{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF36-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF36-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF36-0HA0, molded case circuit breaker, 3-pole, 125 A (40 °C), 75.6 kA at 240 V, line protection, shunt trip (STL), TM240 release.","salesMarkdown":"The Siemens SENTRON 3VA1112-3EF36-0HA0 is a 3-pole molded case circuit breaker rated 125 A at 40 °C, with a breaking capacity of 75.6 kA at 240 V AC. At 415 V it still holds 52.5 kA, and at 690 V it's 11.9 kA. ## Panel fit — dimensions and derating Width is 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — standard SENTRON 3VA form factor, mounts on a DIN rail or panel-mount adapter. The 125 A rating holds flat from 40 °C to 50 °C; above that it derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. If your enclosure ambient runs hot, use the 60 °C or 65 °C column for sizing. ## What it's designed for It's a straight thermal-magnetic MCCB for feeder or main breaker duty in distribution panels, motor control centers, and switchboards. The shunt trip gives you remote open capability for emergency-stop circuits or interlocking schemes.","metaTitle":"Siemens 3VA1112-3EF36-0HA0 SENTRON MCCB, 125 A, 75.6 kA at 2","metaDescription":"Siemens SENTRON 3VA1112-3EF36-0HA0 molded case circuit breaker, 3-pole, 125 A rated at 40 °C, 75.6 kA breaking at 240 V. Current production. 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 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":"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":"3VA11123EF360AA0","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":"0","Switching Capacity Class Of The Circuit Breaker":"N","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=21869&mlfb=3VA1112-3EF36-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0HA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-3EF36-0HA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 3VA1112-3EF36-0HA0?","answer":"The 3VA1112-5EE32-0AA0 is a sibling in the same SENTRON 3VA family — same frame size, same poles, but with a different breaking capacity and release type. Verify the interrupting rating and trip curve against your fault study before swapping."},{"question":"What is the depth of 3VA1112-3EF36-0HA0?","answer":"Listed depth is 70 mm (2.76 in)."},{"question":"What is the width of 3VA1112-3EF36-0HA0?","answer":"Listed width is 76.2 mm (3 in)."},{"question":"Will 3VA1112-3EF36-0HA0 drop into a panel specified around 3VA1112-5EE32-0AA0 without rewiring?","answer":"Both share the same SENTRON 3VA frame dimensions (76.2 mm wide, 70 mm deep, 130 mm high), so the mechanical fit is identical. The wiring terminals and lug sizes are the same family standard — no rewiring needed for the panel cutout or bus connection. However, the trip curve and interrupting rating differ; confirm coordination before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0HA0","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/3VA1112-3EF36-0HA0 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}}