{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7HM32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7HM32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7HM32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HM32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-7HM32-0AA0, molded case circuit breaker, 3-pole, 40 A continuous, line protection, 330 kA interrupting at 240 V.","salesMarkdown":"## Interrupting capacity — the real number for fault coordination At 240 V it is rated for 330 kA; at 415 V and 440 V it holds at 242 kA; at 500 V it drops to 187 kA; and at 690 V it is 3.7 kA. For a 40 A frame, those are high-interrupt ratings — the kind you need when the transformer is close and the available fault current is stiff. The 690 V figure tells you this is not a 690 V primary breaker; it is a 400–480 V secondary breaker with a very high ceiling at the lower voltages. The 105 mm width across three poles means it occupies roughly four 27 mm module spaces on a DIN rail, though the SENTRON 3VA series also accepts screw-mounting for bolted busbar connections. ## Ground-fault monitoring and auxiliary functions The trip indicator is also absent, so fault indication is via the handle position only. Power loss is a modest 1.6 W maximum, which matters when you are stacking multiple breakers in a sealed enclosure and counting the thermal budget.","metaTitle":"Siemens 3VA2140-7HM32-0AA0 SENTRON MCCB, 40 A, 3-Pole, 330 k","metaDescription":"Siemens 3VA2140-7HM32-0AA0 SENTRON molded case circuit breaker, 40 A continuous, 3-pole, line protection. Interrupting capacity 330 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","Maximum":"480 A","Minimum":"60 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.7 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"40 A","at 60 °C":"40 A","at 65 °C":"40 A","at 70 °C":"40 A","Depth [In]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 in","Initial Value":"16 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"40 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"1.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=434041&mlfb=3VA2140-7HM32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HM32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2140-7HM32-0AA0 at 240 V?","answer":"At 240 V the interrupting capacity is 330 kA. At 415 V and 440 V it is 242 kA, at 500 V it is 187 kA, and at 690 V it is 3.7 kA."},{"question":"Will 3VA2140-7HM32-0AA0 drop into a panel specified around 3VA2163-8HM32-0AA0 without rewiring?","answer":"The 3VA2140-7HM32-0AA0 shares the same SENTRON 3VA frame dimensions (105 mm wide, 181 mm high, 86 mm deep) as the 3VA2163-8HM32-0AA0, so it is a form-fit drop-in for the same mounting footprint. The functional difference is the continuous current rating — 40 A versus the 63 A of the 3VA2163 variant — so the load wiring and upstream protection must match the lower rating."},{"question":"Who supplies 3VA2140-7HM32-0AA0 and how is it quoted for volume purchases?","answer":"This part is sourced through independent industrial-automation distribution channels. It is quoted to order against an RFQ; availability and current pricing are confirmed at quote time. No minimum volume is assumed, but larger quantities typically improve the per-unit position."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7HM32-0AA0","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/3VA2140-7HM32-0AA0 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}}