{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-6EF32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-6EF32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-6EF32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-6EF32-0DH0, molded case circuit breaker (MCCB), 3-pole, 250 A, line protection, with undervoltage release and auxiliary switches.","salesMarkdown":"That 250 A holds flat from 40 °C to 50 °C ambient, then derates gradually to 223 A at 70 °C — so in a warm panel you still have headroom down to about 223 A before the TM240 thermal-magnetic trip unit starts to drift. The interrupting ratings climb steeply with voltage: 220 kA at 240 V, 154 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. ## Integration and panel fit The breaker measures 105 mm wide × 158 mm high × 70 mm deep — a standard 3-pole MCCB footprint for the 250 A frame class. The front face carries an IP40 protection rating, so it's fine for enclosed panels but not for washdown environments. An undervoltage release (UVR) is fitted as standard — if the control voltage drops, the breaker trips immediately, which is useful for safety circuits or emergency-stop chains that need a loss-of-voltage disconnect. ## Selectivity and coordination notes The TM240 overcurrent release is a thermal-magnetic type — fixed thermal pickup for overloads, magnetic instantaneous for short-circuits. No electronic adjustment, no communication function, no phase-failure detection. That makes it a straightforward, field-reliable choice for distribution panels where you don't need remote monitoring or selective coordination curves. The trip indicator on the front gives a visual flag after a fault event, which speeds up troubleshooting on a multi-breaker lineup.","metaTitle":"Siemens 3VA1225-6EF32-0DH0 SENTRON MCCB, 250 A, 3-Pole, Line","metaDescription":"Siemens 3VA1225-6EF32-0DH0 SENTRON molded case circuit breaker, 250 A rated current, 3-pole, line protection. Breaking capacity 220 kA at 240 V. Current 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":"105 mm","Height":"158 mm","at 240 V":"220 kA","at 415 V":"154 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","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","Of The Supplied Basic Switch":"3VA12256EF320AA0","Courant permanent assigné Iu":"250 A","Design Of The Auxiliary Release":"Undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","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 IEC 81346-2":"Q","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","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 / lg min.":"1","Adjustable response value current / li max.":"2 500 A","Adjustable response value current / li min.":"1 250 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"H","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Mechanical Service Life (Switching Cycles) / Typical":"15 000","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 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"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=568820&mlfb=3VA1225-6EF32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-6EF32-0DH0 and get a price?","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."},{"question":"What are the key ratings for 3VA1225-6EF32-0DH0?","answer":"Rated continuous current (Iu) is 250 A, holding flat from 40 °C to 50 °C and derating to 223 A at 70 °C. Interrupting capacity is 220 kA at 240 V, 154 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. Insulation voltage (Ui) is 800 V. The overcurrent release is a TM240 thermal-magnetic type."},{"question":"Will 3VA1225-6EF32-0DH0 drop into a panel specified around 3VA1112-5EF32-0CA0?","answer":"Both are 3-pole SENTRON MCCBs on the same 3VA platform, so the mounting pattern and accessory interface are shared. The 3VA1225 frame is larger (105 mm wide vs the smaller frame) and rated for 250 A vs the lower-current sibling — verify the panel cutout and busbar spacing accommodate the wider footprint before swapping."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA series carries CE marking for the European market and is designed to IEC 60947-2. UL and CSA listings are standard for the platform; specific certification details for this exact order code should be confirmed from the nameplate or Siemens declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-6EF32-0DH0","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/3VA1225-6EF32-0DH0 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}}