{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2025-5KQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2025-5KQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2025-5KQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2025-5KQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 3VA2025-5KQ36-0AA0, 25 A, 3-pole, 187 kA interrupting at 240 V, line protection design with communication and ground-fault monitoring.","salesMarkdown":"The Siemens 3VA2025-5KQ36-0AA0 is a SENTRON 3VA2 molded case circuit breaker rated for 25 A continuous current on a 3-pole line-protection duty. The interrupting capacity hits 187 kA at 240 V — that is the headline number for fault-clearing confidence in high-available-fault-current panels — and holds 121 kA at 415/440 V, tapering to 3 kA at 690 V. Insulation voltage is rated 800 V, so it handles 480/600 V class distribution without a derating concern on the dielectric side. The 86 mm depth and 105 mm width mean it fits standard 3VA2 panel cutouts; no rewiring if the panel was laid out for the same frame family. ## Selectivity and coordination in a cold-chain panel For a refrigeration or ammonia compressor panel, the 25 A rating and 187 kA SCCR at 240 V give you headroom to coordinate downstream with smaller branch breakers without cascading. The communication function (listed as present) allows the breaker to report status to a PLC or BAS, so the maintenance team sees the trip cause remotely instead of walking a freezer aisle. ## Thermal performance across the panel ambient range The breaker holds its 25 A rating flat from 40 °C through 70 °C ambient — no derating needed in a warm enclosure near drives or transformers. Operating range is -25 °C to 70 °C, storage from -40 °C to 80 °C, so it can sit in an unheated warehouse or a freezer antechamber without issue. Maximum power loss is 0.84 W, negligible for panel thermal budgeting.","metaTitle":"Siemens 3VA2025-5KQ36-0AA0 SENTRON MCCB, 25 A, 3-Pole, 187 k","metaDescription":"Siemens 3VA2025-5KQ36-0AA0 SENTRON molded case circuit breaker, 25 A continuous, 3-pole, 187 kA at 240 V. Current lifecycle. Quoted to order against RFQ.","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":"300 A","Minimum":"38 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":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"25 A","at 60 °C":"25 A","at 65 °C":"25 A","at 70 °C":"25 A","Depth [In]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 in","Initial Value":"15 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"25 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"0.84 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"25 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","Product Function / Grounding Protection":"Yes","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":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"double-sided box terminal","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/74cd68699406068a75c1c165afc5cefb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=104496&mlfb=3VA2025-5KQ36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2025-5KQ36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2025-5KQ36-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting capacity of 3VA2025-5KQ36-0AA0 at 240 V?","answer":"187 kA at 240 V, dropping to 121 kA at 415/440 V and 75.6 kA at 500 V."},{"question":"Will 3VA2025-5KQ36-0AA0 drop into a panel specified around 3VA2125-8KQ42-0AA0?","answer":"Both are 3VA2 frame breakers with the same 86 mm depth and 105 mm width, so the cutout and bus connections are compatible. However, the 3VA2025-5KQ36-0AA0 is a 25 A line-protection variant with ground-fault monitoring; the 3VA2125-8KQ42-0AA0 may have a different trip unit or accessories. Check the trip curve and auxiliaries before swapping."},{"question":"What compliance documentation does this brand provide?","answer":"Siemens SENTRON breakers typically carry UL, IEC, CSA, and CE certifications, and are RoHS/REACH compliant. Specific documentation for 3VA2025-5KQ36-0AA0 should be available from Siemens or your distributor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2025-5KQ36-0AA0","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/3VA2025-5KQ36-0AA0 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}}