{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED32-0BH0, molded case circuit breaker, 3-pole, 20 A rated at 40 °C, 75.6 kA interrupting capacity at 240 V AC, line protection design, with undervoltage release and auxiliary switches.","salesMarkdown":"It's a 3-pole unit rated at 20 A continuous at 40 °C, and it holds that rating up to 55 °C before it starts to derate — at 70 °C it's still good for 19 A. The interrupting capacity is the headline number here: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and it still holds 7.5 kA all the way up to 690 V. The UVR means the breaker trips if control voltage drops — common in safety circuits or remote-shutdown schemes. The auxiliary switches let you feed status back to a PLC or indication lamp without adding external relays. The 76.2 mm width (3 inches) is the same as many other 3-pole SENTRON breakers in the 3VA family, so swapping between ratings in the same panel slot is straightforward. Maximum power loss is 14.5 W. In a panel fed from a transformer with high available fault current, that number determines whether this breaker can be the main or a downstream device. The thermal-magnetic trip curve (not specified here, but standard for the 3VA line) handles overloads and short circuits. The trip indicator on the front tells you whether it tripped on overload or fault, which saves troubleshooting time on a down line.","metaTitle":"Siemens 3VA1020-3ED32-0BH0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1020-3ED32-0BH0 molded case circuit breaker, 20 A rated, 3-pole, 75.6 kA interrupting 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":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"7.5 kA","at 690 V":"7.5 kA","at 40 °C":"20 A","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"20 A","at 60 °C":"19 A","at 65 °C":"19 A","at 70 °C":"19 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"Yes","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":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10203ED320AA0","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":"TM210","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","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","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":"N","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=205115&mlfb=3VA1020-3ED32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"What auxiliary switches come with this breaker?","answer":"It includes two auxiliary switches and one trip alarm switch (HQ configuration), plus an undervoltage release (UVR)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0BH0","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/3VA1020-3ED32-0BH0 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}}