{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF36-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF36-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4EF36-0CA0, 3-pole molded case circuit breaker, 125 A rated continuous current, TM240 thermal-magnetic release, 121 kA interrupting capacity at 240 VAC, line protection version with undervoltage release.","salesMarkdown":"The Siemens SENTRON 3VA1112-4EF36-0CA0 is a 3-pole molded case circuit breaker rated for 125 A continuous current at 40 °C, meaning it handles that load without derating in a typical 40 °C panel ambient. The interrupting capacity hits 121 kA at 240 VAC, 75.6 kA at 415 VAC, and still delivers 52.5 kA at 440 VAC; that 121 kA figure at 240 V is the headline number for high-fault panels downstream of large transformers. ## Footprint and panel integration The 3VA1112-4EF36-0CA0 measures 70 mm deep by 76.2 mm wide by 130 mm tall — a compact 3-pole frame that fits standard SENTRON mounting plates and busbar systems. The 15 000 mechanical endurance cycles cover the typical switching life for a line-protection breaker in a distribution board. ## Thermal derating curve — the real-world current limit Above that, the breaker derates: 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C.","metaTitle":"Siemens 3VA1112-4EF36-0CA0 SENTRON MCCB, 125 A, 121 kA at 24","metaDescription":"Siemens SENTRON 3VA1112-4EF36-0CA0 3-pole molded case circuit breaker, 125 A continuous, 121 kA interrupting at 240 VAC. TM240 release, undervoltage release included. Active produc","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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"120 A","at 60 °C":"117.5 A","at 65 °C":"115 A","at 70 °C":"112.5 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":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"125 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.":"125 A","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 A","Adjustable response value current / lr min.":"88 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"S","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=511893&mlfb=3VA1112-4EF36-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0CA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0CA0","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/3VA1112-4EF36-0CA0 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}}