{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4GF42-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4GF42-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4GF42-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4GF42-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4GF42-0AJ0, Molded case circuit breaker, 4-pole, Line protection, Rated continuous current Iu 200 A, TM240 overcurrent release, Breaking capacity 121 kA at 240 V.","salesMarkdown":"## What this 200 A 4-pole MCCB delivers The Siemens 3VA1220-4GF42-0AJ0 is a SENTRON molded case circuit breaker rated for 200 A continuous current at 40 °C, with a TM240 thermal-magnetic trip unit — that's the fixed thermal element and magnetic short-circuit release tuned for line protection, not motor or generator duty. Four poles handle three-phase plus neutral, with 100% N-conductor protection designed in (no derating on the neutral pole). Breaking capacity runs 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V — so it's sized for high-fault industrial panels where the upstream transformer can deliver serious current. The front face carries IP40 protection, fine for a clean indoor enclosure; the auxiliary contact block ships as 2 auxiliary switches plus 1 trip alarm switch, giving you both status and fault signalling without adding a separate module. Dimensions are 158 mm high, 140 mm wide, 70 mm deep — a compact footprint for a 200 A frame. Auxiliary contacts are pre-wired to the terminal block; the trip alarm switch (HP) gives a separate signal for remote annunciation, which saves a control relay in the panel.","metaTitle":"Siemens 3VA1220-4GF42-0AJ0 SENTRON MCCB, 200 A, 4-Pole, 121","metaDescription":"Siemens 3VA1220-4GF42-0AJ0 SENTRON molded case circuit breaker, 200 A, 4-pole, TM240 release, 121 kA at 240 V. Active production. Sourced 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":"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":"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 HP","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":"100%","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":"3VA9988-0AB11","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=568431&mlfb=3VA1220-4GF42-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4GF42-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1220-4GF42-0AJ0?","answer":"Pricing and availability are confirmed at quote time against an RFQ through independent distribution channels — submit a request with your quantity and delivery window."},{"question":"What is 3VA1220-4GF42-0AJ0's breaking capacity at 415 V?","answer":"75.6 kA at 415 V, which is typical for a high-fault industrial MCCB in this frame size."},{"question":"What compliance documentation does this brand provide for 3VA1220-4GF42-0AJ0?","answer":"As a Siemens SENTRON product, it carries CE marking and is designed to IEC 60947-2. RoHS and REACH declarations are available from Siemens documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4GF42-0AJ0","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/3VA1220-4GF42-0AJ0 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}}