{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF32-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF32-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF32-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF32-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4EF32-0CC0, molded case circuit breaker (MCCB), 3-pole, 125 A rated current at 40 °C, breaking capacity 121 kA at 240 V AC, depth 70 mm.","salesMarkdown":"It delivers 121 kA breaking capacity at 240 V AC, stepping down to 75.6 kA at 415 V and 52.5 kA at 440 V — numbers that tell you this breaker handles high-fault utility feeds or transformer secondaries without cascading upstream. ## Current ratings and thermal derating Rated 125 A continuously at ambient up to 50 °C. Above that the thermal trip starts pulling back: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, 114 A at 70 °C. The 121 kA at 240 V is the headline number, but the real-world SCCR you care about for a 400 V panel is 75.6 kA at 415 V. Factory-fitted with 2 auxiliary switches (HQ type) and an undervoltage release (UVR). No ground-fault module, no communication function, no voltage trip indicator. If you need shunt trip or ground-fault, this isn't the variant.","metaTitle":"Siemens 3VA1112-4EF32-0CC0 SENTRON MCCB, 125 A, 3-Pole, 70 m","metaDescription":"Siemens 3VA1112-4EF32-0CC0 SENTRON molded case circuit breaker, 125 A at 40 °C, 3-pole, breaking capacity 121 kA at 240 V. Active production. Sourced to order. Request quote.","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 Switch":"2 auxiliary switches HQ","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":"3VA9608-0BB24","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=323194&mlfb=3VA1112-4EF32-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF32-0CC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1112-4EF32-0CC0 at 415 V?","answer":"75.6 kA at 415 V AC. At 240 V it is 121 kA, at 440 V it is 52.5 kA, and at 500 V or 690 V it is 11.9 kA."},{"question":"What are the physical dimensions of this MCCB?","answer":"Height 130 mm, width 76.2 mm, depth 70 mm. It fits the standard SENTRON 3VA panel cutout and DIN-rail footprint."},{"question":"Does 3VA1112-4EF32-0CC0 include an undervoltage release?","answer":"Yes, it comes with a factory-fitted undervoltage release (UVR) plus 2 auxiliary switches (HQ type). No ground-fault monitoring or communication module."},{"question":"Where can I buy 3VA1112-4EF32-0CC0 and get current pricing?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF32-0CC0","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/3VA1112-4EF32-0CC0 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}}