{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2325-5HN32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2325-5HN32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2325-5HN32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2325-5HN32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2325-5HN32-0AJ0, molded case circuit breaker, 3-pole, 250 A rated continuous current, ETU350 electronic trip unit, line protection version, IP40 front.","salesMarkdown":"## Breaking capacity across the voltage range The 3VA2325-5HN32-0AJ0: The interrupting rating is what decides whether this breaker clears a fault without welding its contacts or venting arc gas into the enclosure. At 240 V it delivers 187 kA; at 415 V and 440 V it holds 121 kA; at 500 V it still manages 75.6 kA; at 690 V it drops to 17 kA. That spread covers most industrial distribution voltages in North America (277/480 V) and Europe (400/690 V), but the 690 V figure means you need to verify coordination if the transformer secondary is above 500 V. ## Thermal derating and panel loading Rated continuous current is 250 A up to 50 °C ambient. Above that, the breaker derates: 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C. If the panel internal temperature runs hot — say, a packed enclosure with drives — you lose 25 A by the time you hit 70 °C. Factor that into the load schedule; don't assume the nameplate 250 A holds in a sealed cabinet. ## Trip unit and auxiliary contacts The ETU350 electronic trip unit provides adjustable overload and short-circuit protection curves without needing a separate power supply — it's self-powered from the line current. The breaker ships with 2 auxiliary switches plus 1 trip alarm switch (HP type), which is enough to signal the breaker state to a PLC or remote I/O without adding a separate aux block. No undervoltage release, no ground-fault monitoring, no communication module on this variant; if you need those, the 3VA2 family has other order codes with those options pre-installed. ## Physical fit and mounting Dimensions are 248 mm high, 138 mm wide, 110 mm deep. The 138 mm width is the standard 3-pole MCCB footprint for this class — it fits the SENTRON panelboard mounting pattern and the common DIN-rail adapter plates. IP40 on the front means it's protected against tools and wires >1 mm, but not against dust ingress; keep it inside a sealed enclosure if the environment is dirty.","metaTitle":"Siemens 3VA2325-5HN32-0AJ0 SENTRON MCCB 250A, 3-Pole, ETU350","metaDescription":"Siemens SENTRON 3VA2325-5HN32-0AJ0 molded case circuit breaker, 250 A rated continuous current, 3-pole, ETU350 electronic trip unit, 187 kA at 240 V. Current production. Quoted to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"240 A","at 60 °C":"235 A","at 65 °C":"230 A","at 70 °C":"225 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"37.5 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2325-5HN32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","Design of the overcurrent release":"ETU350","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"250 A","Adjustable response value current / li max.":"3 000 A","Adjustable response value current / li min.":"3 000 A","Adjustable response value current / lr min.":"100 A","Adjustable response value current / Isd max.":"0 A","Adjustable response value current / Isd min.":"0 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"400 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ad4b9644ff5db6bf2edb958ed105bffe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=89285&mlfb=3VA2325-5HN32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2325-5HN32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2325-5HN32-0AJ0 at 415 V?","answer":"121 kA at 415 V. The same rating applies at 440 V. At 240 V it reaches 187 kA, at 500 V it drops to 75.6 kA, and at 690 V it is 17 kA."},{"question":"What trip unit does 3VA2325-5HN32-0AJ0 use?","answer":"It uses the ETU350 electronic trip unit, self-powered from line current, configured for line protection (not motor or generator protection)."},{"question":"How do I get current pricing and availability for 3VA2325-5HN32-0AJ0?","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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2325-5HN32-0AJ0","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/3VA2325-5HN32-0AJ0 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}}