{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4FE46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4FE46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4FE46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4FE46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4FE46-0AA0, molded case circuit breaker, 4-pole, 125 A rated current, TM220 thermal-magnetic release, line protection version.","salesMarkdown":"## Siemens SENTRON 3VA1112-4FE46-0AA0 — 125 A 4-Pole MCCB with TM220 Release The interrupting capacity reaches 121 kA at 240 V AC and 75.6 kA at 415 V AC — figures that govern its use in high-fault-current distribution panels where selectivity with downstream breakers is required. The TM220 release provides adjustable thermal (overload) and fixed magnetic (short-circuit) trip characteristics. The adjustable li response value maxes at 1250 A, giving some flexibility to coordinate with downstream motor starters or feeder breakers. Insulation voltage is rated at 800 V, and the unit accepts DC operation up to 600 V — relevant for battery-bank or UPS output protection. The 101.6 mm width (4 inches) is the standard 4-pole MCCB footprint for the SENTRON 3VA platform — it occupies four 25.4 mm pole positions on a DIN rail or mounting plate. ## Operating Range and Environment The 70 °C operating ceiling matches the derating curve endpoint — at that temperature the continuous current drops to 114 A, so a 125 A load at 70 °C would nuisance-trip. The 800 V insulation voltage allows use in 690 V systems with adequate clearance, and the 600 V DC rating covers most industrial DC bus voltages up to 500 V nominal.","metaTitle":"Siemens 3VA1112-4FE46-0AA0 SENTRON MCCB, 125 A, 4-Pole, TM22","metaDescription":"Siemens SENTRON 3VA1112-4FE46-0AA0 molded case circuit breaker, 125 A, 4-pole, TM220 release. 121 kA at 240 V, 75.6 kA at 415 V. Current lifecycle. 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":"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 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","Courant permanent assigné Iu":"125 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"TM220","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":"50%","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"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 current of the frame size":"160 A","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/abfde01f862d756399ce859453966cd9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=3923&mlfb=3VA1112-4FE46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4FE46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1112-4FE46-0AA0 and get a price?","answer":"This part is 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 commercial offer."},{"question":"What is the interrupting capacity of the 3VA1112-4FE46-0AA0 at different voltages?","answer":"The breaker delivers 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. These ratings determine where it can be applied in high-fault-current distribution without upstream fusing."},{"question":"Will the 3VA1112-4FE46-0AA0 drop into a panel specified for the 3VA1112-5EE32-0AA0?","answer":"Both breakers share the same 3VA platform physical footprint — 70 mm depth, 101.6 mm width per pole count — so the 4-pole 3VA1112-4FE46-0AA0 will occupy the same mounting and busbar positions as a 4-pole 3VA1112-5EE32-0AA0. The difference is in the release type and rating; verify the TM220 thermal-magnetic curve matches your coordination study before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4FE46-0AA0","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/3VA1112-4FE46-0AA0 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}}