{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1DA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1DA15","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1DA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1DA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-1DA15 motor-protective circuit breaker, 3.2 A continuous rated current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, screw-type terminals, snap-on 35 mm DIN rail mount, IP20 front.","salesMarkdown":"The Siemens SIRIUS 3RV1021-1DA15 is a motor-protective circuit breaker rated for 3.2 A continuous current, designed for 1.1 kW motor loads at 400 V AC. Zero clearance required at the sides and rear — no derating for adjacent units in a dense panel. Screw-type terminals on both main and auxiliary circuits accept solid conductors up to 2x 2.5 mm² or stranded up to 2x 6 mm², which covers the wire sizes for a 3.2 A motor branch. ## Protection features and ratings No ground-fault detection, so that must be handled externally if needed. The auxiliary switch is a transverse design and the product extension allows adding an auxiliary switch block for remote status or PLC feedback. Shock resistance rated at 25g for 11 ms suits it for mobile or vibrating equipment. Operating frequency is limited to 15 operations per hour at AC-3 duty — fine for occasional start/stop, not for high-cycle jogging. The 3.2 A continuous rating with CLASS 10 trip makes this a direct fit for protecting a 1.1 kW motor at 400 V or smaller motors at lower voltages. For 24 V control circuits, the auxiliary contacts are rated 1 A; at 230 V they carry 0.5 A.","metaTitle":"Siemens 3RV1021-1DA15 SIRIUS Motor Circuit Breaker, 3.2 A, C","metaDescription":"Siemens SIRIUS 3RV1021-1DA15 motor-protective circuit breaker, 3.2 A continuous, CLASS 10 trip, 100 kA breaking at 400 V, IP20 front, DIN rail mount. Available to order, quoted on","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"96 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","Height":"97 mm","at 24 V":"1 A","at 60 V":"0.15 A","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","at 230 V":"0.5 A","Backwards":"0 mm","Trip Class":"CLASS 10","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","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 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"1.1 kW","Design Of The Product":"for motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","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":"8 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"7.25 W","Substance Prohibitance (Date)":"05/01/2012","Continuous Current Rated Value":"3.2 A","Design Of The Auxiliary Switch":"transverse","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AWG cables for auxiliary contacts":"2x (18 ... 14)","at AC in hot operating state per pole":"2.4 W","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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"3.2 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"thermomagnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Operating Cycles) Of The Main Contacts Typical":"100 000","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=301206&mlfb=3RV1021-1DA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1DA15/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1021-1DA15 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through our independent distribution network. Submit an RFQ with your quantity and target delivery window; we confirm availability and current pricing at quote time. No stock or price figures are published here because market conditions change daily."},{"question":"What is the closest functional second-source for 3RV1021-1DA15?","answer":"The 3RV2021-1FA15 is a peer in the same SIRIUS family but carries a higher 4 A continuous rating and different breaking capacities. For a direct drop-in replacement without rewiring, the 3RV1021-1DA15 is the correct order code for 3.2 A motor protection at 400 V. The 3RV2021-1FA15 would require recalculating the motor FLA setting and verifying the upstream coordination."},{"question":"What is the depth of 3RV1021-1DA15?","answer":"The depth is 96 mm. Combined with the 45 mm width and 97 mm height, it fits standard DIN-rail enclosures with typical 100 mm minimum depth."},{"question":"What compliance documentation does this part carry?","answer":"The substance prohibition date of 05/01/2012 confirms RoHS compliance from that date. The surge voltage resistance rated at 6,000 V indicates IEC 60947-2 coordination. The part is designed to IEC/EN 60947 standards for motor protection. Specific UL/CSA listing details are not in this record but are typically available on the manufacturer's declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1DA15","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/3RV1021-1DA15 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}}