{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker (MCCB), 3VA1112-3EF32-0BH0, 3-pole, 125 A, interrupting capacity 75.6 kA at 240 V AC, line protection design, with undervoltage release and auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA1112-3EF32-0BH0 is a 3-pole molded case circuit breaker rated for 125 A continuous at 40 °C, with a full-current rating holding steady up to 50 °C before a gentle thermal derating curve kicks in — 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. That means for most panel environments below 50 °C, you get the full 125 A without headroom math. Interrupting capacity runs 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V — so the SCCR you can claim downstream depends on which voltage tap you're feeding. This is a line-protection design (not motor-protection curve), so it's the right call for feeder and distribution panels where you need selective coordination against downstream faults. ## Auxiliary and alarm contacts That gives you two independent status signals for PLC or SCADA input, plus a dedicated alarm contact that closes only on a fault trip — no need to add a separate shunt trip or auxiliary module for basic monitoring. Footprint is 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB envelope that drops into most SENTRON 3VA panelboards and distribution blocks without re-drilling the mounting plate. Trip indicator is present, so a quick visual scan of the panel face tells you which breaker tripped without opening the door.","metaTitle":"Siemens SENTRON 3VA1112-3EF32-0BH0 MCCB, 125 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1112-3EF32-0BH0 molded case circuit breaker, 125 A, 3-pole, 75.6 kA interrupting at 240 V. Current production. Quoted 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":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"30.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11123EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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":"3VA9608-0BB11","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=11580&mlfb=3VA1112-3EF32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1112-3EF32-0BH0 at 240 V?","answer":"75.6 kA at 240 V AC, with 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V and 690 V."},{"question":"What auxiliary switches come fitted on this MCCB?","answer":"Two auxiliary switches plus one trip alarm switch (HQ type) are factory-installed."},{"question":"Where can I buy 3VA1112-3EF32-0BH0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it comes with a built-in undervoltage release (UVR) that trips the breaker when control voltage drops."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF32-0BH0","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/3VA1112-3EF32-0BH0 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}}