{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5ED12-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5ED12-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5ED12-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5ED12-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5ED12-0AA0, 1-pole molded case circuit breaker, 50 A rated continuous current Iu, 121 kA interrupting at 240 VAC, TM210 thermal-magnetic release, IP40 front protection.","salesMarkdown":"## Thermal derating — the real-world current curve At 55 °C it starts to step down: 49 A, then 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. The TM210 release has an adjustable Ir of 50 A (fixed at max) and an instantaneous Ii fixed at 500 A, so it's a line-protection breaker, not a motor-protection piece with adjustable overloads. The breaker measures 25.4 mm wide (1 inch), 130 mm tall (5.1 inches), and 70 mm deep (2.8 inches). That 1-pole width means it snaps into a standard DIN-rail or panel-mount footprint alongside other SENTRON 3VA units. The 4.9 W maximum power loss is low enough that thermal stacking in a multi-pole group isn't a concern in a ventilated enclosure.","metaTitle":"Siemens 3VA1150-5ED12-0AA0 SENTRON MCCB, 1-pole, 50 A, 121 k","metaDescription":"Siemens SENTRON 3VA1150-5ED12-0AA0 1-pole MCCB, 50 A rated, 121 kA at 240 VAC. TM210 release, IP40 front. Current production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"25.4 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"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]":"2.8 in","Width [in]":"1 in","Height [in]":"5.1 in","Number of poles":"1","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"4.9 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"50 A","Rated insulation voltage Ui":"500 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM210","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","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"250 V","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"50 A","Adjustable response value current / li max.":"500 A","Adjustable response value current / li min.":"500 A","Adjustable response value current / lr min.":"50 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"415 V","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=694648&mlfb=3VA1150-5ED12-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5ED12-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1150-5ED12-0AA0 and how is it quoted?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."},{"question":"What is the interrupting capacity of 3VA1150-5ED12-0AA0 at different voltages?","answer":"The interrupting capacity is 121 kA at 240 VAC and 9 kA at 415 VAC. The voltage class you're protecting into determines the fault-clearing headroom."},{"question":"What is the thermal derating curve for this MCCB?","answer":"It holds 50 A from 40 °C to 50 °C, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. Plan for the drop if your panel runs hot."},{"question":"Will 3VA1150-5ED12-0AA0 drop into a panel specified for 3VA1110-5EE32-0JA0?","answer":"Both are 1-pole SENTRON 3VA MCCBs with the same physical footprint (25.4 mm wide), so mechanical fit should be identical. However, verify the specific ratings — interrupting capacity, release type, and current settings — differ between order codes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5ED12-0AA0","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/3VA1150-5ED12-0AA0 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}}