{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5EF32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5EF32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5EF32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5EF32-0AH0, molded case circuit breaker, 3-pole, 50 A rated continuous current Iu, TM240 overcurrent release, 187 kA breaking capacity at 240 V, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1150-5EF32-0AH0 is a 3-pole molded case circuit breaker (MCCB) rated for 50 A continuous current (Iu) at 40 °C, with a TM240 thermal-magnetic overcurrent release. Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V — figures that cover most industrial distribution fault levels without needing a current-limiting upstream device. The TM240 release has an adjustable long-time delay tr up to 1 s, letting you coordinate with downstream breakers on a selective trip scheme. Compared to the 3VA1110-5EE32-0JA0 (a 100 A frame with electronic release), this 3VA1150-5EF32-0AH0 is a 50 A frame with a thermal-magnetic TM240 release — simpler, no auxiliary power needed, and more tolerant of harmonic-rich loads that can fool electronic trip units. The 3VA1150 carries the same 70 mm depth and 76.2 mm width as the 3VA1110, so it drops into the same panel cutout and bus-bar layout without rewiring. The trade-off: you lose the adjustable I²t curves and ground-fault options of the electronic version. Operating temperature range -25 °C to 70 °C covers most indoor industrial environments; derate above 55 °C (48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, 45 A at 70 °C).","metaTitle":"Siemens 3VA1150-5EF32-0AH0 SENTRON MCCB, 50 A, 3-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA1150-5EF32-0AH0 molded case circuit breaker, 50 A rated, 3-pole, 187 kA breaking at 240 V. TM240 release, IP40 front. 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":"Yes","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 + 1 trip alarm switch HQ","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=29536&mlfb=3VA1150-5EF32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5EF32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1150-5EF32-0AH0 at 415 V?","answer":"121 kA at 415 V, which is sufficient for most industrial distribution fault levels without an upstream current-limiting device."},{"question":"Will 3VA1150-5EF32-0AH0 fit a panel designed for 3VA1110-5EE32-0JA0?","answer":"Yes — both share the same 70 mm depth and 76.2 mm width, so the 3VA1150 drops into the same panel cutout and bus-bar layout without rewiring."},{"question":"Where can I buy 3VA1150-5EF32-0AH0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5EF32-0AH0","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/3VA1150-5EF32-0AH0 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}}