{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-5EF36-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-5EF36-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-5EF36-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF36-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-5EF36-0BH0, 3-pole molded case circuit breaker, 25 A rated continuous current (Iu), TM240 thermal-magnetic release, 187 kA interrupting at 240 V, line protection version with undervoltage release and 2 aux + 1 alarm switch.","salesMarkdown":"Its 25 A rated continuous current (Iu) holds flat from 40 °C through 50 °C, then derates to 24 A at 55 °C and 22.5 A at 70 °C — so if your enclosure runs hot, you size the load at the 70 °C figure, not the nameplate 25 A. The interrupting ratings are the real story here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. At 690 V the 17 kA still covers most industrial motor branch circuits. The auxiliary contact package includes 2 aux switches plus a separate trip alarm switch (HQ), giving you both position feedback and fault indication without adding external relays. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON panelboards and distribution blocks without re-drilling. The integrated undervoltage release (UVR) and the 2 aux + 1 alarm switch are factory-fitted in this order code variant. If your BOM calls for a line-protection MCCB with UVR and auxiliary contacts already wired, this is the turnkey variant — no separate accessory ordering or field assembly needed.","metaTitle":"Siemens 3VA1125-5EF36-0BH0 SENTRON MCCB, 25 A, 187 kA at 240","metaDescription":"Siemens 3VA1125-5EF36-0BH0 SENTRON molded case circuit breaker, 25 A rated, 187 kA breaking at 240 V. 3-pole, TM240 release, undervoltage release. Active production, available to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24 A","at 60 °C":"23.5 A","at 65 °C":"23 A","at 70 °C":"22.5 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":"25 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":"3VA9608-0BB11","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.":"25 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Adjustable response value current / lr min.":"18 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":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=251144&mlfb=3VA1125-5EF36-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF36-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1125-5EF36-0BH0 and get a price?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA series is designed to meet IEC 60947-2 and UL 489 standards for molded case circuit breakers. Siemens typically provides RoHS and REACH declarations, plus a CE declaration of conformity. Specific documentation is issued with the shipment or available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-5EF36-0BH0","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/3VA1125-5EF36-0BH0 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}}