{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0BL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0BL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0BL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0BL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-5MN32-0BL0, molded case circuit breaker, 3-pole, 40 A, motor protection design, 187 kA interrupting capacity at 240 V AC.","salesMarkdown":"That's a solid spec for a motor branch circuit that sees seasonal ambient swings. The UVR drops the breaker if supply voltage falls below a set threshold, which keeps a motor from trying to start under brownout conditions. Phase failure detection catches a lost leg before single-phasing cooks the winding. ## Interrupting capacity — what those numbers mean for your fault current This MCCB is rated to interrupt 187 kA at 240 V, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3.7 kA at 690 V. At 415 V, the 121 kA rating still covers most distribution panels. The sharp drop to 3.7 kA at 690 V tells you this breaker is not intended for 690 V motor circuits with high available fault current; it's sized for the 240–500 V range where the interrupting capacity stays well above typical panel SCCR requirements. ## Panel fit and auxiliary configuration That's a standard SENTRON 3VA2 footprint — it bolts into the same mounting pattern as other 3VA2 frames in the family. That's enough status feedback for a remote PLC to know whether the breaker is on, tripped on fault, or switched off manually — no need to add separate aux blocks for basic monitoring.","metaTitle":"Siemens 3VA2140-5MN32-0BL0 SENTRON MCCB, 40 A, 3-Pole, Motor","metaDescription":"Siemens 3VA2140-5MN32-0BL0 SENTRON molded case circuit breaker, 40 A rated current, 3-pole motor protection design, 187 kA interrupting at 240 V. Active production. Sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","Maximum":"17 s","Minimum":"4 s","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Motor protection","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"4.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA21405MN320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch + 1 electrical alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","operating power / at AC-3 / at 230 V":"11 000 W","operating power / at AC-3 / at 400 V":"18 500 W","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","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":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","Switching Capacity Class Of The Circuit Breaker":"E","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=569654&mlfb=3VA2140-5MN32-0BL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0BL0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2140-5MN32-0BL0 at 240 V?","answer":"It is rated to interrupt 187 kA at 240 V AC. At 415 V and 440 V the rating is 121 kA, at 500 V it is 75.6 kA, and at 690 V it is 3.7 kA."},{"question":"Where can I buy 3VA2140-5MN32-0BL0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0BL0","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/3VA2140-5MN32-0BL0 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}}