{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF32-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF32-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF32-0AG0, molded case circuit breaker, 3-pole, 200 A rated continuous current Iu, 121 kA interrupting at 240 V, TM240 overcurrent release, line protection.","salesMarkdown":"Its 200 A rated continuous current Iu holds flat from 40 °C through 50 °C, then derates to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C — so the thermal curve matters if the breaker sits in a hot enclosure or next to other heat sources. The 121 kA interrupting rating at 240 V drops to 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V; that steep voltage-dependent curve means the available fault current at your service voltage is the number that governs selectivity and SCCR compliance, not the headline 121 kA figure. The TM240 overcurrent release is a thermal-magnetic type — fixed thermal pickup, magnetic trip adjustable. The 1 s adjustable time delay tr max. lets you coordinate downstream with smaller breakers or fuses. The 3-pole construction with 1 auxiliary switch + 1 trip alarm switch HP gives remote status for both breaker position and fault trip, which is useful for PLC or SCADA inputs without an add-on module. The auxiliary and trip alarm switch wiring exits the breaker body; plan for 1.5 mm² stranded connections per the terminal markings. ## What it does not include If you need remote trip, ground fault, or metering, you step up to the 3VA2 electronic-trip variants or add external accessories.","metaTitle":"Siemens 3VA1220-4EF32-0AG0 SENTRON MCCB, 200 A, 3-Pole, 121","metaDescription":"Siemens SENTRON 3VA1220-4EF32-0AG0 molded case circuit breaker, 200 A rated, 3-pole, 121 kA at 240 V. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 mm","Height":"158 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"25 kA","at 690 V":"11.9 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"194 A","at 60 °C":"188 A","at 65 °C":"182 A","at 70 °C":"176 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"200 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"200 A","Adjustable response value current / li max.":"2 000 A","Adjustable response value current / li min.":"1 000 A","Adjustable response value current / lr min.":"140 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1"}},"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=568377&mlfb=3VA1220-4EF32-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0AG0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VA1220-4EF32-0AG0 at 415 V?","answer":"75.6 kA at 415 V. The rating varies by voltage: 121 kA at 240 V, 25 kA at 440 V, and 11.9 kA at 690 V."},{"question":"Where can I buy 3VA1220-4EF32-0AG0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Does 3VA1220-4EF32-0AG0 include an undervoltage release or shunt trip?","answer":"No. It ships without undervoltage release, without shunt trip (voltage trigger), and without any auxiliary release. The only auxiliary contacts are the 1 auxiliary switch + 1 trip alarm switch HP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0AG0","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/3VA1220-4EF32-0AG0 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}}