{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5EF32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5EF32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5EF32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-5EF32-0KH0, molded case circuit breaker, 3-pole, 250 A rated continuous current (Iu), TM240 thermal-magnetic release, line protection version, 70 mm depth, 105 mm width, 158 mm height.","salesMarkdown":"The Siemens SENTRON 3VA1225-5EF32-0KH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 250 A at 40 °C through 50 °C without derating — at 55 °C it still holds 243.3 A, dropping to 223 A at 70 °C, so the thermal curve stays flat across typical panel ambient. The interrupting ratings are what decide panel SCCR: 187 kA at 240 V AC, 121 kA at 415 V AC, 36 kA at 440 V AC, and 17 kA at 690 V AC — the 415 V figure is the one most European industrial panels will reference for fault current coordination. The 3VA1225-5EF32-0KH0 measures 70 mm deep, 105 mm wide, and 158 mm high — a standard SENTRON 3VA frame size that fits DIN-rail or screw-mount panel layouts. The 105 mm width is the critical fill-factor dimension for multi-breaker rows; at 250 A continuous, it occupies the same footprint as lower-rated 3VA frames, so a panel originally laid out for a 160 A or 200 A 3VA unit will accept this breaker without re-drilling the mounting plate. The shunt trip (STL) release is factory-installed; verify the coil voltage matches the control circuit before wiring. The product designation is molded case circuit breaker under the SENTRON brand.","metaTitle":"Siemens 3VA1225-5EF32-0KH0 MCCB, 250 A, 3-Pole, Line Protect","metaDescription":"Siemens SENTRON 3VA1225-5EF32-0KH0 molded case circuit breaker, 250 A rated at 40 °C, 3-pole, line protection, TM240 release, 187 kA at 240 V. Quoted to order against RFQ.","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":"Yes","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","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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","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=568683&mlfb=3VA1225-5EF32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-5EF32-0KH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 3VA1225-5EF32-0KH0?","answer":"The 3VA1110-5EE32-0JA0 is a smaller-frame SENTRON 3VA MCCB but with a lower continuous current rating and different interrupting capacity — it will not drop into a panel specified for the 250 A 3VA1225-5EF32-0KH0 without recalculating the load and fault current requirements."},{"question":"What are the key dimensions of 3VA1225-5EF32-0KH0?","answer":"Depth is 70 mm, width is 105 mm, and height is 158 mm — a standard 3VA frame size that fits DIN-rail or screw-mount panel layouts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5EF32-0KH0","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/3VA1225-5EF32-0KH0 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}}