{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4EF32-0HH0, molded case circuit breaker, 3-pole, 125 A, TM240 release, 121 kA at 240 V, line protection.","salesMarkdown":"It's a 3-pole line-protection device built for distribution panels where high interrupting capacity is the deciding spec — 121 kA at 240 V, 75.6 kA at 415 V, and still 11.9 kA at 690 V. That kind of SCCR headroom means it can sit upstream of a fault-heavy feeder without cascading, which is what you want when coordinating a main breaker with downstream branch devices. The TM240 release is a fixed thermal-magnetic trip — no interchangeable rating plug, so the 125 A frame is what you get. That's fine for a dedicated feeder or a fixed-load panel where the ampacity isn't changing. At 70 mm deep, 76.2 mm wide, and 130 mm tall, this MCCB fits the standard SENTRON 3VA footprint. The 76.2 mm width is a 3-module (3 x 25.4 mm) DIN-rail pitch — it snaps onto the rail without adapters.","metaTitle":"Siemens 3VA1112-4EF32-0HH0 SENTRON MCCB, 125 A, 3-Pole, 121","metaDescription":"Siemens 3VA1112-4EF32-0HH0 SENTRON molded case circuit breaker, 125 A rated, 3-pole, 121 kA at 240 V. Line protection with TM240 release. 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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 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":"3VA9688-0BL30","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":"S","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=264354&mlfb=3VA1112-4EF32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1112-4EF32-0HH0's interrupting capacity at 415 V?","answer":"It's rated at 75.6 kA at 415 V. That's the figure you'd use for most European 400 V distribution panels."},{"question":"Where can I buy 3VA1112-4EF32-0HH0?","answer":"This MCCB is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"Does 3VA1112-4EF32-0HH0 include auxiliary contacts?","answer":"Yes, it comes with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), wired and ready for status feedback."},{"question":"What is the rated continuous current of 3VA1112-4EF32-0HH0 at 40 °C?","answer":"125 A continuous at 40 °C. The unit derates to 112.5 A at 70 °C ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF32-0HH0","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/3VA1112-4EF32-0HH0 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}}