{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-4GD46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-4GD46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-4GD46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-4GD46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1 series, molded case circuit breaker (MCCB), 4-pole, 20 A rated continuous current, TM210 thermal-magnetic release, breaking capacity 121 kA at 240 V AC, IP40 front protection.","salesMarkdown":"Its interrupting capacity varies with system voltage: 121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a site electrical engineer planning coordination, the 121 kA at 240 V gives substantial headroom for high-fault panels, but the drop to 11.9 kA at 500 V means the available fault current at that voltage must be verified against the breaker's rating before committing the BOM line. ## Thermal derating and continuous current At 60 °C and 65 °C it derates to 19 A, and at 70 °C it stays at 19 A. The 4-pole width (101.6 mm) is standard for a 4-pole MCCB in this frame size; it occupies four 25 mm module positions on a DIN rail. The N-conductor protection is rated at 100 %, meaning the neutral pole is fully rated and switches with the phase poles.","metaTitle":"Siemens 3VA1120-4GD46-0AA0 SENTRON MCCB, 20A, 4-Pole, 121kA","metaDescription":"Siemens 3VA1120-4GD46-0AA0 SENTRON molded case circuit breaker, 20A rated, 4-pole, TM210 release. Breaking capacity 121kA at 240V, 76kA at 415V. Current lifecycle stage, available","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":"121 kA","at 415 V":"76 kA","at 440 V":"53 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"20 A","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]":"2.8 in","Width [in]":"4 in","Height [in]":"5.1 in","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","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":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"20 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM210","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 DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"20 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"320 A","Adjustable response value current / lr min.":"20 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=376404&mlfb=3VA1120-4GD46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-4GD46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1120-4GD46-0AA0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is the breaking capacity of 3VA1120-4GD46-0AA0 at different voltages?","answer":"Breaking capacity is 121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, and 11.9 kA at both 500 V and 690 V."},{"question":"What type of release does 3VA1120-4GD46-0AA0 use?","answer":"It uses a TM210 thermal-magnetic release, which is a fixed, non-adjustable overcurrent release design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-4GD46-0AA0","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/3VA1120-4GD46-0AA0 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}}