{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-5GF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-5GF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-5GF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-5GF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-5GF46-0AA0, 4-pole molded case circuit breaker, 20 A rated, TM240 thermal-magnetic release, 187 kA interrupting at 240 V.","salesMarkdown":"The Siemens 3VA1120-5GF46-0AA0 is a 4-pole SENTRON molded case circuit breaker (MCCB) rated 20 A continuous at 45 °C, with a TM240 thermal-magnetic release. The interrupting ratings tell the story: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V or 690 V. The TM240 release has an adjustable li max of 320 A, so you can dial the magnetic trip to coordinate downstream. This breaker holds 20 A from 45 °C up to 55 °C without derating. At 60 °C it steps to 19 A, and holds that through 70 °C. That's a tight thermal curve — you lose only 5 % of capacity over the full operating range. The maximum power loss is 12 W, which is low for a 4-pole MCCB at this frame size. Dimensions are 101.6 mm wide, 130 mm tall, 70 mm deep — a standard 4-pole MCCB footprint for panel mounting. The N-conductor protection is rated 100 %, meaning the neutral pole is fully rated, not reduced. A motor drive option is available as an accessory for remote tripping or charging. No communication function onboard — this is a standalone breaker, not a smart metering device.","metaTitle":"Siemens 3VA1120-5GF46-0AA0 SENTRON MCCB, 20 A, 4-Pole, 187 k","metaDescription":"Siemens 3VA1120-5GF46-0AA0 SENTRON molded case circuit breaker, 20 A, 4-pole, TM240 release, 187 kA at 240 V. Active production. Sourced to order. RFQ for pricing.","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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"20 A","at 60 °C":"19 A","at 65 °C":"19 A","at 70 °C":"19 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"12 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"20 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"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%","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Max. rated operational current of the frame size":"160 A","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a158da7df87c3a4ccd347a71d3c4ba75.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=397030&mlfb=3VA1120-5GF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-5GF46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key interrupting ratings for 3VA1120-5GF46-0AA0?","answer":"It interrupts 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V."},{"question":"Will 3VA1120-5GF46-0AA0 drop into a panel specified for 3VA1020-3ED36-0AA0?","answer":"Both are 4-pole SENTRON MCCBs with similar frame dimensions, but the 3VA1120-5GF46-0AA0 carries a TM240 release and higher interrupting ratings (187 kA vs lower on the 3VA1020 variant). Verify the release curve and SCCR coordination before swapping — the physical footprint is compatible, but the protection settings differ."},{"question":"What is the depth of 3VA1120-5GF46-0AA0?","answer":"The depth is 70 mm (2.76 in)."},{"question":"Where can I buy 3VA1120-5GF46-0AA0 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 quote time — no stock figures or prices are listed here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-5GF46-0AA0","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/3VA1120-5GF46-0AA0 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}}