{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5MH32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5MH32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5MH32-0DA0, 3-pole molded case circuit breaker, 200 A rated continuous current, starter protection version with TM120M thermal-magnetic release, 187 kA breaking capacity at 240 V AC.","salesMarkdown":"Breaking capacity is 187 kA at 240 V, 121 kA at 415 V, 30 kA at 440 V, and 17 kA at 690 V — the 240 V and 415 V figures cover the most common low-voltage distribution and motor branch-circuit fault levels, while the 690 V rating confirms suitability for 690 V line-to-line systems where available fault current stays under 17 kA. ## Thermal performance and derating Derating begins at 55 °C (192 A), dropping to 188 A at 60 °C, 184 A at 65 °C, and 180 A at 70 °C — the 70 °C figure matches the maximum operating ambient, so the derating curve covers the full temperature range a panel might see near a heat source or in a sealed enclosure. ## Motor duty and endurance Operating power at AC-3 duty (motor switching) at 400 V is 75 W — this is the power dissipated by the breaker under load, relevant for enclosure thermal calculations. ## Physical footprint and mounting Dimensions are 105 mm width, 158 mm height, and 70 mm depth. The integrated auxiliary trip is specified as order code 3VA9608-0BB25 — that sub-assembly is the undervoltage release module that mates with this breaker. No auxiliary contact version is included as standard.","metaTitle":"Siemens 3VA1220-5MH32-0DA0 SENTRON MCCB, 200 A, 3-Pole, 187","metaDescription":"Siemens 3VA1220-5MH32-0DA0 SENTRON molded case circuit breaker, 200 A rated, 3-pole, 187 kA breaking at 240 V. Starter protection version with TM120M release and undervoltage trip.","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":"187 kA","at 415 V":"121 kA","at 440 V":"30 kA","at 690 V":"17 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"192 A","at 60 °C":"188 A","at 65 °C":"184 A","at 70 °C":"180 A","Trip indicator":"No","Number of poles":"3","Product version":"Starter 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":"Without","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":"3VA9608-0BB25","Design of the overcurrent release":"TM120M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 400 V":"75 W","Reference code / acc. to DIN EN 81346-2":"Q","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 / li max.":"2 800 A","Adjustable response value current / li min.":"1 200 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"I","Switching capacity class of the circuit breaker":"M","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"}},"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=569199&mlfb=3VA1220-5MH32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1220-5MH32-0DA0 at 415 V?","answer":"The breaking capacity at 415 V is 121 kA, which covers the typical fault level in most low-voltage industrial distribution systems."},{"question":"Where can I buy 3VA1220-5MH32-0DA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution — submit a request for quote and we will confirm availability and current pricing at that time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0DA0","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/3VA1220-5MH32-0DA0 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}}