{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1220-5MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1220-5MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1220-5MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1220-5MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VM1220-5MH32-0AA0, 3-pole, TM120M thermal-magnetic release, 200 A at 40 °C, interrupting capacity 187 kA at 240 V AC, IP40 front protection.","salesMarkdown":"## SENTRON 3VM1220-5MH32-0AA0 — 200 A MCCB with TM120M Release It carries an interrupting capacity of 187 kA at 240 V AC, 121 kA at 415 V, 76 kA at 440 V, and 30 kA at 500 V — giving you headroom for high-fault installations without cascading upstream gear. The breaker holds a full 200 A up to 50 °C ambient, then derates linearly: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. Front protection is IP40 — fine for a clean panel interior, but not for washdown. Dimensions are 105 mm wide × 158 mm high × 70 mm deep, fitting standard 3-pole MCCB panel cutouts.","metaTitle":"Siemens 3VM1220-5MH32-0AA0 SENTRON MCCB, 200 A, 3-Pole, TM12","metaDescription":"Siemens SENTRON 3VM1220-5MH32-0AA0 molded case circuit breaker, 200 A continuous at 40 °C, 3-pole, TM120M release, 187 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 mm","Height":"158 mm","Maximum":"2 800 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"30 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"194 A","at 60 °C":"188 A","at 65 °C":"182 A","at 70 °C":"176 A","Depth [In]":"2.76 in","Width [In]":"4.13 in","Height [In]":"6.22 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":"No","Design Of The Product":"Startetptotection","Communication Function":"No","Phase Failure Detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"42 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM120M","Design Of Short-Circuit Protection":"For switching capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available 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":"I","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bfaa85f9e5b8d6ecb41e182dfa2de460.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=566557&mlfb=3VM1220-5MH32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1220-5MH32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at 240 V?","answer":"187 kA at 240 V AC. At 415 V it's 121 kA, at 440 V it's 76 kA, and at 500 V it's 30 kA."},{"question":"Where can I buy 3VM1220-5MH32-0AA0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What does the TM120M release mean?","answer":"The TM120M is a thermal-magnetic fixed-trip release — thermal element for overload protection, magnetic for short-circuit. It's non-adjustable, so the breaker's continuous rating is fixed at the listed ampacity."},{"question":"Will this drop into a panel designed for 5SQ2370-2YA05?","answer":"The 3VM1220-5MH32-0AA0 is a different form factor than the 5SQ2370 series — verify panel cutout dimensions and bus bar spacing before substituting. The 105 mm width and 70 mm depth are specific to the SENTRON 3VM platform."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1220-5MH32-0AA0","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/3VM1220-5MH32-0AA0 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}}