{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1112-5EF36-0CC0, 125 A, 3-pole, TM240 thermal-magnetic release, 187 kA at 240 V.","salesMarkdown":"The Siemens 3VA1112-5EF36-0CC0 is a SENTRON molded case circuit breaker rated for 125 A continuous current (Iu) across three poles, with a TM240 thermal-magnetic overcurrent release. Breaking capacity runs from 187 kA at 240 V down to 17 kA at 690 V, which gives selectivity headroom for most distribution panels without cascading upstream. The 800 V rated insulation voltage (Ui) covers 480/600 VAC systems with margin. Panel builders will note the 70 mm depth and 76.2 mm width — standard 3-pole MCCB footprint for DIN-rail or screw-mount chassis integration. The 125 A rating holds flat from 40 °C through 50 °C. Above that it derates linearly: 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, 112.5 A at 70 °C. If the panel ambient runs hot — say a packed enclosure near a furnace line — that 112.5 A floor at 70 °C still leaves headroom for a 100 A continuous load. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. ## Auxiliary and undervoltage release This variant ships with two factory-fitted HQ auxiliary switches (3VA9608-0BB24) and an undervoltage release (UVR). The UVR drops the breaker when control voltage falls below a threshold — standard for emergency-stop chains or undervoltage protection on motor feeders.","metaTitle":"Siemens 3VA1112-5EF36-0CC0 SENTRON MCCB, 125 A, 3-Pole, TM24","metaDescription":"Siemens 3VA1112-5EF36-0CC0 SENTRON molded case circuit breaker, 125 A rated continuous current, 3-pole, TM240 release, 187 kA at 240 V. Current lifecycle stage. Quoted to order aga","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":"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":"2 auxiliary switches HQ","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":"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=189872&mlfb=3VA1112-5EF36-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-5EF36-0CC0 and get a price?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What is the breaking capacity of 3VA1112-5EF36-0CC0 at 415 V?","answer":"121 kA at 415 V. The full breaking capacity curve is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V."},{"question":"Does 3VA1112-5EF36-0CC0 include an undervoltage release?","answer":"Yes, it is fitted with an undervoltage release (UVR) as standard, plus two HQ auxiliary switches (order code 3VA9608-0BB24)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0CC0","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/3VA1112-5EF36-0CC0 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}}