{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2025-4JQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2025-4JQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2025-4JQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2025-4JQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2025-4JQ32-0AA0, molded case circuit breaker, 3-pole, 25 A continuous, adjustable thermal-magnetic trip 38-300 A, line protection design, 121 kA at 240 V.","salesMarkdown":"## MCCB for line protection — 25 A continuous, 38-300 A adjustable trip It carries a rated continuous current of 25 A at 40-70 °C with no derating across that range, and its adjustable thermal-magnetic trip unit covers 38 A to 300 A — meaning you can dial it to protect a feeder, a motor branch, or a sub-distribution board without swapping the breaker frame. Rated insulation voltage is 800 V, and the breaking capacity runs from 121 kA at 240 V down to 3 kA at 690 V — that 121 kA figure at 240 V is what you'd check for high-fault service-entrance or industrial main-breaker applications where the available fault current is substantial. ## Integration into a panel — dimensions and mounting The breaker measures 181 mm high by 105 mm wide by 86 mm deep. That 86 mm depth is the projection from the mounting surface — factor it into gland-plate clearance and door-swing if the panel is shallow. The adjustable trip range (38 A minimum, 300 A maximum) means the same frame covers a wide spread of load sizes; you set the trip to match the conductor ampacity or the load's inrush, not the other way around. Ground-fault monitoring is built in as summation-current sensing on the line conductors — no external GFCI module needed. Communication function is present, so the breaker can report status or trip events over a bus in a monitored distribution system.","metaTitle":"Siemens 3VA2025-4JQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 38-30","metaDescription":"Siemens SENTRON 3VA2025-4JQ32-0AA0 molded case circuit breaker, 25 A continuous, 3-pole, adjustable trip 38-300 A. Breaking capacity 121 kA at 240 V. Active production. Quoted to o","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","title":"3VA2025-4JQ32-0AA0","Height":"181 mm","Maximum":"300 A","Minimum":"38 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"75.6 kA","at 500 V":"52.5 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","description":"circuit breaker 3VA2 IEC frame 100 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection ETU560, LSIG, In=25A overload protection Ir=10A...25A short-circuit protection Isd=0.6..10x In, Ii=1.5..12x In N conductor protection optionally with external current transformer, up to 160% gr.-fault prot., can be sw. off Ig=0.6... 1 x In, tg=0.05-0.8s nut keeper kit","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":"No","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":"ETU560","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":"S","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bad4573310b9deb95abc9c39de71471d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=305637&mlfb=3VA2025-4JQ32-0AA0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2025-4JQ32-0AA0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA2025-4JQ32-0AA0 at different voltages?","answer":"121 kA at 240 V, 75.6 kA at both 415 V and 440 V, 52.5 kA at 500 V, and 3 kA at 690 V — the high 240 V figure is the one to check for service-entrance or high-fault industrial mains."},{"question":"What is the adjustable trip range on this MCCB?","answer":"The thermal-magnetic trip unit adjusts from a minimum of 38 A to a maximum of 300 A, covering a wide range of feeder and branch-circuit loads from a single frame size."},{"question":"Does 3VA2025-4JQ32-0AA0 require derating in high ambient temperatures?","answer":"No — the 25 A continuous rating holds from 40 °C through 70 °C with no derating, so it's suitable for hot panels without oversizing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2025-4JQ32-0AA0","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/3VA2025-4JQ32-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}