{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF36-0AH0, molded case circuit breaker, 3-pole, 125 A rated continuous current, TM240 overcurrent release, 187 kA interrupting at 240 V, IP40 front, depth 70 mm.","salesMarkdown":"The Siemens SENTRON 3VA1112-5EF36-0AH0 is a 3-pole molded case circuit breaker rated for 125 A continuous current (Iu) at 40 °C, with a TM240 thermal-magnetic overcurrent release. That 125 A holds flat through 50 °C — you don't lose headroom until 55 °C, where it steps to 120 A, then 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C. So for a panel running at 50 °C ambient, you get the full 125 A; above that, the derating curve is already baked into the part's rating table. Interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. Depth is 70 mm, width 76.2 mm, height 130 mm; that 76.2 mm width is a standard 3-pole MCCB footprint on a DIN rail or mounting plate. ## Auxiliary contacts and trip signaling The trip alarm switch changes state only when the breaker trips on fault — not on manual open — so a PLC or annunciator gets a dedicated fault signal separate from the run/stop status. That saves an external relay or a second contact block. The TM240 release is fixed, not adjustable for long-time pickup, but the long-time delay (tr max) is set to 1 second. The 3VA1010-2ED32-0JA0 is a smaller-frame SENTRON MCCB — lower continuous current and interrupting ratings. The 3VA1112-5EF36-0AH0 carries a 125 A frame with 187 kA interrupting at 240 V, while the 3VA1010-2ED32-0JA0 is a 100 A frame with a lower interrupting capacity. The 3VA1112 will not drop into a panel wired for the 3VA1010 without checking bus-bar spacing and lug size — the frame depth and terminal layout differ. If your BOM calls for the 3VA1010, the 3VA1112 is not a direct mechanical swap; you'd need to re-evaluate the mounting and conductor terminations.","metaTitle":"Siemens 3VA1112-5EF36-0AH0 SENTRON MCCB, 125 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA1112-5EF36-0AH0 molded case circuit breaker, 125 A continuous, 3-pole, 187 kA at 240 V. Active lifecycle. 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":"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":"Yes","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":"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":"125 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","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":"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":"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=234259&mlfb=3VA1112-5EF36-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1112-5EF36-0AH0 include auxiliary contacts?","answer":"Yes, it ships with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration). The trip alarm signals only on fault trip, not manual open."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0AH0","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/3VA1112-5EF36-0AH0 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}}