{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5EF32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5EF32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5EF32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-5EF32-0BH0, 3-pole molded case circuit breaker, 250 A rated current, 187 kA interrupting capacity at 240 VAC, line protection design with undervoltage release.","salesMarkdown":"## Siemens SENTRON 3VA1225-5EF32-0BH0 — 250 A MCCB with High Interrupting Capacity The Siemens SENTRON 3VA1225-5EF32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C ambient, designed for line protection in distribution panels. It carries a 187 kA interrupting capacity at 240 VAC — that means it can safely clear a fault current up to 187,000 amps without welding contacts or rupturing the case, which is critical for high-fault installations like transformer secondaries or large motor control centers. At 415 VAC the interrupting rating is 121 kA, and it still holds 75.6 kA at 440 VAC, 30 kA at 500 VAC, and 17 kA at 690 VAC, covering most industrial voltage levels. The 250 A rating holds flat from 40 °C to 50 °C ambient. Above that, derate linearly: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. Maximum power loss is 59.5 W, which matters for enclosure ventilation calculations. The 3VA1225-5EF32-0BH0 measures 105 mm wide, 158 mm high, and 70 mm deep. That 105 mm width is a standard 3-pole MCCB footprint — it fits the same panel cutout and busbar spacing as other SENTRON 3VA frame breakers. The 70 mm depth means it projects less than 3 inches from the mounting surface, leaving room for wiring gutters or a shallow enclosure. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.","metaTitle":"Siemens 3VA1225-5EF32-0BH0 SENTRON MCCB, 250 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA1225-5EF32-0BH0 molded case circuit breaker, 250 A, 3-pole, 187 kA interrupting at 240 VAC. Current lifecycle. RFQ for pricing and availability.","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"30 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 A","at 60 °C":"237 A","at 65 °C":"230 A","at 70 °C":"223 A","Depth [In]":"2.76 in","Width [In]":"4.13 in","Height [In]":"6.22 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"59.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12255EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","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":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=568668&mlfb=3VA1225-5EF32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1225-5EF32-0BH0 at 240 V?","answer":"The interrupting capacity is 187 kA at 240 VAC, 121 kA at 415 VAC, 75.6 kA at 440 VAC, 30 kA at 500 VAC, and 17 kA at 690 VAC."},{"question":"Where can I buy 3VA1225-5EF32-0BH0 and what is the lead time?","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 lead time and price."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5EF32-0BH0","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/3VA1225-5EF32-0BH0 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}}