{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5EE32-0BM0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5EE32-0BM0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5EE32-0BM0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EE32-0BM0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5EE32-0BM0, molded case circuit breaker, 3-pole, 160 A, TM240 thermal-magnetic release, line protection, 187 kA at 240 V, undervoltage release.","salesMarkdown":"Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 76 kA at 440 V — figures that place it in the high-breaking-capacity tier for industrial distribution panels. This is a line-protection version, meaning the TM240 release is calibrated for cable and busbar protection rather than motor or generator circuits. ## Current derating across the operating range The 160 A rating holds flat from 40 °C through 50 °C, then derates gradually: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. This thermal curve is typical for a TM release with a 40 °C calibration reference. In a panel with ambient above 50 °C — a common condition in non-climate-controlled enclosures near ovens or in direct sun — the effective ampacity drops by roughly 6% at 70 °C. Factor this into the load schedule rather than relying on the nameplate 160 A. The breaker measures 130 mm in height and 3 inches in width, fitting standard 3-pole MCCB mounting footprints in SENTRON distribution boards and third-party enclosures with adjustable DIN-rail or bolt-on adapters.","metaTitle":"Siemens 3VA1140-5EE32-0BM0 SENTRON MCCB, 160 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA1140-5EE32-0BM0 molded case circuit breaker, 160 A rated continuous current, 187 kA breaking capacity at 240 V. Line protection, 3-pole, TM240 release, undervolt","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 40 °C":"160 A","at 45 °C":"160 A","at 50 °C":"160 A","at 55 °C":"158 A","at 60 °C":"155 A","at 65 °C":"153 A","at 70 °C":"150 A","Width [in]":"3 in","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","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"160 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","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.":"160 A","Adjustable response value current / li max.":"1 600 A","Adjustable response value current / li min.":"800 A","Adjustable response value current / lr min.":"112 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":"3VA9988-0AA12","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=810954&mlfb=3VA1140-5EE32-0BM0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EE32-0BM0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1140-5EE32-0BM0 at 240 V?","answer":"The interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at both 500 V and 690 V."},{"question":"Where can I buy 3VA1140-5EE32-0BM0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What is the height of 3VA1140-5EE32-0BM0?","answer":"The breaker height is 130 mm, with a width of 3 inches for the 3-pole frame."},{"question":"Does 3VA1140-5EE32-0BM0 include an undervoltage release?","answer":"Yes, it is equipped with an integrated undervoltage release (UVR) as the auxiliary release, designed to trip the breaker when control voltage drops below the dropout threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5EE32-0BM0","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/3VA1140-5EE32-0BM0 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}}