{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6MH32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6MH32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6MH32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6MH32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-6MH32-0AH0, molded case circuit breaker, 3-pole, 200 A, TM120M thermal-magnetic release, 220 kA at 240 V.","salesMarkdown":"The Siemens 3VA1220-6MH32-0AH0 is a SENTRON molded case circuit breaker (MCCB) rated for 200 A continuous at 40 °C, with a 3-pole configuration and a TM120M thermal-magnetic overcurrent release. It is designed for starter protection — meaning it handles both motor overload and short-circuit interruption in a single device, which simplifies panel wiring and reduces component count on motor branch circuits. ## Breaking capacity by system voltage This breaker delivers 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 4.5 kA at 690 V. The steep drop above 500 V means it is not a universal high-voltage MCCB — at 690 V the 4.5 kA rating limits it to low-fault-current applications. For 400 V class panels (common in European industrial mains), the 154 kA figure gives substantial SCCR headroom against most transformer-fed faults. ## Thermal derating and installation","metaTitle":"Siemens 3VA1220-6MH32-0AH0 SENTRON MCCB, 200 A, 3-Pole, TM12","metaDescription":"Siemens 3VA1220-6MH32-0AH0 SENTRON molded case circuit breaker, 200 A rated, 3-pole, TM120M release. Breaking capacity 220 kA at 240 V. Active production, sourced to order. RFQ for","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 mm","Height":"158 mm","Maximum":"200 A","Minimum":"200 A","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"75.6 kA","at 500 V":"30 kA","at 690 V":"4.5 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":"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":"Starter protection","Communication Function":"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","Of The Supplied Basic Switch":"3VA12206MH320AA0","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":"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","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"H","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=569217&mlfb=3VA1220-6MH32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6MH32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1220-6MH32-0AH0 at 415 V?","answer":"154 kA at 415 V, which covers most industrial 400 V class transformer-fed fault scenarios."},{"question":"Where can I buy 3VA1220-6MH32-0AH0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Does 3VA1220-6MH32-0AH0 include auxiliary contacts?","answer":"Yes, it ships with 2 auxiliary switches plus 1 trip alarm switch (HQ type) built in — no separate accessory required for status feedback."},{"question":"What is the thermal derating above 50 °C for this MCCB?","answer":"Rated 200 A up to 50 °C, then derates to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-6MH32-0AH0","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/3VA1220-6MH32-0AH0 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}}