{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-3EF36-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-3EF36-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-3EF36-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF36-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series molded case circuit breaker (MCCB), 3-pole, 50 A rated current, 75.6 kA breaking capacity at 240 V AC, line protection design with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"## Commissioning engineer's spec recap At 40 °C it carries a full 50 A continuous; the thermal curve holds flat through 50 °C, then derates to 45 A at 70 °C. Breaking capacity lands at 75.6 kA at 240 V, 52.5 kA at 415 V, and 11.9 kA at 690 V — sufficient for most industrial distribution panels fed from a transformer secondary. The breaker occupies a 76.2 mm wide by 130 mm tall by 70 mm deep footprint — a standard 3-pole MCCB envelope that fits most DIN-rail or panel-mount backplates. Maximum power dissipation is 17.1 W at full rated load. In a sealed, uncooled enclosure this heat must be factored into the thermal budget — adjacent devices may need derating if airflow is restricted. This covers most indoor industrial environments and unheated warehouses. The part is not rated for marine or offshore use without additional type-approval documentation — no DNV, ABS, or Lloyd's certificate is listed in the standard spec set.","metaTitle":"Siemens SENTRON 3VA1150-3EF36-0BC0 MCCB, 50A, 75.6kA at 240V","metaDescription":"Siemens SENTRON 3VA1150-3EF36-0BC0 molded case circuit breaker, 3-pole, 50A rated at 40°C, 75.6kA breaking at 240V. Active production. Sourced to order against RFQ.","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":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"17.1 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":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","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":"3VA9988-0AA12","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=380015&mlfb=3VA1150-3EF36-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF36-0BC0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-3EF36-0BC0","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/3VA1150-3EF36-0BC0 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}}