{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-3EF36-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-3EF36-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-3EF36-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF36-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker, 3-pole, 50 A rated current at 40 °C, 75.6 kA interrupting capacity at 240 V AC, TM240 overcurrent release, line protection design.","salesMarkdown":"It carries 50 A continuously at 40 °C and can interrupt up to 75.6 kA at 240 V AC — enough for high-fault utility feeds or transformer secondaries. The 70 mm depth and 76.2 mm width match the standard 3VA mounting footprint — drops into the same panel cutout as other 3VA three-pole frames without re-drilling. ## Ratings that govern the real application The 50 A rating holds flat from 40 °C through 50 °C ambient, 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 hot panel — say a poorly ventilated enclosure near a furnace line — expect to drop the continuous load to 45 A. The interrupting capacity steps down with voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V or 690 V. Coordination studies should use the voltage-specific SCCR, not the 240 V headline. Power loss is 14.6 W maximum — negligible for thermal budget in most enclosures, but worth noting if multiple breakers are ganged in a sealed box.","metaTitle":"Siemens 3VA1150-3EF36-0AG0 SENTRON MCCB, 50A, 75.6kA at 240V","metaDescription":"Siemens SENTRON 3VA1150-3EF36-0AG0 molded case circuit breaker, 3-pole, 50A rated at 40°C, 75.6kA interrupting at 240V. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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":"Yes","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","Of The Supplied Basic Switch":"3VA11503EF360AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HP","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching Capacity Class Of The Circuit Breaker":"N","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=532995&mlfb=3VA1150-3EF36-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF36-0AG0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this MCCB?","answer":"It is a 3-pole, 50 A MCCB with a TM240 thermal-magnetic release. Interrupting capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500/690 V. Rated insulation voltage is 800 V."},{"question":"Where can I buy the 3VA1150-3EF36-0AG0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for quote to proceed."},{"question":"What compliance documentation does Siemens provide for this breaker?","answer":"As a SENTRON series MCCB, it carries the standard Siemens declarations for RoHS and REACH compliance, plus UL, CSA, and IEC certifications typical for the 3VA family. Specific certificate numbers are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-3EF36-0AG0","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/3VA1150-3EF36-0AG0 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}}