{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5EF32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5EF32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5EF32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5EF32-0BA0, molded case circuit breaker, 3-pole, 50 A rated continuous current Iu, TM240 overcurrent release, 187 kA breaking capacity at 240 V, undervoltage release, IP40 front protection.","salesMarkdown":"## SENTRON 3VA1150-5EF32-0BA0 — 50 A MCCB with TM240 release This breaker is designed for distribution panelboards and switchboards where selectivity with downstream breakers is planned. The undervoltage release (UVR) integrated as standard allows remote or automatic tripping when control voltage drops — useful for emergency-stop circuits or undervoltage protection schemes. ## Breaking capacity across voltages Rated short-circuit breaking capacity varies with system voltage: 187 kA at 240 V AC, 121 kA at 415 V AC, 75.6 kA at 440 V AC, and 17 kA at 690 V AC. At 415 V, the 121 kA rating covers most industrial and commercial distribution applications where transformer impedance limits fault current to around 50–65 kA — this breaker provides substantial margin. The 690 V rating at 17 kA is adequate for 690 V drives or mining distribution but note the drop-off. Derating starts at 55 °C (48 A), stepping down to 45 A at 70 °C. This is a flat curve through 50 °C — useful for panels with moderate internal heat rise. The IP40 front protection means the breaker face is protected against tools and small wires but not water — install in a suitable enclosure for washdown or outdoor environments. ## Physical fit and mounting The 76.2 mm width (3-inch footprint) is standard for 3-pole SENTRON 3VA molded case breakers in this frame size — it fits existing panel cutouts and busbar spacing for 3-pole distribution. The 70 mm depth is shallower than many competitive MCCBs, leaving more wiring space behind the breaker in a 600 mm deep enclosure. ## Undervoltage release and auxiliary options No auxiliary contact version is fitted (without). No communication function, no voltage trigger, no ground fault monitoring. If you need auxiliary contacts for status feedback, they must be added as a separate accessory.","metaTitle":"Siemens 3VA1150-5EF32-0BA0 SENTRON MCCB, 50 A, 187 kA at 240","metaDescription":"Siemens SENTRON 3VA1150-5EF32-0BA0 molded case circuit breaker, 50 A rated, 187 kA breaking at 240 V. TM240 release, undervoltage trip. 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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"Without","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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":"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":"690 V","Type of electrical connection / for main current circuit":"lug terminal","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=85655&mlfb=3VA1150-5EF32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1150-5EF32-0BA0 fit in a panel designed for 3VA1112-5EF32-0CA0?","answer":"Yes, both breakers share the same SENTRON 3VA frame dimensions (130 mm height, 76.2 mm width, 70 mm depth), so they mount in the same cutout and busbar spacing without rewiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5EF32-0BA0","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/3VA1150-5EF32-0BA0 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}}