{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED36-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED36-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED36-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED36-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED36-0CH0, molded case circuit breaker, 3-pole, 20 A rated at 40 °C, 75.6 kA breaking capacity at 240 V AC, undervoltage release, 2 aux switches + trip alarm.","salesMarkdown":"## SENTRON 3VA line protection breaker with undervoltage release The Siemens SENTRON 3VA1020-3ED36-0CH0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a continuous 20 A at 40 °C and holding that rating through 55 °C before a single-amp derate at 60 °C. Breaking capacity hits 75.6 kA at 240 V AC, stepping down to 52.5 kA at 415 V and 32 kA at 440 V — enough headroom for most industrial service-entrance or feeder panels where the available fault current is known. The 70 mm depth and 76.2 mm width fit standard 3-pole MCCB panel cutouts, so it drops into existing SENTRON or older 3WL/3VL footprints without re-drilling the mounting plate. If your enclosure runs hotter (say 60 °C), you lose 1 A; at 70 °C you're still at 19 A, so the derate curve is shallow. ## Integrated auxiliaries and undervoltage release This variant ships with two auxiliary switches plus a trip alarm switch (HQ) factory-installed, and an undervoltage release (UVR) built in. The aux switches give you remote status: one set for the main contact position, one for the trip alarm. No communication module on this order code, so it's a standalone breaker — status goes back to the PLC via hardwired inputs, not fieldbus.","metaTitle":"Siemens 3VA1020-3ED36-0CH0 SENTRON MCCB, 20A, 75.6kA at 240V","metaDescription":"Siemens SENTRON 3VA1020-3ED36-0CH0 molded case circuit breaker, 20A rated, 75.6kA breaking at 240V AC. 3-pole with UVR and aux switches. Current lifecycle, sourced 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":"3VA10203ED360AA0","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":"3VA9608-0BB24","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":"box terminal on both sides","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=140859&mlfb=3VA1020-3ED36-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED36-0CH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1020-3ED36-0CH0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; pricing and stock levels are confirmed at quote time."},{"question":"Will 3VA1020-3ED36-0CH0 drop into a panel specified around 3VA1020-3ED36-0AA0 without rewiring?","answer":"Yes, the 70 mm depth, 76.2 mm width, and 130 mm height are identical across the 3VA base frame, so the -0CH0 variant fits the same panel cutout and bus bar spacing as the -0AA0. The difference is in the internal release: -0CH0 adds the undervoltage release and the specific aux switch configuration."},{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V."},{"question":"What compliance documentation is available for 3VA1020-3ED36-0CH0?","answer":"As a Siemens SENTRON product, the 3VA series carries UL, CSA, and IEC certifications. Specific documentation including RoHS and REACH declarations is available through the manufacturer's standard documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED36-0CH0","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/3VA1020-3ED36-0CH0 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}}