{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6EF42-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6EF42-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-6EF42-0CC0, Molded case circuit breaker, 4-pole, 200 A rated continuous current Iu, TM240 overcurrent release, Line protection version, with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"## Rated for 200 A continuous, 4-pole — what that means in the panel The Siemens SENTRON 3VA1220-6EF42-0CC0 is a 4-pole molded case circuit breaker (MCCB) rated for 200 A continuous current (Iu) across the full ambient range up to 50 °C, with thermal derating starting at 55 °C (194 A) down to 176 A at 70 °C. That 200 A rating holds steady at 40 °C, 45 °C, and 50 °C — so in a typical 40 °C panel you get the full nameplate without derating. The TM240 overcurrent release is a thermal-magnetic unit — thermal for overload protection, magnetic for short-circuit. It's fixed-trip, not adjustable, so what you order is what coordinates with downstream feeders. The breaker is designated for line protection, meaning it's the main incoming device, not a feeder or branch protector. ## Breaking capacity — the real selectivity number Rated breaking capacity varies sharply with system voltage: 220 kA at 240 V, 154 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. At 415 V — common in industrial distribution — you're looking at 154 kA, which is high enough for most main service entrances without cascading upstream. The 36 kA at 440 V is still robust for secondary distribution. If your system runs at 690 V, the 17 kA rating is the binding constraint for fault current coordination studies. ## Built-in undervoltage release and auxiliary contacts This variant comes factory-fitted with an undervoltage release (UVR) — part of the auxiliary release design — and 2 auxiliary switches (HQ type). The integrated auxiliary trip is specified as order code 3VA9608-0BB24 — that's the factory-installed shunt or UVR module, not a field-addable kit. Verify your panel wiring accommodates the UVR coil power requirements before commissioning. Dimensions: 140 mm wide, 158 mm high, 70 mm deep.","metaTitle":"Siemens 3VA1220-6EF42-0CC0 SENTRON MCCB, 200 A, 4-Pole, Line","metaDescription":"Siemens SENTRON 3VA1220-6EF42-0CC0 molded case circuit breaker, 200 A continuous, 4-pole, TM240 release, 220 kA at 240 V. Active production, 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":"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":"3VA9608-0BB24","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","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=568466&mlfb=3VA1220-6EF42-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-6EF42-0CC0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of 3VA1220-6EF42-0CC0 at 415 V?","answer":"At 415 V the rated breaking capacity is 154 kA. At 240 V it is 220 kA, at 440 V it is 36 kA, and at 690 V it is 17 kA."},{"question":"Does 3VA1220-6EF42-0CC0 have an undervoltage release?","answer":"Yes, it is factory-equipped with an undervoltage release (UVR) as part of the auxiliary release design, plus 2 auxiliary switches HQ for status feedback."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0CC0","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/3VA1220-6EF42-0CC0 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}}