{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-1DA10-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-1DA10-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-1DA10-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-1DA10-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2021-1DA10-ZW96 motor protection circuit breaker, Class 10 trip, 100 kA breaking capacity at 400 V, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"Clearance requirements: 50 mm above and below, 30 mm to the side, zero forward or backward — so it fits tight against a backpanel or gland plate as long as vertical airflow is respected. ## Breaking capacity across voltage levels Breaking capacity is voltage-dependent: 100 kA at 240 V and 400 V AC, dropping to 10 kA at 690 V. This is a motor-protective device, not a general-purpose distribution breaker — the 100 kA rating at 400 V means it can be installed on a high-fault panel without requiring an upstream current-limiting fuse, as long as the motor full-load current falls within the adjustable thermal range. ## Environmental and operational limits Rated for operation between -20 °C and +60 °C with temperature compensation active across that same span. Storage and transport range extends from -50 °C to +80 °C. Any mounting position is acceptable. The unit includes phase failure detection but no ground fault detection — if ground fault protection is required on the motor circuit, it must be added externally via a separate module or upstream device. Lifecycle stage is listed as current, meaning the manufacturer has not issued a phase-out notice.","metaTitle":"Siemens 3RV2021-1DA10-ZW96 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV2021-1DA10-ZW96 SIRIUS motor protection circuit breaker. Class 10 trip, 100 kA breaking at 400 V, screw/snap-on DIN rail. Sourced to order. Request quote.","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","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","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 standard mounting rail according to DIN EN 60715","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":"0.25 hp","at 240 V rated value":"100 kA","at 400 V rated value":"100 kA","at 480 V rated value":"3.2 A","at 500 V rated value":"100 kA","at 600 V rated value":"3.2 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","Temperature Compensation":"-20 ... +60 °C","at 110/120 V rated value":"0.1 hp","at 200/208 V rated value":"0.5 hp","at 220/230 V rated value":"0.75 hp","at 460/480 V rated value":"2 hp","at 575/600 V rated value":"2 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":"3.2 A","Of Auxiliary Contacts Typical":"100 000","Substance Prohibitance (Date)":"10/01/2009","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"3.2 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","Between Main And Auxiliary Circuit":"400 V","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","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 (Switching 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":"42 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.2 ... 3.2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=234636&mlfb=3RV2021-1DA10-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2021-1DA10-ZW96/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2021-1DA10-ZW96?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3RV2021-1DA10-ZW96 at 400 V?","answer":"100 kA at 400 V AC, which is the highest rating across its voltage range and covers most industrial distribution panels."},{"question":"What does Class 10 trip mean for motor protection?","answer":"Class 10 means the breaker trips within 10 seconds at 7.2× the thermal setting, fast enough to protect standard motors during a locked-rotor event without tripping on normal starting inrush."},{"question":"Will 3RV2021-1DA10-ZW96 drop into a panel specified around 3RV1011-0GA10 without rewiring?","answer":"Both are SIRIUS motor protection breakers with similar DIN-rail footprint and screw terminals, but the 3RV2021-1DA10-ZW96 has a 45 mm width versus the 3RV1011-0GA10's 45 mm width — same slot size. Terminal capacity accepts 2x (1–2.5 mm²) solid/stranded and 2x (2.5–10 mm²), so existing wiring should transfer. Verify the thermal setting range matches your motor FLA before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-1DA10-ZW96","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/3RV2021-1DA10-ZW96 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}}