{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-0GA10-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-0GA10-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-0GA10-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-0GA10-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, size S0, Trip Class 10, 45 mm wide, screw and snap-on DIN rail mounting, phase failure detection.","salesMarkdown":"The Siemens 3RV2021-0GA10-ZW96 is a SIRIUS motor protection circuit breaker in size S0, designed to protect three-phase motors against overload, short-circuit, and phase failure. Its Trip Class 10 means it trips within 10 seconds at 7.2× the thermal setting — fast enough to protect a motor winding during a stall without nuisance tripping on a normal start. Phase failure detection is built in, so a lost leg on the line side drops the load immediately rather than letting the motor single-phase and burn. ## Mounting and panel fit Width is 45 mm, depth 97 mm, height 97 mm. The breaker mounts on a 35 mm DIN rail per DIN EN 60715 with either a screw or snap-on fastening — a panel builder can clip it onto the rail without tools or bolt it for vibration resistance. Clearance requirements: 50 mm above and below, 30 mm at the sides, zero forward or backward. That means it fits a standard 200 mm deep enclosure with room for wiring ducts. Screw-type terminals on the main circuit accept up to 2× 10 mm² stranded or solid. ## Operating conditions Rated operating voltage spans 20 to 690 V. Ambient temperature during operation is -20 to +60 °C, with temperature compensation active across that same range so the thermal trip curve stays accurate regardless of cabinet heat. Storage and transport range is -50 to +80 °C. Maximum switching rate at AC-3 duty is 15 operations per hour.","metaTitle":"Siemens 3RV2021-0GA10-ZW96 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV2021-0GA10-ZW96 SIRIUS motor protection circuit breaker, size S0, Trip Class 10, 45 mm wide, screw and snap-on DIN rail mount. Phase failure detection. Available to orde","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":"3RV2021-0GA10-ZW96","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 0.45...0.63 A N-release 8.2 A Screw terminal Standard switching capacity Multi-unit packaging Pack = 24 units","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":"0.1 kW","at 240 V rated value":"100 kA","at 400 V rated value":"100 kA","at 480 V rated value":"0.63 A","at 500 V rated value":"100 kA","at 600 V rated value":"0.63 A","at 690 V rated value":"100 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 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":"100 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":"0.63 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":"0.63 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":"8.2 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":"0.45 ... 0.63 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=200378&mlfb=3RV2021-0GA10-ZW96"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RV2021-0GA10-ZW96?","answer":"Submit an RFQ through the storefront. Availability and current pricing are confirmed at quote time against independent distribution channels."},{"question":"What is the closest functional alternative to 3RV2021-0GA10-ZW96?","answer":"The 3RV2011-0AA10 is a size S0 motor protection circuit breaker from the same SIRIUS family, also Trip Class 10. The key difference is the 3RV2021-0GA10-ZW96 includes phase failure detection; the 3RV2011-0AA10 does not. If phase loss protection is required for the application, the 3RV2021-0GA10-ZW96 is the correct choice."},{"question":"What are the mounting dimensions for 3RV2021-0GA10-ZW96?","answer":"Width is 45 mm, depth 97 mm, height 97 mm. Clearance: 50 mm above and below, 30 mm at sides, zero forward and backward. Mounts on 35 mm DIN rail per DIN EN 60715."},{"question":"Will 3RV2021-0GA10-ZW96 drop into a panel specified around 3RV2011-0AA10?","answer":"Yes, both are size S0 with the same 45 mm width and DIN rail mounting. The footprint and terminal layout are identical. The only functional difference is the phase failure detection on the 3RV2021-0GA10-ZW96. No rewiring is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-0GA10-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/3RV2021-0GA10-ZW96 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}}