{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA1112-4EF32-0DA0, molded case circuit breaker (MCCB), 3-pole, 125 A, TM240 thermal-magnetic release, 121 kA at 240 V AC, undervoltage release, 70 mm depth × 76.2 mm width × 130 mm height.","salesMarkdown":"The SENTRON 3VA1112-4EF32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 125 A from 40 °C through 50 °C, derating to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. The interrupting capacity reaches 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V — figures that define the fault-current headroom for panel coordination studies. ## SCCR and selectivity With 121 kA at 240 V and 75.6 kA at 415 V, this MCCB sits above typical distribution panel SCCR requirements for most commercial and light industrial installations. The undervoltage release (UVR) integrated into the auxiliary release design provides a clean trip on loss of control voltage — common in emergency-stop chains or undervoltage protection schemes. No communication module is fitted, so this is a standalone protective device, not a smart breaker. That 3-inch width and 2.76-inch depth fit standard MCCB cutouts in SENTRON distribution panels and most third-party enclosures designed for 3-pole 125 A frames. The basic switch supplied is order code 3VA11124EF320AA0 — relevant if you need a replacement switching mechanism or are cross-referencing internal subassemblies. Maximum power loss is 30.6 W, which should be factored into enclosure thermal calculations, especially when multiple breakers are ganged.","metaTitle":"SENTRON 3VA1112-4EF32-0DA0 MCCB, 125 A, 3-Pole, 121 kA at 24","metaDescription":"SENTRON 3VA1112-4EF32-0DA0 molded case circuit breaker, 125 A rated current, 3-pole, 121 kA breaking capacity at 240 V AC. TM240 release, undervoltage release included. Active life","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"11.9 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":"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","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"30.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11124EF320AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=400197&mlfb=3VA1112-4EF32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1112-4EF32-0DA0 and how is it quoted for volume purchases?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time."},{"question":"What is 3VA1112-4EF32-0DA0's listed depth (70 mm) on this component line?","answer":"The depth is 70 mm, with a width of 76.2 mm and height of 130 mm."},{"question":"What are the key breaking capacity ratings for 3VA1112-4EF32-0DA0?","answer":"At 240 V it interrupts 121 kA, at 415 V it interrupts 75.6 kA, at 440 V it interrupts 52.5 kA, and at 500 V and 690 V it interrupts 11.9 kA (–)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF32-0DA0","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/3VA1112-4EF32-0DA0 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}}