{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7HN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7HN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7HN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 3VA2140-7HN32-0AA0, 40 A, 3-pole, ETU350 electronic trip unit, line protection design, 330 kA interrupting at 240 V.","salesMarkdown":"## SENTRON 3VA2 MCCB, 40 A Frame The Siemens 3VA2140-7HN32-0AA0 is a SENTRON 3VA2 molded case circuit breaker with a 40 A continuous current rating and a 3-pole configuration. It uses the ETU350 electronic trip unit, designed for line protection — meaning it handles overload and short-circuit protection in distribution panels, not motor or generator circuits. The interrupting capacity hits 330 kA at 240 V AC, so it safely clears high-fault-current faults common in large industrial services or transformer secondaries without cascading upstream. Rated insulation voltage is 800 V, and maximum power loss is 1.6 W. The breaker is rated for continuous full current from 40 °C through 70 °C ambient — no derating needed across that span, which simplifies panel layout in warm enclosures. It carries an IP40 protection rating on the front, meaning it's protected against tools and small solid objects but not moisture; keep it inside a panel or enclosure with a higher overall IP rating. ## Dimensions and Panel Fit The 3VA2140-7HN32-0AA0 measures 86 mm deep, 105 mm wide, and 181 mm high. That's a compact 3-pole MCCB footprint — it fits standard Siemens 3VA2 panel cutouts and busbar connections. No undervoltage release, no ground-fault monitoring, no communication function on this variant: it's a straight thermal-magnetic replacement with electronic trip, not a metering or remote-trip device.","metaTitle":"Siemens 3VA2140-7HN32-0AA0 SENTRON MCCB, 40 A, 3-Pole, ETU35","metaDescription":"Siemens 3VA2140-7HN32-0AA0 SENTRON molded case circuit breaker, 40 A continuous, 3-pole, ETU350 electronic trip unit. 330 kA at 240 V. Current lifecycle stage. Quoted to order agai","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":"480 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","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","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":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"No","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":"LSI","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=219857&mlfb=3VA2140-7HN32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7HN32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2140-7HN32-0AA0 at different voltages?","answer":"The interrupting capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V."},{"question":"Where can I buy 3VA2140-7HN32-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7HN32-0AA0","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/3VA2140-7HN32-0AA0 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}}