{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-6EF32-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-6EF32-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-6EF32-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6EF32-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-6EF32-0HC0, molded case circuit breaker, 3-pole, 125 A, TM240 overcurrent release, line protection, 220 kA interrupting at 240 V.","salesMarkdown":"It carries a rated insulation voltage Ui of 800 V and delivers interrupting ratings of 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V — so it handles high-fault-current scenarios typical in industrial distribution panels without needing an upstream current-limiting fuse. ## Thermal derating curve — the real ampacity The 125 A rating holds at 45 °C and 50 °C, then derates: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. ## Auxiliary contacts and release options This variant comes with 2 auxiliary switches (HQ type) for status feedback — useful for PLC inputs or remote indication. The voltage trigger is present, meaning it can accept a shunt trip or similar accessory.","metaTitle":"Siemens 3VA1112-6EF32-0HC0 SENTRON MCCB, 3-pole, 125 A, TM24","metaDescription":"Siemens SENTRON 3VA1112-6EF32-0HC0 molded case circuit breaker, 3-pole, 125 A continuous, TM240 release, 220 kA at 240 V. Current lifecycle stage. Quoted 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":"220 kA","at 415 V":"154 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"122 A","at 60 °C":"120 A","at 65 °C":"117 A","at 70 °C":"114 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","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","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"28.1 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA11126EF320AA0","Courant permanent assigné Iu":"125 A","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 IEC 81346-2":"Q","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL30","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 / lg min.":"1","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","Max. rated operational current of the frame size":"160 A","Mechanical Service Life (Switching Cycles) / Typical":"20 000","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 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"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=2788&mlfb=3VA1112-6EF32-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6EF32-0HC0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1112-6EF32-0HC0 and how is it quoted for volume purchases?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What are the interrupting ratings of 3VA1112-6EF32-0HC0 at different voltages?","answer":"220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That covers most industrial distribution voltages up to 690 V."},{"question":"Will 3VA1112-6EF32-0HC0 drop into a panel that was specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both are 3-pole SENTRON MCCBs on the same 76.2 mm (3-inch) width footprint, so the panel cutout and bus-bar spacing should match. The key difference is the overcurrent release and interrupting rating — verify the trip curve and available fault current before swapping. No rewiring of the main bus is needed, but the auxiliary contact wiring may differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-6EF32-0HC0","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/3VA1112-6EF32-0HC0 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}}