{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA molded case circuit breaker, 3VA1220-4EF42-0AE0, 4-pole, 200 A rated continuous current, TM240 thermal-magnetic overcurrent release, line protection version.","salesMarkdown":"The overcurrent release is a TM240 thermal-magnetic type — thermal for overload protection, magnetic for short-circuit. No electronic trip unit, no communication module, no undervoltage or shunt release fitted from the factory. This is a straight electromechanical breaker for applications that do not need adjustable trip curves or remote signaling beyond the four HQ auxiliary switches it does carry. ## Interrupting capacity — what the voltages mean in practice This breaker delivers 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V. For a 200 A frame, those are high-interrupting ratings — the 240 V figure covers most North American 120/240 V split-phase or 277/480 V wye secondary faults with headroom, while the 415 V and 440 V numbers suit European and Asian 400 V class systems. The 690 V rating is useful for industrial 600 V class or certain renewable inverter outputs where fault current can be high. ## Thermal derating — not a flat 200 A at every ambient Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. ## Panel fit and auxiliary contacts Four auxiliary switches (HQ type) are built in. These are form-C contacts rated for signaling breaker status (open/closed/tripped) to a PLC or indicator lamp. No additional aux contact block needed unless you require more than four.","metaTitle":"Siemens 3VA1220-4EF42-0AE0 SENTRON MCCB, 200 A, 4-Pole, TM24","metaDescription":"Siemens 3VA1220-4EF42-0AE0 SENTRON molded case circuit breaker, 200 A rated continuous current, 4-pole, TM240 thermal-magnetic trip, interrupting up to 121 kA at 240 V. Active prod","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 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":"No","Number of poles":"4","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":"4 auxiliary switches 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","Design of the N-conductor protection":"Without","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":"600 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":"4","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=568401&mlfb=3VA1220-4EF42-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AE0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-4EF42-0AE0 and get a price?","answer":"This part is 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 quote."},{"question":"What compliance documentation does this MCCB carry?","answer":"As a Siemens SENTRON 3VA series breaker, it is designed to meet IEC 60947-2 and relevant UL/CSA standards for molded case circuit breakers. RoHS and REACH declarations are available from Siemens documentation. The rated insulation voltage of 800 V and the interrupting ratings at 240 V through 690 V confirm its IEC/UL coverage for those voltage classes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AE0","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/3VA1220-4EF42-0AE0 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}}