{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EF36-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EF36-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4EF36-0AB0, molded case circuit breaker, 3-pole, 50 A rated continuous current, TM240 overcurrent release, 121 kA at 240 V, 75.6 kA at 415 V, 2 auxiliary switches HP.","salesMarkdown":"The Siemens SENTRON 3VA1150-4EF36-0AB0 is a 3-pole molded case circuit breaker (MCCB) rated for 50 A continuous current at 40 °C, with a TM240 thermal-magnetic overcurrent release. Its interrupting capacity reaches 121 kA at 240 V and 75.6 kA at 415 V, making it suitable for high-fault-current distribution panels where selectivity with upstream breakers is required. At 440 V the interrupting rating is 52.5 kA; at 690 V it drops to 11.9 kA — the voltage-dependent curve is typical for MCCBs and governs where this breaker can be applied in a 690 V system. The rated continuous current holds at 50 A up to 50 °C ambient, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. Panel builders should account for the derating when the breaker is enclosed or mounted near other heat sources. ## Physical fit and auxiliary contacts The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm high — a standard 3-pole MCCB footprint for DIN-rail or panel-mount installation.","metaTitle":"Siemens 3VA1150-4EF36-0AB0 SENTRON MCCB, 50 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1150-4EF36-0AB0 molded case circuit breaker, 50 A rated continuous current, 3-pole, 121 kA breaking capacity at 240 V. Current lifecycle. Sourced to order agains","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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"48 A","at 60 °C":"47 A","at 65 °C":"46 A","at 70 °C":"45 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"50 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"50 A","Adjustable response value current / li max.":"500 A","Adjustable response value current / li min.":"250 A","Adjustable response value current / lr min.":"35 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA11","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e74c20db346da22ed1f0301cf5259515.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=11224&mlfb=3VA1150-4EF36-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF36-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1150-4EF36-0AB0 at 415 V?","answer":"At 415 V the interrupting rating is 75.6 kA, which provides ample fault-clearing headroom for most industrial distribution panels."},{"question":"Where can I buy 3VA1150-4EF36-0AB0 and how is it quoted?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ with your target quantity and delivery window."},{"question":"Will 3VA1150-4EF36-0AB0 drop into a panel specified around 3VA1010-4ED32-0AC0?","answer":"The 3VA1150-4EF36-0AB0 uses the same 3-pole MCCB footprint (70 mm deep, 76.2 mm wide, 130 mm high) as the 3VA1010 frame, so it will physically fit the same mounting holes and bus connections. However, the higher continuous current (50 A vs. the 3VA1010's lower rating) and different trip curve (TM240) mean the upstream protection coordination must be recalculated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EF36-0AB0","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/3VA1150-4EF36-0AB0 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}}