{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1025-4ED32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1025-4ED32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1025-4ED32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1025-4ED32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1025-4ED32-0AA0, molded case circuit breaker, 3-pole, 25 A (40 °C), 320 A frame, TM210 thermal-magnetic trip, line protection.","salesMarkdown":"## SENTRON 3VM1 — 25 A MCCB with 320 A Frame, TM210 Trip The Siemens 3VM1025-4ED32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for line-protection duty, carrying a continuous current of 25 A at 40 °C ambient on a 320 A frame size — meaning the thermal-magnetic trip unit (TM210) governs the load current while the frame provides headroom for high-fault interruption without mechanical stress on the mechanism. Three-pole construction, rated insulation voltage of 800 V, and interrupting capacity that scales with system voltage: 121 kA at 240 V, 76 kA at 415 V, 40 kA at 440 V, and 12 kA at 500 V — a curve that tells you this breaker is sized for low-voltage distribution where the available fault current is highest at the transformer secondary and drops as you move downstream. The TM210 designation indicates a fixed thermal-magnetic trip with a 10× rated-current magnetic pickup, typical for feeder and branch-circuit protection in panelboards and motor control centers where coordination with downstream devices matters more than adjustable instantaneous settings. ## Thermal Derating and Power Dissipation Rated current holds flat at 25 A from 40 °C through 50 °C, then begins a gentle derating: 24 A at 55 °C and 60 °C, 23 A at 65 °C and 70 °C — a curve that matters when the breaker is packed into a high-density panel where internal ambient can push past 50 °C without forced ventilation. Maximum power loss is 9 W at rated load — a figure that feeds into the panel thermal budget, especially when multiple breakers share a common enclosure and the cumulative heat drives the derating calculation. Width 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — a 3-pole MCCB footprint that fits standard Siemens SENTRON mounting bases and busbar systems; the 70 mm depth is shallow enough for 200 mm deep enclosures without crowding the gland plate.","metaTitle":"Siemens 3VM1025-4ED32-0AA0 SENTRON MCCB, 25A, 320A Frame, 3-","metaDescription":"Siemens 3VM1025-4ED32-0AA0 SENTRON molded case circuit breaker, 25A rated at 40°C, 320A frame, 3-pole, TM210 trip. Active production. Sourced to order. 121kA at 240V.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","title":"3VM1025-4ED32-0AA0","Height":"130 mm","Maximum":"320 A","Minimum":"1 s","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"40 kA","at 500 V":"12 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]":"3 in","Height [In]":"5.12 in","description":"circuit breaker 3VM1 IEC frame 100 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection TM210, FTFM, In=25A overload protection Ir=25A, not adjustable short-circuit protection Ii=12.8 x In nut keeper kit","Trip Indicator":"No","Number Of Poles":"3","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":"9 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":"TM210","Design Of Short-Circuit Protection":"For switching capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available under Service & Support in the last chapter","protection class IP / on the front":"IP40","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":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Mechanical Service Life (Operating Cycles) / Typical":"12 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a01c343e64219cb56d770b674b9211ef.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575010&mlfb=3VM1025-4ED32-0AA0"},"ai":{"faq":[{"question":"What are the interrupting ratings at common system voltages?","answer":"121 kA at 240 V, 76 kA at 415 V, 40 kA at 440 V, and 12 kA at 500 V — these are the symmetrical RMS values that determine whether this breaker can clear a fault at the available short-circuit current of the installation point."},{"question":"What does the TM210 trip designation mean?","answer":"TM210 means a fixed thermal-magnetic trip unit with a 10× rated-current magnetic pickup (instantaneous trip at 250 A for this 25 A breaker), designed for line protection in distribution panels where coordination with downstream devices is managed through selective curves."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1025-4ED32-0AA0","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/3VM1025-4ED32-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}