{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4GF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4GF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4GF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4GF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-4GF46-0AA0, 4-pole molded case circuit breaker, 40 A rated current, TM240 thermal-magnetic release, interrupting capacity 121 kA at 240 V AC.","salesMarkdown":"The TM240 thermal-magnetic release handles overloads and short circuits up to the breaker's interrupting capacity. At 240 V it interrupts 121 kA; at 415 V that drops to 75.6 kA, and at 690 V it holds at 11.9 kA — the full spectrum covers most industrial service-entrance and feeder applications. The 4-pole configuration suits three-phase-plus-neutral or dual-fed systems where all live conductors need coordinated protection. Rated 40 A at 40 °C ambient, the breaker holds 40 A through 50 °C, then derates to 39 A at 55 °C and 37 A at 70 °C — useful when the panel runs warm or the breaker sits near other heat sources. The 70 mm depth and 101.6 mm width (4-inch standard) mean it fits a typical MCCB slot without surprises; the 130 mm height clears most 200 A–frame enclosures. IP40 on the front keeps tools and fingers out but expects a sealed enclosure for washdown areas. ## Key electrical ratings at a glance Maximum power loss is 10.8 W, which matters for thermal budgeting in densely packed panels.","metaTitle":"Siemens 3VA1140-4GF46-0AA0 SENTRON MCCB, 40 A, 4-Pole, 121 k","metaDescription":"Siemens 3VA1140-4GF46-0AA0 SENTRON molded case circuit breaker, 40 A rated, 4-pole, TM240 release, interrupting up to 121 kA at 240 V. Active production. Quoted to order against RF","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","Maximum":"40 A","Minimum":"40 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":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","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","design of the N-conductor protection":"100%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 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":"0","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":"https://cdn.aoctrl.com/d7d98d40960b33eacdaa41bfee89c842.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=175474&mlfb=3VA1140-4GF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4GF46-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4GF46-0AA0","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/3VA1140-4GF46-0AA0 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}}