{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-4PA10-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-4PA10-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-4PA10-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-4PA10-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV2021-4PA10-ZW96, Class 10 trip, 10 kA breaking capacity at 400 V, phase failure detection, screw and snap-on DIN rail mount.","salesMarkdown":"That's a standard feature on SIRIUS motor-protective breakers, not an add-on module. The 45 mm width means it occupies one standard 45 mm-wide module slot on the rail — plan your panel fill factor accordingly. Depth is 97 mm, which fits most standard enclosures without a deep gland plate. Clearance requirements: 70 mm upwards and downwards, 30 mm at the side, 0 mm forwards and backwards. That 0 mm backwards clearance means it can sit flush against a back panel or busbar support. Terminals are screw-type for the main circuit, accepting 2x (1…2.5 mm²) or 2x (2.5…10 mm²) solid or stranded. Use ferrules on stranded for a reliable connection under vibration.","metaTitle":"Siemens 3RV2021-4PA10-ZW96 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV2021-4PA10-ZW96 motor protection circuit breaker, Class 10 trip, 10 kA at 400 V, phase failure detection. DIN rail mount. Sourced to order against RFQ.","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":"70 mm","Forwards":"0 mm","at 400 V":"gG 63 A","at 500 V":"gG 63 A","at 690 V":"gG 63 A","Backwards":"0 mm","Downwards":"70 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 ... +40 °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":"5 hp","at 240 V rated value":"100 kA","at 400 V rated value":"10 kA","at 480 V rated value":"36 A","at 500 V rated value":"3 kA","at 600 V rated value":"36 A","at 690 V rated value":"2 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":"3 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"25 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"20 kA","at AC at 500 V rated value":"6 kA","at AC at 690 V rated value":"3 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":"16.25 W","at AC-3 at 400 V rated value":"36 A","Of Auxiliary Contacts Typical":"100 000","Substance Prohibitance (Date)":"03/01/2017","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"36 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":"5.4 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":"432 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":"30 ... 36 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=182521&mlfb=3RV2021-4PA10-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2021-4PA10-ZW96/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2021-4PA10-ZW96 and how do I get a price?","answer":"We source this part to order against an RFQ. Submit a request through our quote system; availability and current pricing are confirmed at quote time."},{"question":"What is 3RV2021-4PA10-ZW96's listed depth (97 mm) on this component line?","answer":"The depth is 97 mm. That's the dimension from the DIN rail mounting surface to the front face of the breaker."},{"question":"What is 3RV2021-4PA10-ZW96's listed width (45 mm) on this component line?","answer":"The width is 45 mm, occupying one standard 45 mm module slot on the DIN rail."},{"question":"Will 3RV2021-4PA10-ZW96 drop into a panel that was specified around 3RV1011-1HA10 without rewiring?","answer":"The 3RV2021-4PA10-ZW96 shares the same 45 mm width and DIN rail mounting as the 3RV1011-1HA10, so it fits the same rail footprint. However, verify the terminal ratings and wiring size — the 3RV2021 accepts up to 10 mm² on the main terminals, which may differ from the 3RV1011's specification. Check the nameplate ratings for your motor load before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-4PA10-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/3RV2021-4PA10-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}}