{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF32-0AH0, molded case circuit breaker, 3-pole, 200 A, TM240 thermal-magnetic release, 121 kA at 240 V, IP40 front.","salesMarkdown":"That TM240 designation means the thermal trip is fixed at 200 A and the magnetic short-circuit pickup is adjustable — so on a motor branch or a feeder, you set the magnetic threshold to ride through inrush without nuisance tripping, while the thermal element handles overloads. The breaking capacity at 240 V hits 121 kA, at 415 V it's 75.6 kA, at 440 V it drops to 25 kA, and at 690 V it's 11.9 kA — these are the SCCR values the panel builder uses for the upstream fault study. For a 200 A frame, that 121 kA at 240 V gives serious headroom on a low-voltage switchboard or a transformer secondary. The breaker carries a 2-auxiliary-switch plus 1-trip-alarm-switch HQ configuration, which means the panel gets both a status mirror and a dedicated alarm contact that closes only on a trip event — useful for a remote SCADA or a local beacon without extra interposing relays. ## Thermal derating — the real-world current limit At 55 °C it derates to 194 A, at 60 °C to 188 A, at 65 °C to 182 A, and at 70 °C to 176 A. Dimensions are 105 mm wide, 158 mm high, 70 mm deep. That 105 mm width on a 3-pole 200 A frame is standard for SENTRON 3VA — it fits the same cutout and bus-bar spacing as other 3VA breakers in the 200 A class. The IP40 front protection means it's splash-proof from the front but not sealed; install it inside a panel with an IP54 or better enclosure if the environment is wet or dusty.","metaTitle":"Siemens 3VA1220-4EF32-0AH0 SENTRON MCCB, 200 A, 121 kA at 24","metaDescription":"Siemens 3VA1220-4EF32-0AH0 SENTRON molded case circuit breaker, 200 A rated continuous current, 3-pole, TM240 release, breaking capacity 121 kA at 240 V. Active production, sourced","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":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=568378&mlfb=3VA1220-4EF32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-4EF32-0AH0 and how is it quoted?","answer":"This part is sourced to order through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3VA1220-4EF32-0AH0?","answer":"Rated continuous current Iu is 200 A, with a TM240 thermal-magnetic release. Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V. The breaker is 3-pole with a 2-auxiliary-switch plus 1-trip-alarm-switch HQ configuration."},{"question":"Will 3VA1220-4EF32-0AH0 drop into a panel specified for 3VA1010-2ED42-0AE0?","answer":"Both are SENTRON 3VA breakers sharing the same 105 mm width and 158 mm height footprint, so the cutout and bus-bar spacing are identical. The depth is 70 mm on this unit — check that the enclosure depth and cable bending radius accommodate it. The terminal arrangements and auxiliary contact options differ, so verify the wiring plan against the existing panel layout before committing."},{"question":"What compliance documentation does Siemens provide for 3VA1220-4EF32-0AH0?","answer":"Siemens SENTRON 3VA breakers are typically covered by a Declaration of Conformity (CE/UKCA), UL/CSA recognition, and RoHS/REACH compliance declarations. The specific certificates and declarations for this order code are available on request at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0AH0","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/3VA1220-4EF32-0AH0 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}}