{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5MH32-0AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5MH32-0AD0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5MH32-0AD0, 3-pole molded case circuit breaker, 200 A, TM120M thermal-magnetic release, 187 kA interrupting at 240 V.","salesMarkdown":"It's built for starter protection duty — meaning it's sized to sit ahead of a motor starter combination, handling both overload and short-circuit fault clearing in one package. The interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and still delivers 75.6 kA at 440 V, so it's comfortable on high-fault industrial distribution panels where the available short-circuit current is substantial. At 55 °C it derates to 194 A, at 60 °C to 188 A, at 65 °C to 182 A, and at 70 °C to 176 A. The maximum power loss is 42 W, which matters for internal enclosure heat rise calculations. ## Physical fit and internal build Dimensions are 105 mm wide, 158 mm high, 70 mm deep. That's a 4.13 x 6.22 x 2.76 inch footprint — standard for a 200 A frame MCCB. Inside, the basic switch is a 3VA12205MH320AA0, and the auxiliary switch configuration is three HQ-style aux switches.","metaTitle":"Siemens 3VA1220-5MH32-0AD0 SENTRON MCCB, 200 A, 3-Pole","metaDescription":"Siemens 3VA1220-5MH32-0AD0 SENTRON molded case circuit breaker, 200 A, 3-pole, TM120M release, 187 kA at 240 V. Active production. Sourced 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":"105 mm","Height":"158 mm","Maximum":"200 A","Minimum":"200 A","at 240 V":"187 kA","at 415 V":"121 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":"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":"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":"3VA12205MH320AA0","Design Of The Auxiliary Switch":"3 auxiliary switches 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":"3VA9988-0AA12","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=569187&mlfb=3VA1220-5MH32-0AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0AD0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1220-5MH32-0AD0 at 415 V?","answer":"At 415 V the interrupting capacity is 121 kA. At 240 V it's 187 kA, at 440 V it's 75.6 kA, at 500 V it's 30 kA, and at 690 V it's 4.5 kA."},{"question":"Where can I buy 3VA1220-5MH32-0AD0?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0AD0","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/3VA1220-5MH32-0AD0 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}}