{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2025-5HM46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2025-5HM46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2025-5HM46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2025-5HM46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2025-5HM46-0AA0, 4-pole molded case circuit breaker, 25 A rated, 187 kA breaking capacity at 240 V, line protection design with ground-fault monitoring.","salesMarkdown":"## SENTRON 3VA2025-5HM46-0AA0 — 25 A 4-Pole MCCB with Ground-Fault Monitoring Its 187 kA breaking capacity at 240 V AC handles high-fault scenarios typical of transformer-fed switchboards, while the 121 kA rating at 415/440 V covers common European and North American line voltages. The 3 kA at 690 V means it's not intended for 690 V motor circuits — that's a fault-current floor, not a normal operating point. This breaker integrates summation-current ground-fault monitoring on the L+N conductors, so it detects leakage without a separate GFCI module — a space-saver in panels where ground-fault protection is required by code or process safety. The 0.84 W maximum power loss keeps heat rise minimal in a crowded enclosure. The 4-pole design covers three-phase plus neutral, common for main incomers or feeder breakers in 400/230 V distribution. That's unusual for an MCCB; most thermal-magnetic breakers start dropping below 40 °C. The 800 V rated insulation voltage means it's safe on 480/277 V and 600/347 V systems with margin. The adjustable thermal trip range (15 A minimum to 25 A full-scale) lets you fine-tune the overload protection for the actual load without changing the breaker — useful when a panel feeds multiple motor starters and the exact load current isn't known until commissioning. If you need remote trip or status feedback, you'll add an external shunt trip or auxiliary contact block.","metaTitle":"Siemens 3VA2025-5HM46-0AA0 SENTRON MCCB, 4-Pole, 25 A, 187 k","metaDescription":"Siemens SENTRON 3VA2025-5HM46-0AA0 molded case circuit breaker, 4-pole, 25 A rated, 187 kA breaking capacity at 240 V. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 mm","Height":"181 mm","Maximum":"300 A","Minimum":"38 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"3 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]":"5.51 in","Height [In]":"7.13 in","Initial Value":"15 A","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"25 A","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":"0.84 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","Continuous Current / Rated Value":"25 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 100%","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"100 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"double-sided box terminal","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=333790&mlfb=3VA2025-5HM46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2025-5HM46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. The 3 kA at 690 V is a low fault-current rating — this breaker is not suited for high-fault 690 V applications."},{"question":"What are the physical dimensions of the 3VA2025-5HM46-0AA0?","answer":"86 mm deep, 140 mm wide, 181 mm high. It fits the standard SENTRON 4-pole MCCB mounting footprint."},{"question":"Does this breaker include ground-fault protection?","answer":"Yes, it has summation-current ground-fault monitoring on the L+N conductors, so it detects leakage current without requiring a separate GFCI module."},{"question":"How do I get current pricing and availability for the 3VA2025-5HM46-0AA0?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2025-5HM46-0AA0","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/3VA2025-5HM46-0AA0 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}}