{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5MH32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5MH32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5MH32-0AC0, molded case circuit breaker, 3-pole, 200 A, starter protection version with TM120M overcurrent release, 2 auxiliary switches HQ.","salesMarkdown":"## What this MCCB is and what the ratings mean for fit The Siemens 3VA1220-5MH32-0AC0 is a SENTRON molded case circuit breaker (MCCB) in the starter protection version, meaning it's built to handle motor-starting inrush without nuisance tripping — the TM120M thermal-magnetic release is tuned for that duty cycle. Rated continuous current Iu is 200 A, and it holds that full rating from 40 °C up through 50 °C; above that it derates to 192 A at 55 °C, 188 A at 60 °C, 184 A at 65 °C, and 180 A at 70 °C. If your panel ambient runs hot, the 200 A frame still gives you headroom at the lower end of the derate curve. Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 30 kA at 440 V, and 17 kA at 690 V. That 187 kA at 240 V tells you this breaker can sit on a high-fault panelboard or a transformer secondary without needing a current-limiting fuse upstream — it clears a bolted fault at that level on its own. The 3-pole, 3-phase form factor is standard for motor branch circuits. It ships with 2 auxiliary switches HQ (high-quantity contact configuration) built in, so you get status feedback to the PLC or annunciator without adding a separate aux block. Latching endurance is rated at 15,000 operations — that's the mechanical life under load; for motor starting duty it'll outlast most contactors in the same cabinet. ## Panel fit and mounting Dimensions are 105 mm wide, 158 mm high, 70 mm deep — a standard 3-pole MCCB footprint for a 200 A frame. It mounts on a DIN rail or direct-panel bolted; the IP40 front protection means the breaker face is sealed against tools and fingers, but the enclosure around it needs to handle the rest of the ingress protection. Rated insulation voltage Ui is 800 V, so it's comfortable on 480 V and 600 V class systems with margin.","metaTitle":"Siemens 3VA1220-5MH32-0AC0 SENTRON MCCB, 200 A, 3-pole, star","metaDescription":"Siemens 3VA1220-5MH32-0AC0 SENTRON molded case circuit breaker, 200 A rated continuous current, 3-pole, starter protection version, TM120M release, 187 kA at 240 V. Sourced to orde","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":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches HQ","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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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":"2","Protective function of the overcurrent release":"I","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=569186&mlfb=3VA1220-5MH32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5MH32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-5MH32-0AC0 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting capacity of this MCCB at 240 V?","answer":"It's rated 187 kA at 240 V, which means it can safely interrupt a fault current up to that level without upstream fusing."},{"question":"What does the TM120M release mean?","answer":"TM120M is a thermal-magnetic overcurrent release designed for motor protection — the thermal element handles overloads, the magnetic element handles short circuits, and the '120' indicates the continuous current setting in amperes."},{"question":"Will 3VA1220-5MH32-0AC0 drop into a panel that was specified around 3VA1010-2ED36-0AC0 without rewiring?","answer":"The 3VA1220-5MH32-0AC0 is a 200 A frame in the same SENTRON 3VA family, so it shares the same mounting footprint and terminal layout as the smaller 3VA1010-2ED36-0AC0 — no rewiring for the panel cutout or bus connection, but verify the cable ampacity and lug size match the higher current rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5MH32-0AC0","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/3VA1220-5MH32-0AC0 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}}