{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-1BA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-1BA10","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-1BA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-1BA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2021-1BA10 motor protection circuit breaker, Class 10 trip, 100 kA breaking capacity at 400 V AC, 45 mm width, screw and snap-on DIN rail mounting.","salesMarkdown":"## Motor protection circuit breaker for panel integration The 97 mm depth keeps the device within typical enclosure clearances. ## Breaking capacity and voltage range Rated for 20 to 690 V AC, the 3RV2021-1BA10 delivers 100 kA breaking capacity at 240 V, 400 V, and 500 V AC, dropping to 10 kA at 690 V AC. This covers most industrial motor branch circuits up to 690 V without requiring upstream fuses for fault currents below those thresholds. ## Motor power ratings and trip class The Class 10 trip characteristic matches standard induction motor starting profiles, allowing up to 15 switching operations per hour at AC-3 duty. Motor power ratings reach 0.13 hp at 230 V, 1 hp at 460/480 V, and 1 hp at 575/600 V, making it suited for fractional-horsepower pumps, fans, and conveyors in light industrial panels. ## Phase failure detection and wiring Built-in phase failure detection trips the breaker on loss of any phase, protecting motors from single-phasing damage. Main circuit terminals are M4 screw-type, accepting 2x (1 to 2.5 mm²) or 2x (2.5 to 10 mm²) solid or stranded conductors. A 5 to 6 mm screwdriver shaft is required for termination. Mountable in any position, with 50 mm clearance required above and below, 30 mm at the sides, and 0 mm forward/backward clearance. No ground fault detection is included.","metaTitle":"Siemens 3RV2021-1BA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2021-1BA10 SIRIUS motor protection circuit breaker, Class 10 trip, 100 kA breaking capacity at 400 V AC, 45 mm wide, DIN rail mount. Current production. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"97 mm","Width":"45 mm","title":"3RV2021-1BA10","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":"20 ... 690 V","description":"Circuit breaker size S0 for motor protection, CLASS 10 A-release 1.4...2 A N-release 26 A screw terminal Standard switching capacity","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","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","at AC-3e maximum":"15 1/h","For Main Contacts":"M4","Mounting Position":"any","Solid Or Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"0.13 hp","at 240 V rated value":"100 kA","at 400 V rated value":"100 kA","at 480 V rated value":"2 A","at 500 V rated value":"100 kA","at 600 V rated value":"2 A","at 690 V rated value":"10 kA","Design Of The Product":"For motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","at 460/480 V rated value":"1 hp","at 575/600 V rated value":"1 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"100 kA","at AC at 500 V rated value":"100 kA","at AC at 690 V rated value":"10 kA","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Circuit-Breaker":"S0","Size Of The Screwdriver Tip":"Pozidriv size 2","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"7.25 W","at AC-3 at 400 V rated value":"2 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"100 000","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"2 A","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"2 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Handle","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"2.4 W","With Side-By-Side Mounting At The Side":"0 mm","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","with low demand rate according to SN 31920":"50 FIT","For Main Contacts With Screw-Type Terminals":"2 ... 2.5 N·m","with high demand rate according to SN 31920":"50 %","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","shock resistance according to IEC 60068-2-27":"25g / 11 ms","Electrical Endurance (Operating Cycles) Typical":"100 000","Size Of Contactor Can Be Combined Company-Specific":"S00, S0","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":"26 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"1.4 ... 2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$30.01 – $83.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/69e3aae776a3a972c11948ccacc118a3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=13122&mlfb=3RV2021-1BA10"},"ai":{"faq":[{"question":"What are the key ratings for the 3RV2021-1BA10?","answer":"Class 10 trip, 100 kA breaking capacity at 400 V AC, rated voltage range 20 to 690 V AC, motor power 1 hp at 460/480 V and 575/600 V, 45 mm wide, DIN rail mount."},{"question":"What is the width and depth of the 3RV2021-1BA10?","answer":"Width is 45 mm, depth is 97 mm, height is 97 mm. This fits standard 45 mm-wide DIN-rail slots in control panels."},{"question":"Does the 3RV2021-1BA10 include phase failure protection?","answer":"Yes, phase failure detection is built in. Ground fault detection is not included."},{"question":"What wire sizes does the 3RV2021-1BA10 accept?","answer":"Main terminals accept 2x (1 to 2.5 mm²) or 2x (2.5 to 10 mm²) solid or stranded conductors, terminated with M4 screws requiring a 5 to 6 mm screwdriver shaft."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-1BA10","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/3RV2021-1BA10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}