{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA molded case circuit breaker, 3VA1150-4EE42-0AA0, 4-pole, 50 A rated, TM220 thermal-magnetic release, 75.6 kA interrupting capacity at 415 V.","salesMarkdown":"The Siemens SENTRON 3VA1150-4EE42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated 50 A continuous at 40 °C, using a TM220 thermal-magnetic overcurrent release — meaning the thermal element handles overloads and the magnetic element handles short-circuits, no electronics to fail or program. This 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. ## Thermal rating and ambient derating Above that it derates linearly: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, 45 A at 70 °C. The TM220 release is fixed, not adjustable, so the thermal curve is factory-set. Four poles in a 101.6 mm wide package — that is about 25.4 mm per pole, standard for this frame size. Front IP40 protection means it is splash-proof from the front but not sealed; mount it in an IP54 or higher enclosure if washdown is present.","metaTitle":"SENTRON 3VA1150-4EE42-0AA0 MCCB, 50 A, 4-Pole, 75.6 kA at 41","metaDescription":"Siemens SENTRON 3VA1150-4EE42-0AA0 molded case circuit breaker, 50 A rated, 4-pole, TM220 release, 75.6 kA interrupting at 415 V. 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":"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":"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":"https://cdn.aoctrl.com/a95fae99cd7f47796cc0d80194338c68.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=496957&mlfb=3VA1150-4EE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this breaker at 415 V?","answer":"75.6 kA at 415 V. That is the key rating for most industrial 400 V class distribution panels."},{"question":"Where can I buy 3VA1150-4EE42-0AA0?","answer":"We source this part and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What compliance documentation does this breaker carry?","answer":"As a Siemens SENTRON MCCB, it carries UL, CSA, CE, and IEC certifications typical for this class. Specific documentation (RoHS, REACH, UL file number) is available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EE42-0AA0","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/3VA1150-4EE42-0AA0 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}}