{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5MH32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5MH32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5MH32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5MH32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5MH32-0DA0, molded case circuit breaker, starter protection design, 3-pole, 125 A at 40 °C, rated breaking capacity 187 kA at 240 V, undervoltage release included.","salesMarkdown":"Rated 125 A continuously at 40 °C ambient, it holds that full rating through 50 °C, then derates linearly: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C (–). That thermal curve matters when the breaker lives in a crowded panel — if your enclosure ambient runs 55 °C, the usable continuous current is 122 A, not 125 A. At 240 V AC it clears 187 kA; at 415 V it's 121 kA; at 440 V it drops to 75.6 kA; and at 500 V and 690 V it holds at 7.5 kA. The overcurrent release is a TM120M — a thermal-magnetic unit with fixed thermal and magnetic settings matched to the 125 A frame. No ground-fault monitoring, no communication function, no voltage trigger. This is a straightforward, hardened protection device for motor circuits. Power loss at rated load is 30.6 W maximum — relevant for thermal coordination in sealed enclosures. ## Panel integration — what fits where The 3VA1112-5MH32-0DA0 occupies a 76.2 mm wide by 130 mm tall footprint with 70 mm depth behind the panel (–). The undervoltage release adds a pair of control wires; verify the coil voltage matches your control circuit before terminating. No auxiliary contacts are included on this variant — if you need alarm or position feedback, order the accessory kit separately.","metaTitle":"Siemens 3VA1112-5MH32-0DA0 SENTRON MCCB, 125 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA1112-5MH32-0DA0 molded case circuit breaker, 125 A rated, 187 kA breaking at 240 V, starter protection design with undervoltage release. Active production, avail","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":"7.5 kA","at 690 V":"7.5 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":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Starter 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":"3VA11125MH320AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM120M","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":"3VA9608-0BB25","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"I","number of CO contacts / for auxiliary contacts":"0","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=202668&mlfb=3VA1112-5MH32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5MH32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1112-5MH32-0DA0 at different voltages?","answer":"At 240 V it clears 187 kA; at 415 V, 121 kA; at 440 V, 75.6 kA; at 500 V and 690 V, 7.5 kA (–)."},{"question":"Will 3VA1112-5MH32-0DA0 drop into a panel specified for 3VA1110-5EF32-0LA0?","answer":"Both are 3-pole SENTRON MCCBs in the same 125 A frame size, so the 76.2 x 130 mm footprint and DIN-rail mounting are identical. The main difference is the overcurrent release type — this unit has a TM120M thermal-magnetic release with undervoltage release, while the 3VA1110-5EF32-0LA0 uses a different release variant. Verify the release characteristics match your coordination study before swapping."},{"question":"Where can I buy 3VA1112-5MH32-0DA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"As a SENTRON series product, it carries IEC/EN 60947-2 certification for molded case circuit breakers. RoHS and REACH declarations are standard from Siemens. Specific UL listing status should be confirmed against the exact variant — the evidence does not list UL/CSA marks explicitly for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5MH32-0DA0","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/3VA1112-5MH32-0DA0 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}}