{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5EF42-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5EF42-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker, order code 3VA1220-5EF42-0AH0, 200 A rated continuous current, 4-pole, line protection, TM240 thermal-magnetic release, 187 kA at 240 V.","salesMarkdown":"The Siemens 3VA1220-5EF42-0AH0 is a SENTRON molded case circuit breaker (MCCB) rated for 200 A continuous current at 40 °C, holding that full rating through 50 °C before the thermal curve starts to bite — at 55 °C it's 194 A, at 70 °C it's 176 A. That flat-top derating profile means you don't lose headroom in a warm panel until the ambient actually pushes past 50 °C. The 4-pole design and TM240 thermal-magnetic release make this a line-protection breaker, not a motor-protection device — the TM240 release is sized for cable and busbar protection, not for an overload relay curve. If your safety circuit or PLC needs a separate signal that the breaker tripped on fault (not just that it's open), that alarm contact is the one to wire. No washdown rating here; this lives inside the enclosure. The breaker footprint is 140 mm wide by 158 mm tall by 70 mm deep — that's a 4-pole MCCB in the SENTRON 3VA frame size. Verify the busbar system (pin or fork type) matches the line-side connection pattern for your distribution board.","metaTitle":"Siemens 3VA1220-5EF42-0AH0 SENTRON MCCB, 200 A, 4-pole, 187","metaDescription":"Siemens 3VA1220-5EF42-0AH0 SENTRON molded case circuit breaker, 200 A rated continuous current, 4-pole, 187 kA at 240 V breaking capacity. Current lifecycle stage. Sourced 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":"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":"No","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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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=568582&mlfb=3VA1220-5EF42-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-5EF42-0AH0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What are the key interrupting ratings for 3VA1220-5EF42-0AH0?","answer":"187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V — that covers most industrial low-voltage distribution fault levels."},{"question":"What is the rated continuous current and how does it derate with temperature?","answer":"200 A from 40 °C through 50 °C, then 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. The flat rating through 50 °C gives good headroom in a typical panel ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0AH0","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/3VA1220-5EF42-0AH0 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}}