{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1040-2ED32-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1040-2ED32-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1040-2ED32-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1040-2ED32-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1040-2ED32-0KC0, 3-pole molded case circuit breaker, 40 A rated current, 52.5 kA breaking capacity at 240 VAC, line protection design with shunt trip release.","salesMarkdown":"## Siemens 3VA1040-2ED32-0KC0 — 40 A SENTRON MCCB with Shunt Trip Its breaking capacity hits 52.5 kA at 240 VAC and 32 kA at 415 VAC — enough to handle high-fault utility feeds or transformer secondaries without cascading upstream. The 52.5 kA interrupting rating at 240 VAC drops to 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 500 V and 690 V. That means on a 400 V class system the breaker clears 32 kA symmetrical fault current — sufficient for most industrial service entrances and panelboard mains. The continuous current rating holds at 40 A from 40 °C through 50 °C ambient, then derates to 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. ## Panel Fit and Auxiliary Configuration The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a 3-pole MCCB footprint that fits standard Siemens SENTRON distribution panels and switchboard chassis. The two HQ auxiliary switches (form C) provide position-indication contacts for remote monitoring or PLC inputs. The shunt trip release lets a safety relay or emergency-stop circuit drop the breaker without a manual handle operation. No undervoltage release is fitted, so the breaker stays closed through a control-power loss unless the shunt trip is explicitly triggered.","metaTitle":"Siemens 3VA1040-2ED32-0KC0 SENTRON MCCB, 3-Pole, 40 A, 52.5","metaDescription":"Siemens 3VA1040-2ED32-0KC0 SENTRON molded case circuit breaker, 3-pole, 40 A rated at 40 °C, breaking capacity 52.5 kA at 240 VAC. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 kA","at 500 V":"7.5 kA","at 690 V":"7.5 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10402ED320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM210","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","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","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"B","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=458843&mlfb=3VA1040-2ED32-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1040-2ED32-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1040-2ED32-0KC0 at different voltages?","answer":"At 240 VAC the breaker interrupts 52.5 kA, at 415 VAC it interrupts 32 kA, at 440 VAC 13.6 kA, and at 500 V and 690 VAC it interrupts 7.5 kA."},{"question":"Where can I buy 3VA1040-2ED32-0KC0 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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1040-2ED32-0KC0","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/3VA1040-2ED32-0KC0 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}}