{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF32-0AE0, 3-pole molded case circuit breaker, 125 A rated continuous current, TM240 thermal-magnetic overcurrent release, interrupting ratings up to 187 kA at 240 V.","salesMarkdown":"## Line protection MCCB with TM240 release The TM240 designation means the thermal trip is fixed at 125 A (the frame rating) while the magnetic short-circuit pickup is adjustable — typical for feeder protection where you need selectivity downstream. Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. Thermal derating is published across the full operating range: full 125 A rating holds from 40 °C through 50 °C, then steps down to 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C. That's a shallow curve — only 10 % loss at the top end — so it handles crowded enclosures without aggressive downsizing. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint that drops into SENTRON mounting bases and most DIN-rail adapter plates. The auxiliary contact block is populated with 4 HQ (high-amp) auxiliary switches — that's more than the typical 1NO+1NC config, so it can drive status LEDs, PLC inputs, and a shunt-trip monitor simultaneously without an add-on module. The auxiliary release slot is empty — if you need UVR or shunt trip, you add them separately. Phase-failure detection is also absent; that's a different order code within the 3VA family. The storage maximum of 80 °C is the limit for warehousing and shipping, not running — don't leave it in a closed metal box in direct sun.","metaTitle":"Siemens SENTRON 3VA1112-5EF32-0AE0 MCCB, 125A, TM240, 187kA@","metaDescription":"Siemens SENTRON 3VA1112-5EF32-0AE0 molded case circuit breaker, 125A rated continuous current, TM240 thermal-magnetic release, 187kA interrupting at 240V. Active production. Quoted","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":"4 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":"4","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=897&mlfb=3VA1112-5EF32-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0AE0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-5EF32-0AE0 and get a price?","answer":"This MCCB is available to quote against an RFQ through independent distribution. Submit a request for current pricing and availability — confirmed at quote time, not from a published list."},{"question":"What is the interrupting capacity of 3VA1112-5EF32-0AE0?","answer":"187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. The 240 V rating is exceptionally high for a 125 A frame."},{"question":"Does 3VA1112-5EF32-0AE0 include communication or ground-fault protection?","answer":"No. This variant has no communication module, no ground-fault monitoring, no undervoltage release, and no shunt trip fitted. It is a basic line-protection MCCB with a TM240 thermal-magnetic release and 4 HQ auxiliary switches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0AE0","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/3VA1112-5EF32-0AE0 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}}