{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF32-0AH0, 3-pole molded case circuit breaker, TM240 thermal-magnetic release, 125 A at 40 °C, 187 kA breaking capacity at 240 V.","salesMarkdown":"## SENTRON 3VA1112-5EF32-0AH0 — 125 A MCCB with TM240 Release It carries a 125 A continuous rating at 40 °C, with a TM240 thermal-magnetic overcurrent release — meaning the thermal element tracks load heating for overloads, and the magnetic element trips instantaneously on short-circuit currents above the release setting. The 187 kA breaking capacity at 240 V gives it headroom for high-fault panels, and the 800 V rated insulation voltage suits it for 480 V and 600 V class systems. Rated 125 A continuously at 40 °C, derating to 114 A at 70 °C — the thermal curve governs real-world loading in a warm enclosure. Breaking capacity steps from 187 kA at 240 V down to 17 kA at 690 V, so the SCCR coordination study must use the voltage at the fault point. Power loss of 28.1 W maximum factors into enclosure thermal calculations. Mounts on DIN rail with a 76.2 mm (3 in) width — three 18 mm pole spaces — and a 70 mm (2.76 in) depth. The 130 mm (5.12 in) height fits standard distribution panelboards.","metaTitle":"Siemens 3VA1112-5EF32-0AH0 SENTRON MCCB, 125 A, 3-Pole, TM24","metaDescription":"Siemens 3VA1112-5EF32-0AH0 SENTRON molded case circuit breaker, 125 A at 40 °C, 3-pole, TM240 release, 187 kA at 240 V. Active lifecycle. Quoted to order.","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":"Yes","Number Of Poles":"3","Voltage Trigger":"No","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":"3VA11125EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","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","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":"M","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=534413&mlfb=3VA1112-5EF32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1112-5EF32-0AH0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is the breaking capacity of 3VA1112-5EF32-0AH0 at 240 V?","answer":"187 kA at 240 V, stepping down to 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V."},{"question":"What compliance documentation does Siemens provide for 3VA1112-5EF32-0AH0?","answer":"As a SENTRON MCCB, it carries the standard Siemens compliance documentation including RoHS and REACH declarations; the product design is line protection per IEC/UL standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0AH0","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/3VA1112-5EF32-0AH0 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}}