{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA4112-4ED34-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA4112-4ED34-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA4112-4ED34-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA4112-4ED34-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA4112-4ED34-1AA0, 3-pole molded-case circuit breaker, 125 A at 40 °C, 65 kA interrupting at 240 V AC, TM210 thermal-magnetic release, LI protection.","salesMarkdown":"## 125 A MCCB with 65 kA interrupting capacity The Siemens SENTRON 3VA4112-4ED34-1AA0 is a 3-pole molded-case circuit breaker rated 125 A at 40 °C, with a TM210 thermal-magnetic overcurrent release that provides LI (long-time and instantaneous) protection. The breaker holds full 125 A rating up to 50 °C ambient; above that it derates linearly to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 115 A at 70 °C. This matters when the breaker is packed into a warm enclosure or mounted near other heat sources — the 70 °C figure is the operating maximum, not the derating floor. Maximum power loss is 29.1 W, so ventilation or spacing in the panel matters for dense layouts. Dimensions are 76.2 mm wide, 129.4 mm high, and 75.1 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. No undervoltage release, no motor drive, and no communication function are built in; this is a plain thermal-magnetic breaker for straightforward overcurrent and short-circuit protection.","metaTitle":"Siemens 3VA4112-4ED34-1AA0 SENTRON MCCB, 125 A, 65 kA at 240","metaDescription":"Siemens 3VA4112-4ED34-1AA0 SENTRON molded-case circuit breaker, 3-pole, 125 A, 65 kA at 240 V AC. TM210 thermal-magnetic release with LI protection. Current production; sourced to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"75.1 mm","Width":"76.2 mm","title":"3VA4112-4ED34-1AA0","Height":"129.4 mm","at 240 V":"65 kA","at 480 V":"25 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":"115 A","Depth [In]":"2.96 in","Width [In]":"3 in","Height [In]":"5.09 in","description":"circuit breaker 3VA4 UL frame 125 breaking capacity class S 25kA @ 480 V 3-pole, line protection TM210, FTFM, In=125A overload protection Ir=125A fixed short-circuit protection Ii=10 x In UL489 SB (naval), 50 deg. cel. clamp connection","Trip Indicator":"No","at 480 Y/277 V":"25 kA","at 600 Y/347 V":"14 kA","Number Of Poles":"3","Product version":"System protection","Voltage Trigger":"No","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":"29.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"TM210","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","operating voltage / at AC / rated value":"690 V","Product Extension / Optional / Motor Drive":"No","product designation / according to UL file":"SEAM","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","electrical endurance (operating cycles) / at 480 V":"8 000","electrical endurance (operating cycles) / at 600 V":"4 000","marking / according to UL 489 / 100%-rated breaker":"No","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"Infeed side: Low tab"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e3c5a0db84926dee35e456cc1567cb64.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1058123&mlfb=3VA4112-4ED34-1AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA4112-4ED34-1AA0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; a confirmed price and lead time are provided at quote time."},{"question":"What is 3VA4112-4ED34-1AA0's interrupting capacity at 480 V?","answer":"It is rated 25 kA at 480 V AC (and 25 kA at 480 Y/277 V). At 240 V the rating rises to 65 kA."},{"question":"What compliance documentation does this brand provide for 3VA4112-4ED34-1AA0?","answer":"The product carries UL file designation SEAM and is designed to IEC standards. RoHS and REACH compliance documentation is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA4112-4ED34-1AA0","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/3VA4112-4ED34-1AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}