{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EF36-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EF36-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4EF36-0AG0, 3-pole molded case circuit breaker (MCCB), 50 A rated current at 40 °C, 121 kA breaking capacity at 240 VAC, TM240 thermal-magnetic release, line protection design.","salesMarkdown":"It carries a 121 kA interrupting capacity at 240 VAC and 75.6 kA at 415 VAC, with a TM240 thermal-magnetic release that combines a thermal bimetal for overload protection and a magnetic coil for short-circuit response. The 121 kA at 240 VAC is the headline SCCR figure — enough for high-fault utility feeds in North American panels. At 415 VAC it still holds 75.6 kA, dropping to 52.5 kA at 440 VAC and 11.9 kA at both 500 VAC and 690 VAC. The thermal-magnetic TM240 release coordinates cleanly with downstream miniature breakers in a selective scheme — the magnetic trip is fixed, so verify the instantaneous threshold against the let-through of the downstream devices during coordination study. ## Current ratings across temperature At 55 °C it derates to 49 A, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. Ambient temperature inside the enclosure matters — if the panel runs hot, the continuous current capability drops. ## Auxiliary switching and monitoring The auxiliary switch signals the breaker's open/closed position; the trip alarm switch signals when the breaker has tripped on fault — useful for remote status monitoring in a PLC or SCADA system. It has a trip indicator and no undervoltage release or communication function. Ground-fault monitoring is not included.","metaTitle":"Siemens 3VA1150-4EF36-0AG0 SENTRON MCCB, 50A, 121kA at 240V","metaDescription":"Siemens 3VA1150-4EF36-0AG0 SENTRON molded case circuit breaker, 3-pole, 50A rated at 40°C, 121 kA breaking capacity at 240 VAC. TM240 thermal-magnetic release. Active production. Q","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":"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]":"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":"3VA11504EF360AA0","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":"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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=356909&mlfb=3VA1150-4EF36-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0AG0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1150-4EF36-0AG0?","answer":"Submit an RFQ through this listing. The 3VA1150-4EF36-0AG0 is sourced to order through independent distribution; current pricing and stock levels are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1150-4EF36-0AG0 at different voltages?","answer":"121 kA at 240 VAC, 75.6 kA at 415 VAC, 52.5 kA at 440 VAC, and 11.9 kA at both 500 VAC and 690 VAC."},{"question":"What is the rated current of 3VA1150-4EF36-0AG0 at elevated temperatures?","answer":"50 A from 40 °C to 50 °C, derating to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C."},{"question":"Does 3VA1150-4EF36-0AG0 include auxiliary contacts?","answer":"Yes, it includes one auxiliary switch and one trip alarm switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0AG0","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/3VA1150-4EF36-0AG0 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}}