{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-3EF32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-3EF32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-3EF32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker (MCCB), order code 3VA1150-3EF32-0CA0, 3-pole, 50 A at 40 °C, 75.6 kA breaking capacity at 240 V AC.","salesMarkdown":"The Siemens SENTRON 3VA1150-3EF32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 50 A across the 40 °C to 50 °C ambient range before it begins to derate. Breaking capacity hits 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and holds 11.9 kA at both 500 V and 690 V — giving you the SCCR headroom for high-fault utility feeds or transformer-secondaries in industrial distribution. Mounts on a DIN rail or direct panel; the 76.2 mm width (3 in) and 70 mm depth (2.76 in) fit standard SENTRON 3VA cutouts — no gland-plate rework when swapping from an earlier 3VA frame. Maximum power loss of 17.1 W at rated load — factor that into enclosure thermal rise calculations, especially in a sealed panel with other heat sources. Operating range from -25 °C to 70 °C, storage from -40 °C to 80 °C; the derating curve above 50 °C (49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, 45 A at 70 °C) is the number to use for high-ambient installations like pump houses or rooftop MCCs.","metaTitle":"Siemens SENTRON 3VA1150-3EF32-0CA0 MCCB, 50 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1150-3EF32-0CA0 molded case circuit breaker, 50 A continuous, 3-pole, 75.6 kA breaking at 240 V. Active production. Quoted to order.","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":"3VA11503EF320AA0","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":"3VA9608-0BB24","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":"0","Switching Capacity Class Of The Circuit Breaker":"N","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=433450&mlfb=3VA1150-3EF32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-3EF32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Will this drop into a panel specified for 3VA1110-5EF32-0LA0 without rewiring?","answer":"Both are 3-pole SENTRON 3VA frame MCCBs with the same 76.2 mm width and 70 mm depth, so the physical footprint and DIN-rail mount are identical — no panel rework needed. Verify the continuous current rating difference (50 A vs the peer's rating) against your load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-3EF32-0CA0","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/3VA1150-3EF32-0CA0 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}}