{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-5HN32-0KG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-5HN32-0KG0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-5HN32-0KG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5HN32-0KG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-5HN32-0KG0, molded case circuit breaker, 3-pole, 40 A continuous rating, 187 kA interrupting at 240 VAC, line protection design, with shunt trip (STL) and auxiliary switch + trip alarm.","salesMarkdown":"The Siemens SENTRON 3VA2040-5HN32-0KG0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve simplifies panel sizing in a warm enclosure. Interrupting capacity is the headline: 187 kA at 240 VAC, dropping to 121 kA at 415/440 V, then 75.6 kA at 500 V, and 3 kA at 690 V. At typical 480 V distribution levels this breaker handles serious fault current without cascading upstream — a key selectivity point for a main or feeder position. The basic switch inside is order code 3VA20405HN320AA0. No adapter plate needed for a direct swap within the same family.","metaTitle":"Siemens 3VA2040-5HN32-0KG0 SENTRON MCCB, 40 A, 3-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA2040-5HN32-0KG0 molded case circuit breaker, 40 A continuous, 3-pole, 187 kA interrupting at 240 VAC. Current lifecycle. Shunt trip STL included. 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":"480 A","Minimum":"480 A","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 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":"Yes","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":"2.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA20405HN320AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HP","Design Of The Auxiliary Release":"shunt trip (STL)","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","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":"100 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching Capacity Class Of The Circuit Breaker":"M","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=693825&mlfb=3VA2040-5HN32-0KG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5HN32-0KG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2040-5HN32-0KG0 and how do I get a price?","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 price and lead time."},{"question":"What is 3VA2040-5HN32-0KG0's interrupting capacity at 240 V?","answer":"187 kA at 240 VAC. At 415/440 V it is 121 kA, at 500 V it is 75.6 kA, and at 690 V it is 3 kA."},{"question":"Does this MCCB include a shunt trip?","answer":"Yes. It ships with a factory-integrated shunt trip (STL) auxiliary release, plus one auxiliary switch and one trip alarm switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-5HN32-0KG0","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/3VA2040-5HN32-0KG0 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}}