{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, Molded case circuit breaker, 3VA1150-4EF42-0AA0, 4-pole, 50 A, TM240 thermal-magnetic trip, 121 kA interrupting at 240 VAC, IP40 front.","salesMarkdown":"## Siemens SENTRON 3VA1150-4EF42-0AA0 — 50 A 4-Pole MCCB, Line Protection Four poles suit 3-phase + neutral applications, or three-phase with a switched neutral. Interrupting capacity is published at multiple voltages: 121 kA at 240 VAC, 75.6 kA at 415 VAC, 52.5 kA at 440 VAC, and 11.9 kA at 500 VAC and 690 VAC. At 480 V systems — common in North American industrial panels — the 440 V figure (52.5 kA) is the closest published bound; expect the actual SCCR to fall between the 440 V and 500 V values.","metaTitle":"Siemens 3VA1150-4EF42-0AA0 SENTRON MCCB, 50 A, 4-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1150-4EF42-0AA0 molded case circuit breaker, 50 A rated, 4-pole, TM240 trip unit. Interrupting capacity 121 kA at 240 VAC. Active production. Quoted to order.","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":"0 A","Minimum":"0 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":"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]":"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":"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","design of the N-conductor protection":"without","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":"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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=344065&mlfb=3VA1150-4EF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1150-4EF42-0AA0 and how is it quoted?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Current pricing and availability are confirmed at quote time."},{"question":"What is the interrupting capacity of this MCCB at 240 VAC?","answer":"The interrupting capacity is 121 kA at 240 VAC. At 415 VAC it is 75.6 kA, and at 440 VAC it is 52.5 kA."},{"question":"Does the 3VA1150-4EF42-0AA0 include a ground-fault module?","answer":"No. This variant is specified without ground-fault monitoring. It uses a TM240 thermal-magnetic trip unit for overcurrent and short-circuit protection only."},{"question":"What are the physical dimensions of this breaker?","answer":"The dimensions are 130 mm height, 101.6 mm width, and 70 mm depth. The front-face protection rating is IP40."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EF42-0AA0","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/3VA1150-4EF42-0AA0 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}}