{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-7JP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-7JP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-7JP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7JP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-7JP32-0AA0, molded case circuit breaker, 3-pole, 25 A, ETU550 electronic trip unit, breaking capacity 330 kA at 240 V.","salesMarkdown":"## SENTRON 3VA2125-7JP32-0AA0 — 25 A MCCB with ETU550 The Siemens SENTRON 3VA2125-7JP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That matters when you need selectivity downstream of a larger feeder or want to coordinate with upstream relays without sacrificing nuisance-trip margin. Breaking capacity is the headline here: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3.7 kA at 690 V. Those numbers put it in the high-interrupting category — it clears faults up to 330 kA without venting or cascading upstream, which simplifies panel SCCR calculations in high-capacity distribution boards. Communication function is onboard, so you can integrate it into a higher-level monitoring system without an external module. ## What the ETU550 trip unit gives you Unlike a thermal-magnetic breaker, the ETU550 lets you dial in the short-time pickup and delay, which is what you need for selective coordination in a multi-level distribution system. It also supports communication for remote monitoring of load current and trip events, though the exact protocol (PROFIBUS, PROFINET, Modbus) depends on the communication module fitted — the base breaker has the communication function enabled, but the specific interface card is ordered separately.","metaTitle":"Siemens 3VA2125-7JP32-0AA0 SENTRON MCCB, 25 A, 3-Pole, ETU55","metaDescription":"Siemens SENTRON 3VA2125-7JP32-0AA0 molded case circuit breaker, 25 A continuous, 3-pole, ETU550 trip unit. Breaking capacity 330 kA at 240 V. Current lifecycle stage. Quoted to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.7 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"25 A","at 60 °C":"25 A","at 65 °C":"25 A","at 70 °C":"25 A","Depth [In]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 in","Trip Indicator":"No","Number Of Poles":"3","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"0.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"25 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU550","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"300 A","Adjustable response value current / li min.":"38 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Max. rated operational current of the frame size":"160 A","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/641a6843e8dc2f758bb6426196efa871.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=62152&mlfb=3VA2125-7JP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7JP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-7JP32-0AA0 and how is it quoted?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or prices are published here."},{"question":"What is the breaking capacity of 3VA2125-7JP32-0AA0 at 415 V?","answer":"242 kA at 415 V, same as at 440 V. At 240 V it reaches 330 kA, and at 500 V it's 187 kA."},{"question":"Does 3VA2125-7JP32-0AA0 have communication capability?","answer":"Yes, the communication function is enabled on this breaker. The specific communication module (e.g., PROFIBUS, PROFINET, Modbus) is ordered separately and plugs into the breaker's accessory slot."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-7JP32-0AA0","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/3VA2125-7JP32-0AA0 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}}