{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF42-0HH0, molded case circuit breaker, 4-pole, 200 A, TM240 thermal-magnetic release, 121 kA at 240 V, shunt trip, IP40 front.","salesMarkdown":"## MCCB with thermal-magnetic release and shunt trip Its TM240 thermal-magnetic release provides overload and short-circuit protection up to 200 A continuous current at 40 °C, with a thermal derating curve that drops to 176 A at 70 °C ambient — per the datasheet, the full thermal profile is 200 A at 40/45/50 °C, 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. The interrupting capacity reaches 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V, giving the site electrical engineer clear selectivity headroom for fault coordination downstream. ## Integrated shunt trip and auxiliary switch complement The shunt trip release design is per the 3VA9688-0BL30 accessory. The IP40 front protection suits enclosed panel mounting, not washdown environments. ## Mounting dimensions and panel fit The 3VA1220-4EF42-0HH0 measures 70 mm depth, 140 mm width, and 158 mm height. The 4-pole width of 140 mm is standard for this frame size; the panel OEM wireman should verify DIN-rail or screw-mount compatibility with the existing enclosure fill factor. The 70 mm depth leaves clearance for rear-access wiring in typical 200 mm deep enclosures.","metaTitle":"Siemens 3VA1220-4EF42-0HH0 SENTRON MCCB, 200A, 4-Pole, 121kA","metaDescription":"Siemens 3VA1220-4EF42-0HH0 SENTRON molded case circuit breaker, 200 A rated, 4-pole, TM240 release, 121 kA at 240 V. Active production. 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":"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":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"Yes","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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","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":"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=568417&mlfb=3VA1220-4EF42-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1220-4EF42-0HH0 at different voltages?","answer":"The interrupting 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, per the manufacturer's ratings."},{"question":"What are the mounting dimensions of 3VA1220-4EF42-0HH0?","answer":"The MCCB measures 70 mm depth, 140 mm width, and 158 mm height."},{"question":"Where can I buy 3VA1220-4EF42-0HH0 and how is it quoted?","answer":"This part is sourced through independent distribution channels. Availability and current pricing are confirmed at quote time against an RFQ — submit a request for a firm quote on your volume."},{"question":"What auxiliary contacts and releases does 3VA1220-4EF42-0HH0 include?","answer":"It includes a factory-integrated shunt trip release (STL) for remote tripping, plus 2 auxiliary switches and 1 trip alarm switch (HQ configuration). No undervoltage release or communication module is fitted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0HH0","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/3VA1220-4EF42-0HH0 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}}