{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-3EF32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-3EF32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-3EF32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-3EF32-0AA0, 3-pole molded case circuit breaker, 50 A rated current at 40 °C, TM240 overcurrent release, 75.6 kA breaking capacity at 240 V AC, line protection design.","salesMarkdown":"The 70 mm depth and 76.2 mm width fit standard Siemens SENTRON 3VA mounting footprints; no adapter plate needed for existing 3VA panel cutouts. Interrupting ratings drop as line voltage rises: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. The breaker holds 50 A continuously from 40 °C through 50 °C, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. In a warm enclosure, expect to lose about 1 A per 5 °C above 50 °C. Trip indicator is not fitted, so visual status requires an auxiliary contact add-on. ## Panel Integration and Sourcing The 70 mm depth leaves clearance for rear-connected busbars; the 76.2 mm width (3 inches) matches standard 3-pole MCCB spacing. Wire termination accepts copper or aluminum conductors per the device manual — torque values are specified on the nameplate. For DC network applications, refer to the 3VA molded case circuit breaker device manual for switching power values.","metaTitle":"Siemens 3VA1150-3EF32-0AA0 SENTRON MCCB, 50A, 75.6kA at 240V","metaDescription":"Siemens 3VA1150-3EF32-0AA0 SENTRON molded case circuit breaker, 3-pole, 50A rated at 40°C, 75.6kA breaking capacity at 240V. TM240 release, line protection. Active production. Requ","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","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":"14.6 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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"N","Mechanical Service Life (Operating 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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/43b05ed3877d0f18aee8c9f48e8f8aab.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1855&mlfb=3VA1150-3EF32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1150-3EF32-0AA0 and get a price?","answer":"This breaker is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for a firm price and lead time."},{"question":"What is the breaking capacity of the 3VA1150-3EF32-0AA0 at different voltages?","answer":"75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. The interrupting rating decreases as voltage increases."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-3EF32-0AA0","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/3VA1150-3EF32-0AA0 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}}