{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5EF32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5EF32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5EF32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-5EF32-0DH0, molded case circuit breaker, 3-pole, 250 A, line protection, TM240 release, 187 kA at 240 V.","salesMarkdown":"Its 250 A rated continuous current (Iu) holds flat from 40 °C to 50 °C, then derates to 223 A at 70 °C — so the thermal curve stays full-rated in a ventilated enclosure but needs headroom if the panel runs hot. Breaking capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. At 415 V — common for industrial three-phase — 121 kA means this breaker can interrupt a fault current that high without upstream fuses or a current-limiting reactor. That is the spec that decides whether it coordinates with the transformer or main breaker in a selective coordination study. Latching endurance is rated at 15 000 operations, which is typical for a panel main or feeder breaker that sees infrequent switching. Dimensions: 105 mm wide, 158 mm high, 70 mm deep. Depth of 70 mm leaves clearance for rear-mounted busbars or a gland plate behind the DIN rail. Front protection is IP40, so it is suited for enclosed distribution boards but not washdown zones.","metaTitle":"Siemens 3VA1225-5EF32-0DH0 SENTRON MCCB, 250 A, 3-Pole, Line","metaDescription":"Siemens 3VA1225-5EF32-0DH0 SENTRON molded case circuit breaker, 250 A rated continuous current, 3-pole, line protection, TM240 release, 187 kA at 240 V. Sourced to order against RF","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 mm","Height":"158 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"36 kA","at 690 V":"17 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243.3 A","at 60 °C":"236.5 A","at 65 °C":"229 A","at 70 °C":"223 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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","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","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","Design of the overcurrent release":"TM240","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","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.":"2 500 A","Adjustable response value current / li min.":"1 250 A","Adjustable response value current / lr min.":"175 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"250 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.":"25 x 8","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1"}},"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=568674&mlfb=3VA1225-5EF32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1225-5EF32-0DH0?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response."},{"question":"What are the key ratings of 3VA1225-5EF32-0DH0?","answer":"Rated continuous current Iu is 250 A, flat from 40 °C to 50 °C. Breaking capacity is 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. Rated insulation voltage Ui is 800 V. The overcurrent release is TM240 (thermal-magnetic). Three poles, with an undervoltage release and 2 auxiliary + 1 trip alarm switch built in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5EF32-0DH0","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/3VA1225-5EF32-0DH0 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}}