{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF32-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF32-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF32-0CH0, molded case circuit breaker, 3-pole, 200 A rated continuous current Iu, line protection version, TM240 overcurrent release, undervoltage release included, 70 mm depth.","salesMarkdown":"The TM240 thermal-magnetic release handles the overload and short-circuit sensing; there's no electronic trip unit to program or power. ## Breaking capacity at the voltages you actually see This breaker's interrupting rating is voltage-dependent, and the numbers matter for selectivity coordination. At 240 V it clears 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. If your panel feeds a 480 V distribution bus, the 440 V figure (25 kA) is the one to compare against your available fault current — that's the limiting case for most North American commercial installations. The 690 V rating covers the European 400 V line-to-line with headroom. ## Thermal derating and environment At 55 °C it drops to 194 A, then 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. Front-face protection is IP40, so it's splash-resistant from the front in a closed panel but not washdown-rated.","metaTitle":"Siemens 3VA1220-4EF32-0CH0 SENTRON MCCB, 200 A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VA1220-4EF32-0CH0 molded case circuit breaker, 200 A rated current, 3-pole, line protection. Breaking capacity 121 kA at 240 V. Current production. Available to or","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":"3VA9608-0BB24","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=568385&mlfb=3VA1220-4EF32-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0CH0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1220-4EF32-0CH0's listed depth?","answer":"The listed depth is 70 mm. Overall dimensions are 158 mm tall by 105 mm wide by 70 mm deep, fitting standard MCCB panel cutouts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0CH0","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/3VA1220-4EF32-0CH0 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}}