{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF32-0BH0, molded case circuit breaker, 3-pole, 200 A, TM240 release, 121 kA at 240 V, 70 mm depth.","salesMarkdown":"The Siemens SENTRON 3VA1220-4EF32-0BH0 is a 3-pole molded case circuit breaker rated for 200 A continuous current at 40 °C, with a TM240 thermal-magnetic release. It holds the same 200 A rating 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 in a warm panel you lose about 12 % of capacity at the top of the operating range. Interrupting capacity runs 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V, which covers most industrial distribution fault levels without cascading upstream. Front-side IP40 keeps dust out of the mechanism; the enclosure is sized at 105 mm wide × 158 mm high × 70 mm deep — a standard MCCB footprint for a 200 A frame. The TM240 release is factory-set and non-interchangeable in the field — verify your cable sizing and coordination study against the 200 A continuous rating before committing the BOM. Undervoltage release coil wiring shares the same terminal compartment as the auxiliary contacts; keep the free-wheel diode polarity correct if the UVR is driven by a DC control supply. The trip indicator on the front face gives a visual flag after a fault event, which saves a multimeter walk during troubleshooting.","metaTitle":"Siemens 3VA1220-4EF32-0BH0 SENTRON MCCB, 200 A, 3-Pole, 121","metaDescription":"Siemens SENTRON 3VA1220-4EF32-0BH0 molded case circuit breaker, 200 A rated, 3-pole, 121 kA at 240 V interrupting capacity. Current lifecycle. Quoted to order.","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":"Yes","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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=568382&mlfb=3VA1220-4EF32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA1220-4EF32-0BH0?","answer":"Rated continuous current Iu is 200 A, 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. It is a 3-pole MCCB with a TM240 thermal-magnetic release and an undervoltage release."},{"question":"Where can I buy 3VA1220-4EF32-0BH0?","answer":"This part is sourced to order through independent distribution channels. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the depth of 3VA1220-4EF32-0BH0?","answer":"The depth is listed as 70 mm."},{"question":"What is the width of 3VA1220-4EF32-0BH0?","answer":"The width is listed as 105 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0BH0","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/3VA1220-4EF32-0BH0 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}}