{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-5EF32-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-5EF32-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-5EF32-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF32-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-5EF32-0AG0, molded case circuit breaker, 3-pole, 25 A, 187 kA interrupting at 240 VAC, line protection, TM240 release, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1125-5EF32-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current at 40 °C, with a TM240 thermal-magnetic overcurrent release. Its interrupting capacity reaches 187 kA at 240 VAC, 121 kA at 415 VAC, and 75.6 kA at 440 VAC — figures that place it in the high-breaking-capacity tier of the 3VA platform, sized for main feeder or high-fault branch protection in industrial switchboards. ## What the interrupting ratings mean for panel coordination The TM240 release is fixed, not adjustable for long-time pickup, but the thermal memory tracks prior heating — useful on motor-starting duty where repeated inrush could nuisance-trip a plain thermal breaker. ## Mounting and integration notes The 76.2 mm width (roughly 3 inches) and 70 mm depth fit standard 3VA panel cutouts and bus-bar centers.","metaTitle":"Siemens 3VA1125-5EF32-0AG0 SENTRON MCCB, 25 A, 187 kA at 240","metaDescription":"Siemens SENTRON 3VA1125-5EF32-0AG0 molded case circuit breaker, 25 A rated, 187 kA interrupting at 240 VAC. Current production. 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":"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":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HP","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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","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":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=59283&mlfb=3VA1125-5EF32-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF32-0AG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1125-5EF32-0AG0 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 the time of quote."},{"question":"What is the closest functional second-source to 3VA1125-5EF32-0AG0?","answer":"The 3VA1010-2ED32-0JA0 is a smaller-frame 3VA sibling (10 A, lower interrupting capacity) and will not drop into the same panel cutout without bus-bar and mounting modifications — the 3VA1125 frame is physically larger and carries higher SCCR ratings."},{"question":"What compliance documentation does this brand provide for 3VA1125-5EF32-0AG0?","answer":"Siemens SENTRON MCCBs typically carry UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications, plus RoHS and REACH declarations. Specific certificate copies are provided with the RFQ documentation package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-5EF32-0AG0","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/3VA1125-5EF32-0AG0 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}}