{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6MH32-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6MH32-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6MH32-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6MH32-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-6MH32-0BC0, molded case circuit breaker, 3-pole, 200 A, 220 kA at 240 V, starter protection design with undervoltage release.","salesMarkdown":"The Siemens 3VA1220-6MH32-0BC0 is a SENTRON molded case circuit breaker (MCCB) rated for 200 A continuous at 40 °C through 50 °C, with a 3-pole configuration and a dedicated starter protection design — meaning it's built for motor branch-circuit duty where the breaker coordinates with a contactor and overload relay, not just general distribution. ## SCCR and thermal derating The interrupting capacity drops with system voltage: 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. That 4.5 kA figure at 690 V is the limiting case — if your line-side transformer delivers a 690 V secondary with high fault current, this breaker still clears it, but the margin is tight. Thermal derating starts above 50 °C: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, 176 A at 70 °C. In a sealed panel hitting 60 °C ambient, you lose 12 A of headroom from the 200 A nameplate. ## Panel integration The 105 mm width (4.13 in) and 158 mm height (6.22 in) fit standard MCCB slots in most industrial enclosures; depth is 70 mm (2.76 in). The factory-fitted undervoltage release and two HQ auxiliary switches eliminate the need for separate terminal blocks for status feedback — wire the UVR coil to the safety circuit and the aux contacts to the PLC input card directly.","metaTitle":"Siemens 3VA1220-6MH32-0BC0 SENTRON MCCB, 200 A, 3-Pole, 220","metaDescription":"Siemens SENTRON 3VA1220-6MH32-0BC0 molded case circuit breaker, 200 A, 3-pole, 220 kA interrupting at 240 V. Starter protection design with undervoltage release. Current production","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":"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":"44.5 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 HQ","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":"3VA9608-0BB11","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=569220&mlfb=3VA1220-6MH32-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6MH32-0BC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-6MH32-0BC0?","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 interrupting capacity at 415 V?","answer":"The interrupting rating is 154 kA at 415 V, which covers most industrial low-voltage distribution fault levels."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it is factory-equipped with an undervoltage release (UVR) and two HQ auxiliary switches, so no separate add-on module is needed."},{"question":"What is the thermal derating above 50 °C?","answer":"The breaker carries 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/3VA1220-6MH32-0BC0","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/3VA1220-6MH32-0BC0 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}}