{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series molded case circuit breaker, 3VA2140-5MN32-0CH0, 3-pole, 40 A rated, motor protection design, 121 kA breaking capacity at 415 V, with undervoltage release and auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA2140-5MN32-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated at 40 A, designed specifically for motor protection. It carries a flat 40 A rating across the full ambient temperature range from 40 °C to 70 °C — no derating needed as the panel warms up, which simplifies panel design in enclosed or high-heat environments. Breaking capacity sits at 187 kA at 240 V and 121 kA at 415 V — figures that put this MCCB in the high-interrupting category for industrial distribution. At 500 V it still clears 75.6 kA; at 690 V the rating drops to 3.7 kA, which is typical for this frame size and reflects the arc extinction limits at higher voltage. For a 40 A motor-protective breaker, the 121 kA at 415 V gives ample headroom for high-fault installations like transformer secondaries or large motor control centers. ## Protection and auxiliary complement That means it arrives ready for remote status monitoring and undervoltage trip without ordering separate accessories. The UVR drops the breaker when control voltage falls below the dropout threshold — common in safety circuits and emergency-stop chains. Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA frame footprint that drops into existing panel layouts without re-drilling.","metaTitle":"Siemens 3VA2140-5MN32-0CH0 SENTRON MCCB, 40 A, 3-Pole, Motor","metaDescription":"Siemens SENTRON 3VA2140-5MN32-0CH0 molded case circuit breaker, 40 A rated, 3-pole, motor protection design with undervoltage release. 121 kA at 415 V. Current lifecycle stage. Quo","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 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":"3VA9608-0BB24","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=569497&mlfb=3VA2140-5MN32-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0CH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2140-5MN32-0CH0 at 415 V?","answer":"121 kA at 415 V, with 187 kA at 240 V and 75.6 kA at 500 V."},{"question":"What auxiliary switches come with this MCCB?","answer":"Two auxiliary switches plus one trip alarm switch are factory-fitted, along with an undervoltage release."},{"question":"Where can I buy 3VA2140-5MN32-0CH0 and get current pricing?","answer":"This part is 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 commercial offer."},{"question":"Will 3VA2140-5MN32-0CH0 fit a panel designed for a 3VA2116-5HL32-0AK0?","answer":"Both are SENTRON 3VA frame breakers with the same 105 mm width and 86 mm depth, so the footprint is identical. The wiring and bus connections are compatible — no re-drilling or re-termination needed for the physical mount."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0CH0","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/3VA2140-5MN32-0CH0 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}}