{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6EF42-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6EF42-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, Molded case circuit breaker, 3VA1220-6EF42-0DC0, 200 A, 4-pole, 220 kA at 240 V, undervoltage release, 2 auxiliary switches HQ.","salesMarkdown":"It's a line-protection breaker, meaning it's built for feeder and main distribution duties where you need to clear faults fast and keep selectivity downstream. The interrupting ratings tell the story: 220 kA at 240 V, 154 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. At 415 V, the 154 kA still gives you plenty of headroom for most industrial switchboards. ## Thermal performance and derating At 55 °C it derates to 194 A, at 60 °C to 188 A, at 65 °C to 182 A, and at 70 °C to 176 A. That's a gentle slope — you lose only about 12% by 70 °C, which matters when you're packing breakers tight in a warm enclosure. The storage number governs handling and shipping, not running. ## Auxiliaries and releases Comes with an undervoltage release (UVR) already installed — that's the 'EF42' portion of the order code telling you it's factory-fitted. No ground-fault monitoring, no phase-failure detection, no communication module. This is a straight-ahead line-protection breaker — no frills, fewer things to fail. That's typical for an MCCB of this class — not a switching contactor, but plenty for infrequent manual operation and fault clearing. The 140 mm width is the 4-pole frame footprint — it'll need a 4-module-wide space on the mounting plate.","metaTitle":"Siemens 3VA1220-6EF42-0DC0 SENTRON MCCB, 200 A, 4-Pole, 220","metaDescription":"Siemens 3VA1220-6EF42-0DC0 SENTRON molded case circuit breaker, 200 A continuous, 4-pole, 220 kA interrupting at 240 V. Active production. Quoted 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":"220 kA","at 415 V":"154 kA","at 440 V":"36 kA","at 690 V":"17 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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"H","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=568469&mlfb=3VA1220-6EF42-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0DC0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1220-6EF42-0DC0?","answer":"Submit an RFQ against this order code. Pricing and stock are confirmed at quote time through independent distribution channels; no public price or live stock count is listed here."},{"question":"Will 3VA1220-6EF42-0DC0 drop into a panel specified around 3VA1112-5EF32-0CA0 without rewiring?","answer":"The 3VA1220-6EF42-0DC0 is a physically larger frame — 140 mm wide versus the 3VA1112's narrower 4-pole footprint — so it will not drop into the same mounting cutout or bus bar spacing without panel modification. Check the dimensional drawings against your existing backplate."},{"question":"What compliance documentation does this brand provide for 3VA1220-6EF42-0DC0?","answer":"Siemens SENTRON MCCBs carry CE marking and UL/CSA certifications per the standard 3VA series documentation. RoHS and REACH declarations are available from Siemens' support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0DC0","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/3VA1220-6EF42-0DC0 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}}