{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5MH32-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5MH32-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5MH32-0HA0, molded case circuit breaker, 200 A, 3-pole, TM120M thermal-magnetic release, shunt trip (STL), 70 mm depth, 105 mm width, 158 mm height.","salesMarkdown":"It's a 3-pole, 200 A frame with a TM120M thermal-magnetic release, so the thermal element handles overloads and the magnetic element handles short circuits, no electronic adjustment. The built-in shunt trip (STL) lets a remote signal or safety circuit force the breaker open without anyone walking to the panel. ## Breaking capacity — what the voltage columns tell you This MCCB carries a 187 kA interrupting rating at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 4.5 kA at 690 V. That's a steep derate curve — the breaker is happiest on 240 V or 415 V systems where fault currents can be high, but at 690 V it's only rated for 4.5 kA, which is fine for most 690 V distribution but not for high-fault locations. ## Thermal derating — the real-world current 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 is modest for a 200 A frame, so the self-heating contribution to the enclosure rise is manageable.","metaTitle":"Siemens 3VA1220-5MH32-0HA0 SENTRON MCCB, 200 A, 3-Pole, Shun","metaDescription":"Siemens SENTRON 3VA1220-5MH32-0HA0 molded case circuit breaker, 200 A, 3-pole, TM120M release, shunt trip. Breaking capacity 187 kA at 240 V. Active production, available 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":"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":"Yes","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 Release":"shunt trip (STL)","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":"3VA9688-0BL30","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=569202&mlfb=3VA1220-5MH32-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0HA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-5MH32-0HA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1220-5MH32-0HA0 at 415 V?","answer":"121 kA at 415 V, which covers most industrial distribution up to that voltage level."},{"question":"Does 3VA1220-5MH32-0HA0 include a shunt trip?","answer":"Yes, it includes a factory-installed shunt trip (STL) release, allowing remote tripping from a safety circuit or emergency stop."},{"question":"What is the difference between 3VA1220-5MH32-0HA0 and 3VA1112-5EE32-0AA0?","answer":"The 3VA1220 is a 200 A frame with a thermal-magnetic TM120M release and shunt trip, while the 3VA1112 is a 125 A frame with an electronic release. They are not drop-in substitutes — the current rating, release type, and coordination curves differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0HA0","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/3VA1220-5MH32-0HA0 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}}