{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF32-0KH0, molded case circuit breaker, 3-pole, 125 A rated continuous current Iu, TM240 thermal-magnetic overcurrent release, 75.6 kA interrupting at 240 V, shunt trip, 2 aux + 1 trip alarm, IP40 front, 70 mm depth.","salesMarkdown":"The Siemens SENTRON 3VA1112-3EF32-0KH0 is a 3-pole molded case circuit breaker rated for 125 A continuous current at 40 °C, with a TM240 thermal-magnetic overcurrent release. That 125 A holds flat through 50 °C — only starts to derate at 55 °C (120 A) and drops to 112.5 A by 70 °C, so it's comfortable in a warm panel without oversizing. Interrupting 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 — enough for most distribution and motor branch circuits where fault current isn't extreme. The shunt trip (STL) release is built in, and the auxiliary contact block gives you 2 aux switches plus a separate trip alarm (HQ). The 3VA1112-3EF32-0KH0 measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard SENTRON 3VA footprint that drops into existing MCCB panel cutouts and DIN-rail adapters. The IP40 front rating means it's fine for indoor switchgear enclosures; no washdown rating here. ## What the TM240 release and ratings mean for selection The TM240 designation means the thermal-magnetic trip unit is fixed at 125 A — no interchangeable rating plug. That's a line-protection breaker, not a motor-protection one (no phase-failure detection, no ground-fault module). The 800 V rated insulation voltage (Ui) covers 480/277 V and 600 V systems with headroom; the interrupting ratings at 415 V and 690 V tell you it can handle industrial supply voltages. No communication function, so if you need remote monitoring, you'd add an external power meter or IO module upstream.","metaTitle":"Siemens 3VA1112-3EF32-0KH0 SENTRON MCCB, 125 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1112-3EF32-0KH0 molded case circuit breaker, 125 A continuous, 3-pole, 75.6 kA at 240 V. TM240 release, shunt trip, IP40 front. Current lifecycle. Sourced to ord","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":"Yes","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 + 1 trip alarm switch 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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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":"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=375088&mlfb=3VA1112-3EF32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1112-3EF32-0KH0?","answer":"We source this to order. Submit an RFQ and we'll confirm current pricing and availability at quote time."},{"question":"What is 3VA1112-3EF32-0KH0's listed depth?","answer":"The depth is 70 mm, with a width of 76.2 mm and height of 130 mm."},{"question":"What interrupting capacity does this MCCB have at 240 V and 415 V?","answer":"75.6 kA at 240 V and 52.5 kA at 415 V, with 32 kA at 440 V and 10.5 kA at 690 V."},{"question":"Does 3VA1112-3EF32-0KH0 include a shunt trip or undervoltage release?","answer":"It includes a shunt trip (STL) release. It does not include an undervoltage release."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF32-0KH0","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/3VA1112-3EF32-0KH0 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}}