{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5EF42-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5EF42-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5EF42-0KH0, molded case circuit breaker, 4-pole, line protection, 200 A rated continuous current, TM240 thermal-magnetic release, 187 kA breaking capacity at 240 V.","salesMarkdown":"The Siemens 3VA1220-5EF42-0KH0 is a SENTRON molded case circuit breaker (MCCB) rated for 200 A continuous current in a 4-pole configuration, with a TM240 thermal-magnetic overcurrent release and a 187 kA interrupting capacity at 240 V. This is a line-protection version — meaning it is sized for feeder and main distribution duty, not motor-starting or generator applications where a different trip curve would be needed. The 200 A rating holds flat from 40 °C up to 50 °C, then derates to 176 A at 70 °C; that thermal stability matters when the breaker sits in a crowded panel where ambient climbs above the standard 40 °C reference point. The interrupting rating drops with system voltage, as you would expect for an MCCB: 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. For a 415 V distribution board — common in European industrial plants — that 121 kA figure gives substantial headroom above typical transformer-fed fault levels (usually 25–50 kA), so selectivity with downstream breakers is achievable without oversizing the main. At 690 V the 17 kA rating still covers most motor-control-center faults, but verify your worst-case bolted-fault calculation if the transformer is close-coupled. ## Auxiliary contacts and shunt trip The shunt trip is ordered separately as 3VA9688-0BL33. If your control scheme needs undervoltage release or ground-fault monitoring, note that this variant carries neither — those would require a different order-code suffix. ## Physical footprint Dimensions are 158 mm height, 140 mm width, 70 mm depth. The 140 mm width is the standard 4-pole MCCB form factor for this SENTRON series, so it will fit the same mounting cutout and busbar spacing as other 4-pole 3VA breakers. Panel depth of at least 100 mm is advisable to allow clearance for the rear arc-chamber venting and wiring bends.","metaTitle":"Siemens 3VA1220-5EF42-0KH0 SENTRON MCCB, 200 A, 4-Pole, Line","metaDescription":"Siemens 3VA1220-5EF42-0KH0 SENTRON molded case circuit breaker, 200 A rated current, 4-pole, TM240 release, 187 kA at 240 V. 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":"187 kA","at 415 V":"121 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":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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","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=568601&mlfb=3VA1220-5EF42-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1220-5EF42-0KH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time; no stock count or price figure is published here."},{"question":"What is the depth of the 3VA1220-5EF42-0KH0?","answer":"The depth is 70 mm. Combined with a height of 158 mm and width of 140 mm, it fits the standard 4-pole SENTRON 3VA mounting footprint."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"As a SENTRON molded case circuit breaker, the 3VA1220-5EF42-0KH0 is designed to meet IEC 60947-2 and UL 489 standards. Typical documentation includes a CE declaration of conformity, RoHS and REACH compliance statements, and a manufacturer's declaration for the UKCA mark. Specific certificates are available on request at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0KH0","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/3VA1220-5EF42-0KH0 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}}