{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV6021-4BA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV6021-4BA15","canonicalUrl":"https://aoctrl.com/siemens/3RV6021-4BA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4BA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV6021-4BA15, 20 A, Trip Class 10, 690 V, 3-pole, screw terminals, size S0, DIN rail mount.","salesMarkdown":"The Siemens 3RV6021-4BA15 is a SIRIUS motor protection circuit breaker, size S0, rated for 20 A operational current at 690 V AC-3. The magnetic short-circuit release handles fault clearing independently. Clearance requirements: 50 mm upwards and downwards, 30 mm at the sides, zero forwards or backwards. Screw-type terminals on both main and auxiliary circuits accept 2x (0.5…1.5 mm²) solid/stranded or 2x (0.75…2.5 mm²) with ferrules; AWG equivalents 2x (16…12) and 2x (14…8) for main contacts. Rated operational current of 20 A at AC-3 governs motor sizing — pair this breaker with a motor whose full-load current does not exceed 20 A. The 690 V rated insulation voltage and 6 kV surge voltage resistance cover industrial transient environments. The magnetic short-circuit trip responds instantaneously to fault currents, providing Type 2 coordination with upstream contactors when properly selected. Typical power loss of 8 W total — relevant for thermal management in densely populated enclosures. Operating temperature range -20 to +60 °C with 10-95% relative humidity; storage range -50 to +80 °C. Shock resistance 25g / 11 ms per IEC 60068-2-27. ## Integration & Compliance The 3-pole design (3 main poles) with transverse auxiliary switch configuration allows integration of early-warning or trip-indication contacts into the control circuit. Screw terminals with tightening torque 2…2.5 N·m for main contacts. Substance prohibitance date of 05/01/2012 aligns with RoHS and REACH compliance timelines. The IEC ratings (surge voltage, shock, humidity) indicate design for international standards compliance.","metaTitle":"Siemens 3RV6021-4BA15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV6021-4BA15 SIRIUS motor protection circuit breaker, 20 A rated current, Trip Class 10, 690 V, 3-pole, screw terminals, DIN rail mount. Active production, sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"96 mm","Width":"45 mm","Height":"97 mm","Upwards":"50 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"50 mm","Trip Class":"CLASS 10","At The Side":"30 mm","Rated Value":"690 V","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","Design Of The Product":"for motor protection","For Main Current Circuit":"screw-type terminals","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","power loss [W] total typical":"8 W","Substance Prohibitance (Date)":"05/01/2012","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"20 A","Design Of The Short-Circuit Trip":"magnetic","for AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"10 ... 95 %","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 kV","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","For Main Contacts With Screw-Type Terminals":"2 ... 2.5 N·m","shock resistance according to IEC 60068-2-27":"25g / 11 ms","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3 at 400 V rated value":"20 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"260 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","maximum short-circuit current breaking capacity (Icu) at AC at 400 V rated value":"55 kA","operating short-circuit current breaking capacity (Ics) at AC at 400 V rated value":"25 kA","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"13 ... 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/12422d0610aeae9905342e4b8eaf66bb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621279&mlfb=3RV6021-4BA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV6021-4BA15/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RV6021-4BA15 used for?","answer":"It is a motor protection circuit breaker for three-phase induction motors up to 20 A full-load current. The Trip Class 10 overload release protects against sustained overloads and locked rotor conditions, while the magnetic short-circuit trip clears fault currents. It is typically mounted on DIN rail in motor control centers or individual motor starter enclosures."},{"question":"What are the key dimensions for panel layout?","answer":"Width 45 mm, depth 96 mm, height 97 mm. Clearance: 50 mm above and below, 30 mm at sides, zero front/back. Mounts on 35 mm DIN rail per DIN EN 60715 in any position."},{"question":"Does the 3RV6021-4BA15 drop into a panel specified for the 3RV6021-4DA10?","answer":"The 3RV6021-4BA15 and 3RV6021-4DA10 share the same S0 frame size, DIN rail mounting, and screw terminal layout — they are mechanically interchangeable in the same panel cutout and busbar arrangement. The difference is in the overload setting range: the 4BA15 is set for 20 A, while the 4DA10 covers a different current range. Verify the motor FLA matches the breaker's setting range before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV6021-4BA15","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/3RV6021-4BA15 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}}