{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5MH32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5MH32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5MH32-0CA0, molded case circuit breaker, 3-pole, 200 A rated continuous current, starter protection version with TM120M thermal-magnetic release, undervoltage release, 187 kA breaking capacity at 240 V.","salesMarkdown":"Rated for a continuous 200 A at 40 °C through 50 °C, it holds that current flat across the typical panel ambient range — only starts derating above 55 °C, dropping to 180 A at 70 °C. That thermal curve matters if you're packing this into a hot enclosure or a non-ventilated section of the panel. Breaking capacity is the headline here: 187 kA at 240 V AC, 121 kA at 415 V, 30 kA at 440 V, and 17 kA at 690 V. No electronic trip unit here, so no adjustable curves or communication. The integrated undervoltage release (UVR) is built in, part of the base design, not an add-on. That UVR will drop the breaker if control voltage is lost, which is standard for emergency-stop or safety-related disconnect circuits. Panel footprint: 105 mm wide, 158 mm high, 70 mm deep. No auxiliary contacts are included (the auxiliary contact version is listed as 'Without'), so if you need status feedback to a PLC, you'll need to add the separate auxiliary trip accessory 3VA9608-0BB24. The IP40 front protection means it's fine for a closed panel; don't mount it where washdown or dripping water hits the front face. The starter protection designation means the thermal-magnetic release is calibrated for motor-starting duty — higher magnetic pickup to avoid tripping on inrush, and a thermal curve that matches motor heating characteristics. At AC-3 duty (400 V) it's rated for 75 W of switching power, which covers most direct-on-line motor starters up to about 37 kW depending on the motor's full-load amps. No phase failure detection built in, so if single-phasing is a concern on your line, you'll need a separate phase-loss relay or a motor protection relay downstream.","metaTitle":"Siemens 3VA1220-5MH32-0CA0 SENTRON MCCB, 200 A, 3-Pole, Star","metaDescription":"Siemens SENTRON 3VA1220-5MH32-0CA0 molded case circuit breaker, 200 A rated, 3-pole, starter protection version with TM120M release and undervoltage release. Breaking capacity 187","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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"30 kA","at 690 V":"17 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"192 A","at 60 °C":"188 A","at 65 °C":"184 A","at 70 °C":"180 A","Trip indicator":"No","Number of poles":"3","Product version":"Starter protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"200 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","Design of the overcurrent release":"TM120M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 400 V":"75 W","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / li max.":"2 800 A","Adjustable response value current / li min.":"1 200 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"I","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","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=569196&mlfb=3VA1220-5MH32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-5MH32-0CA0 and how do I get a price?","answer":"We source this part to order against an RFQ through our independent distribution network. Submit an RFQ and we'll confirm availability and current pricing at quote time."},{"question":"What is the breaking capacity of 3VA1220-5MH32-0CA0 at different voltages?","answer":"187 kA at 240 V AC, 121 kA at 415 V, 30 kA at 440 V, and 17 kA at 690 V. These are the maximum fault currents it can safely interrupt at each voltage level."},{"question":"Does 3VA1220-5MH32-0CA0 include an undervoltage release?","answer":"Yes, it has a built-in undervoltage release (UVR) as part of the base design. The design of the auxiliary release is listed as undervoltage release."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0CA0","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/3VA1220-5MH32-0CA0 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}}