{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF36-0HC0, molded case circuit breaker, 3-pole, 125 A rated current at 40-50 °C, 187 kA breaking capacity at 240 V, line protection design, with shunt trip release.","salesMarkdown":"The Siemens SENTRON 3VA1112-5EF36-0HC0 is a 3-pole molded case circuit breaker (MCCB) rated for 125 A continuous current across the 40-50 °C ambient range, with a full-rated 125 A up to 50 °C before derating begins at 55 °C. Breaking capacity hits 187 kA at 240 V AC, stepping down to 121 kA at 415 V and 75.6 kA at 440 V — numbers that cover most industrial distribution panels and motor control center feeder applications. Above 50 °C, derating is gradual: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. If your enclosure runs hot, factor those numbers into the load calculation rather than oversizing the frame. At 415 V (common in European industrial grids) it still clears 121 kA, and at 440 V it handles 75.6 kA. Those are SCCR values, not withstand ratings; the breaker must open on fault, not just pass current through. ## Built-in release and switching configuration The auxiliary switch block carries 2 HQ (high-availability) contacts for status feedback to the control system. There is no undervoltage release on this order code, so if you need UVR for undervoltage protection, you will want a different suffix. For motor branch circuits, pair it with a separate overload relay upstream or downstream. Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth (2.76 inches). The 3-pole width matches the standard 3VA1112 frame — it occupies one 76.2 mm slot on the SENTRON busbar system. Mounts on DIN rail or direct panel mount via the 3VA base.","metaTitle":"Siemens 3VA1112-5EF36-0HC0 SENTRON MCCB, 125 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA1112-5EF36-0HC0 molded case circuit breaker, 125 A rated, 3-pole, 187 kA at 240 V. Current lifecycle stage. Available to order — request a quote for pricing and","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"122 A","at 60 °C":"120 A","at 65 °C":"117 A","at 70 °C":"114 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"28.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11125EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL30","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=462277&mlfb=3VA1112-5EF36-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0HC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V."},{"question":"Does the 3VA1112-5EF36-0HC0 include a shunt trip?","answer":"Yes, it ships with a shunt trip release (STL) for remote tripping, plus 2 HQ auxiliary switches for status feedback."},{"question":"Where can I buy the 3VA1112-5EF36-0HC0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit a request for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0HC0","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/3VA1112-5EF36-0HC0 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}}