{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1112-4GD42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1112-4GD42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1112-4GD42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1112-4GD42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1112-4GD42-0AA0, molded case circuit breaker, 4-pole, 125 A, TM210 thermal-magnetic trip, breaking capacity 76 kA at 415 V AC.","salesMarkdown":"The Siemens SENTRON 3VM1112-4GD42-0AA0 is a 4-pole molded case circuit breaker rated 125 A continuous at 40 °C, with a TM210 thermal-magnetic trip unit providing LI protection (long-time and instantaneous). It is designed for line protection in distribution panels and switchboards, sized to fit a standard 101.6 mm wide (4-inch) footprint at 70 mm depth — a common form factor for panel builders working with 4-pole MCCBs in IEC-style enclosures. Breaking capacity runs 121 kA at 240 V AC, 76 kA at 415 V AC, 53 kA at 440 V AC, and 12 kA at 500 V AC — these numbers govern selectivity coordination with downstream breakers. ## Thermal derating and trip unit The TM210 trip holds 125 A flat from 40 °C through 50 °C, then derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. The adjustable instantaneous pickup (li) maxes at 1,250 A — roughly 10x the 125 A frame, which is a typical setting for motor branch circuits or high-inrush loads. Front-face protection is IP40 — splash protection is not built in; the breaker belongs behind a panel door or in a dead-front switchboard.","metaTitle":"Siemens 3VM1112-4GD42-0AA0 SENTRON MCCB, 125 A, 4-Pole, 76 k","metaDescription":"Siemens SENTRON 3VM1112-4GD42-0AA0 molded case circuit breaker, 125 A, 4-pole, TM210 trip, 76 kA at 415 V. Active production. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"53 kA","at 500 V":"12 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]":"2.8 in","Width [In]":"4 in","Height [In]":"5.1 in","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"23 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"690 V","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"TM210","Design Of Short-Circuit Protection":"For switching capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available under Service & Support in the last chapter","protection class IP / on the front":"IP40","Max. rated operational voltage Ue with DC":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Adjustable response value current / li max.":"1 250 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Max. rated operational voltage Ue with AC 50/60Hz":"500 V","Mechanical Service Life (Switching Cycles) / Typical":"15 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3f0ee706be5ade96bbda51580efca6e9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575413&mlfb=3VM1112-4GD42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1112-4GD42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VM1112-4GD42-0AA0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3VM1112-4GD42-0AA0?","answer":"125 A continuous at 40 °C, 4-pole, TM210 thermal-magnetic trip (LI protection), breaking capacity 76 kA at 415 V AC, rated insulation voltage 690 V. Dimensions: 101.6 mm wide, 70 mm deep, 130 mm tall."},{"question":"What compliance documentation does this breaker carry?","answer":"The SENTRON series is designed to IEC 60947-2 standards. Specific certifications (UL, CSA, CE, UKCA, EAC) should be verified against the manufacturer's documentation for this exact order code at the time of ordering, as regional variants may differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1112-4GD42-0AA0","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/3VM1112-4GD42-0AA0 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}}