 125 A. The 70 mm depth and 76.2 mm width fit a standard 3-pole MCCB footprint on a DIN rail or panel-mount base, with IP40 protection on the front face suitable for general-purpose indoor switchgear.","metaTitle":"Siemens 3VA1112-5EF32-0AC0 SENTRON MCCB, 125 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA1112-5EF32-0AC0 molded case circuit breaker, 125 A rated current, 187 kA interrupting at 240 V. 3-pole, TM240 release, IP40 front. 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":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 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":"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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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":"M","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=491836&mlfb=3VA1112-5EF32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1112-5EF32-0AC0 at 415 V?","answer":"It is rated 121 kA at 415 V, which covers most industrial distribution panels fed from a 500 kVA to 1000 kVA transformer."},{"question":"Where can I buy 3VA1112-5EF32-0AC0 and how is it quoted?","answer":"This part is 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 commercial offer."},{"question":"Will 3VA1112-5EF32-0AC0 drop into a panel specified around 3VA1010-2ED32-0JA0 without rewiring?","answer":"The 3VA1112-5EF32-0AC0 shares the same 3-pole SENTRON platform footprint (70 mm depth, 76.2 mm width) as the 3VA1010-2ED32-0JA0, so it mounts in the same panel cutout and bus-bar spacing. The terminal layout and lug sizes are identical — no rewiring needed for the mechanical fit. However, verify that the 125 A continuous rating and 187 kA interrupting capacity match your fault study; the 3VA1010 variant may have a lower ampacity or interrupting rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0AC0","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/3VA1112-5EF32-0AC0 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}}