{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF36-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF36-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1112-4EF36-0AE0, 3-pole, 125 A at 40 °C, TM240 thermal-magnetic release, 121 kA interrupting at 240 V.","salesMarkdown":"Interrupting capacity is the headline number here: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V. The 3VA series uses a rotary handle mechanism common across the SENTRON family, so panel cutouts and bus-bar layouts transfer between frame sizes. Footprint: 76.2 mm wide (3 inches), 130 mm tall (5.12 inches), 70 mm deep (2.76 inches). The 3-pole width matches standard 3-inch MCCB slots in most distribution panelboards. No auxiliary or communication modules are factory-fitted on this variant; the design carries provision for up to 4 auxiliary switches HQ (high-qualified) if you add them later. If you need any of those, you are looking at a different suffix or an add-on accessory. The basic switch supplied is 3VA11124EF360AA0 — that is the internal mechanism this order code ships with. ## Thermal and environmental limits The 125 A rating holds at 40 °C, 45 °C, and 50 °C without derating; at 55 °C it drops to 122 A, at 60 °C to 120 A, at 65 °C to 117 A, and at 70 °C to 114 A.","metaTitle":"Siemens 3VA1112-4EF36-0AE0 SENTRON MCCB, 125 A, 3-Pole, 121","metaDescription":"Siemens SENTRON 3VA1112-4EF36-0AE0 molded case circuit breaker, 125 A at 40 °C, 3-pole, 121 kA at 240 V. TM240 release. Current lifecycle. 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","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":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"28.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11124EF360AA0","Design Of The Auxiliary Switch":"4 auxiliary switches HQ","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","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":"4","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":"box terminal on both sides","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=59447&mlfb=3VA1112-4EF36-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0AE0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1112-4EF36-0AE0?","answer":"We source this MCCB to order against an RFQ. Submit a request and we will confirm current pricing and availability at quote time."},{"question":"What is the interrupting capacity of this MCCB at different voltages?","answer":"121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V."},{"question":"Does this breaker include an undervoltage release or shunt trip?","answer":"No. This order code does not include an undervoltage release, shunt trip, ground-fault monitoring, trip indicator, or voltage trigger. Those are separate add-on accessories or different suffix variants."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0AE0","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/3VA1112-4EF36-0AE0 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}}