{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-5EF36-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-5EF36-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-5EF36-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-5EF36-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-5EF36-0CC0, molded case circuit breaker, 3-pole, 20 A rated continuous current (Iu), TM240 thermal-magnetic overcurrent release, 187 kA breaking capacity at 240 VAC, includes undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"That TM designation means fixed thermal and magnetic trip elements — no interchangeable trip unit, so the 20 A rating is locked at order. The breaker holds its full 20 A rating from 40 °C up through 50 °C ambient; it derates to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C. Breaking capacity is the headline here: 187 kA at 240 VAC, 121 kA at 415 VAC, 75.6 kA at 440 VAC, and 17 kA at 690 VAC. At 415 V (common IEC industrial voltage), 121 kA still gives headroom for most distribution boards. The 690 V rating at 17 kA is lower but still adequate for many 690 V motor control centers. This is a 3-pole breaker with an undervoltage release (UVR) built in — the release design is listed as 3VA9608-0BB24. It also ships with 2 auxiliary switches HQ. Front IP40 protection means it's splash-proof from the front but not sealed for washdown environments; mount it inside a cabinet, not exposed.","metaTitle":"Siemens 3VA1120-5EF36-0CC0 SENTRON MCCB, 20 A, 3-Pole, 187 k","metaDescription":"Siemens 3VA1120-5EF36-0CC0 SENTRON molded case circuit breaker, 20 A rated, 3-pole, TM240 trip, 187 kA at 240 VAC. Active production. Undervoltage release included. Sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"20 A","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"19.2 A","at 60 °C":"18.8 A","at 65 °C":"18.4 A","at 70 °C":"18 A","Trip indicator":"No","Number of poles":"3","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":"20 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","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":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"20 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Adjustable response value current / lr min.":"14 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":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=332506&mlfb=3VA1120-5EF36-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-5EF36-0CC0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1120-5EF36-0CC0?","answer":"Submit an RFQ through this listing. We source through independent distribution and confirm current pricing and availability at quote time — no stock count or price is published here because both change daily."},{"question":"What compliance documentation does Siemens provide for 3VA1120-5EF36-0CC0?","answer":"Siemens SENTRON MCCBs typically carry UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications, plus RoHS and REACH declarations. Specific documentation (declaration of conformity, test certificates) is available through Siemens Industry Online Support or your distributor upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-5EF36-0CC0","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/3VA1120-5EF36-0CC0 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}}