{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5EF42-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5EF42-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5EF42-0BH0, molded case circuit breaker, 4-pole, 200 A rated at 40 °C, breaking capacity 187 kA at 240 V, line protection, undervoltage release, 70 mm depth.","salesMarkdown":"The Siemens SENTRON 3VA1220-5EF42-0BH0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 200 A at 40 °C ambient without derating. The breaking capacity reaches 187 kA at 240 V AC and 121 kA at 415 V AC — figures that cover most industrial distribution fault levels. ## Current derating and thermal budget The breaker holds 200 A from 40 °C through 50 °C ambient; above that it derates linearly to 176 A at 70 °C. Maximum power loss is 44.5 W — a figure that matters for enclosure heat rise when multiple breakers share a panel. The operating range spans -25 °C to +70 °C, with storage from -40 °C to +80 °C. Mounting dimensions are 158 mm height × 140 mm width × 70 mm depth, fitting standard SENTRON panel cutouts.","metaTitle":"Siemens 3VA1220-5EF42-0BH0 MCCB, 200 A, 4-Pole, 70 mm Depth","metaDescription":"Siemens SENTRON 3VA1220-5EF42-0BH0 molded case circuit breaker, 200 A rated at 40 °C, 4-pole, breaking capacity 187 kA at 240 V. Active production. Quoted 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":"140 mm","Height":"158 mm","Maximum":"0 A","Minimum":"0 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":"17 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]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"Yes","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line 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":"3VA12205EF420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch 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":"TM240","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","design of the N-conductor protection":"without","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=568586&mlfb=3VA1220-5EF42-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0BH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"121 kA at 415 V AC, with higher ratings at lower voltages (187 kA at 240 V) and lower ratings at higher voltages (75.6 kA at 440 V, 30 kA at 500 V, 17 kA at 690 V)."},{"question":"What auxiliary switches come with 3VA1220-5EF42-0BH0?","answer":"Two auxiliary switches plus one trip alarm switch (HQ design). An undervoltage release (UVR) is also included."},{"question":"Where can I buy 3VA1220-5EF42-0BH0?","answer":"Sourced and quoted 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/3VA1220-5EF42-0BH0","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/3VA1220-5EF42-0BH0 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}}