{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-3GF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-3GF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-3GF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3GF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-3GF46-0AA0, molded case circuit breaker, 4-pole, 25 A, TM240 thermal-magnetic release, line protection design, IP40 front protection, current lifecycle stage.","salesMarkdown":"## Rated current and breaking capacity — what they mean for panel coordination The Siemens 3VA1125-3GF46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for a continuous current of 25 A at 40 °C ambient, with the same 25 A rating holding through 50 °C before a mild derate begins at 55 °C (24 A) and 65 °C (23 A). That thermal profile means the breaker carries its full nameplate current in most ventilated enclosures without forced cooling — useful when the panel runs warm but stays below 50 °C. The interrupting capacity is specified at multiple system voltages: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 4-pole MCCB on a 415 V three-phase network, the 52.5 kA figure gives substantial fault-current headroom above typical utility fault levels, which simplifies selective coordination with downstream breakers. ## TM240 release and line protection design The overcurrent release is designated TM240 — a thermal-magnetic type with a fixed thermal pickup and magnetic trip calibrated for the 25 A frame. Physical footprint: 130 mm height, 101.6 mm width, 70 mm depth. The 101.6 mm width (4 inches) is the standard 4-pole MCCB width in the SENTRON 3VA platform, matching the DIN-rail or mounting-plate cutout pattern used across the 3VA1 frame family. Depth of 70 mm (2.76 in) means it protrudes less from the mounting surface than older SENTRON or 3VF series breakers, which helps in shallow enclosures.","metaTitle":"Siemens 3VA1125-3GF46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 75.6","metaDescription":"Siemens 3VA1125-3GF46-0AA0 SENTRON molded case circuit breaker, 25 A rated, 4-pole, TM240 release. Breaking capacity 75.6 kA at 240 V. Current lifecycle stage. Available to order a","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Maximum":"25 A","Minimum":"25 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24 A","at 60 °C":"24 A","at 65 °C":"23 A","at 70 °C":"23 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"8.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","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","design of the N-conductor protection":"100%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 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":"0","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7af4e766b0ffebdcf47b67efb3ee714a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=425356&mlfb=3VA1125-3GF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3GF46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 3VA1125-3GF46-0AA0 at 415 V?","answer":"The breaking capacity is 52.5 kA at 415 V. It also carries ratings of 75.6 kA at 240 V, 32 kA at 440 V, and 11.9 kA at 500 V and 690 V."},{"question":"What are the physical dimensions of this MCCB?","answer":"Height 130 mm, width 101.6 mm (4 in), depth 70 mm (2.76 in). The 4-pole width matches the standard SENTRON 3VA1 frame cutout."},{"question":"Where can I buy the 3VA1125-3GF46-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for this breaker?","answer":"As a SENTRON series MCCB, the 3VA1125-3GF46-0AA0 carries the standard Siemens compliance documentation including CE marking for the European market. Specific RoHS, REACH, and UL file details are available in the manufacturer's declaration package upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-3GF46-0AA0","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/3VA1125-3GF46-0AA0 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}}