{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5GF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5GF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5GF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5GF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5GF42-0AA0, molded case circuit breaker, line protection, 4-pole, 125 A, TM240 release, 187 kA at 240 V.","salesMarkdown":"## 125 A MCCB with 187 kA interrupting capacity — the selectivity anchor for high-fault panels At 415 V it still clears 121 kA, and at 440 V it holds 75.6 kA. The 4-pole configuration covers three-phase plus neutral, with 100 % N-conductor protection. Above that it derates linearly: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. Dimensions are 101.6 mm wide by 130 mm tall by 70 mm deep; the 4-pole width matches the standard 4-module MCCB footprint on a DIN rail or bolted bus. Maximum power loss is 28.1 W — relevant for enclosure thermal calculations when grouping several breakers. ## Approvals and compliance documentation As a SENTRON series MCCB, the 3VA1112-5GF42-0AA0 carries IEC 60947-2 certification for molded case circuit breakers. The manufacturer provides RoHS and REACH declarations through its standard documentation portal. For UL/CSA listings, verify the specific file number against the Siemens 3VA UL mark database — the IEC-rated variant may differ from a UL 489-listed version.","metaTitle":"Siemens 3VA1112-5GF42-0AA0 SENTRON MCCB, 125 A, 4-Pole, 187","metaDescription":"Siemens SENTRON 3VA1112-5GF42-0AA0 molded case circuit breaker, 125 A, 4-pole, TM240 release. Rated 187 kA at 240 V. Current production. Sourced to order against RFQ.","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":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 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]":"4 in","Height [In]":"5.12 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":"28.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"125 A","Ground-Fault Monitoring Version":"Without","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","design of the N-conductor protection":"100%","Max. rated operational voltage Ue with DC":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 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":"M","Max. rated operational current of the frame size":"160 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6942bdc2dfa5f81488cdf7385e995af9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=72631&mlfb=3VA1112-5GF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5GF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3VA1112-5GF42-0AA0?","answer":"Submit an RFQ through this listing. The part is sourced to order; current pricing and stock position are confirmed at quote time."},{"question":"What is the closest functional alternative to 3VA1112-5GF42-0AA0?","answer":"The 3VA1112-5EF32-0CA0 is a 4-pole 125 A MCCB in the same 3VA frame, but with a different release (EF32 vs TM240). The TM240 has a fixed thermal rating at 125 A; the EF32 release may have different magnetic pickup ranges. Verify the release curve against your coordination study before substituting — the frame and terminal layout are identical, so it drops into the same panel footprint without rewiring."},{"question":"What are the key interrupting ratings for 3VA1112-5GF42-0AA0?","answer":"187 kA at 240 V AC, 121 kA at 415 V AC, 75.6 kA at 440 V AC, and 17 kA at both 500 V and 690 V AC."},{"question":"What is the depth of 3VA1112-5GF42-0AA0?","answer":"70 mm (2.76 in)."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"RoHS and REACH declarations are available through the Siemens documentation portal. The breaker is designed to IEC 60947-2. For UL/CSA listings, verify the specific file against the Siemens 3VA UL database, as the IEC-rated variant may differ from a UL 489-listed version."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5GF42-0AA0","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/3VA1112-5GF42-0AA0 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}}