{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-1AA25","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-1AA25","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-1AA25","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-1AA25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2021-1AA25, motor protection circuit breaker, 1.6 A at 480/600 V, Trip Class 10, 100 kA breaking capacity, spring-loaded terminals, screw and snap-on DIN rail mounting.","salesMarkdown":"Rated at 1.6 A at both 480 V and 600 V, it covers fractional-horsepower motors up to 1 hp at 460/480 V and 0.8 hp at 575/600 V. It detects phase failure as well as overload, so a single-phased motor won't cook on two legs. No ground-fault detection built in — that's a separate add-on or a different family member. Spring-loaded terminals on the main current circuit accept 2× 0.5 to 2.5 mm² solid or stranded wire — no screw clamping, so you save a turn per termination. Keep the strip length clean; whiskers under the spring cage cause intermittent faults down the road. Dimensions are 97 mm deep, 45 mm wide, 119 mm tall. The storage range is wider because it's not dissipating heat — that's the handling limit, not the running limit. Rated voltage covers 20 to 690 V AC, so it works on 24 V control transformers as well as 480 V motor circuits.","metaTitle":"Siemens 3RV2021-1AA25 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2021-1AA25 SIRIUS motor protection circuit breaker, 1.6 A at 480/600 V, Trip Class 10, 100 kA breaking capacity, spring terminals. Available to order, quoted on request.","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":"3RV2021-1AA25","Height":"119 mm","Upwards":"50 mm","at 24 V":"1 A","at 60 V":"0.15 A","Forwards":"0 mm","at 120 V":"0.5 A","at 125 V":"0.5 A","at 230 V":"0.5 A","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 1.1...1.6 A N-release 21 A Spring-type terminal Standard switching capacity with transverse auxiliary switches 1 NO+1 NC","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","at AC-3e maximum":"15 1/h","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"0.1 hp","at 240 V rated value":"100 kA","at 400 V rated value":"100 kA","at 480 V rated value":"1.6 A","at 500 V rated value":"100 kA","at 600 V rated value":"1.6 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":"spring-loaded terminals","at 460/480 V rated value":"1 hp","at 575/600 V rated value":"0.8 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":"100 kA","Design Of Screwdriver Shaft":"Diameter 3 mm","Size Of The Circuit-Breaker":"S0","Size Of The Screwdriver Tip":"3,0 x 0,5 mm","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":"1.6 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":"1.6 A","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"1.6 A","at AWG cables for main contacts":"2x (18 ... 8)","Design Of The Short-Circuit Trip":"magnetic","For Auxiliary And Control Circuit":"spring-loaded terminals","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 AWG cables for auxiliary contacts":"2x (20 ... 14)","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 (0.5 ... 1.5 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","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","with high demand rate according to SN 31920":"50 %","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","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","contact rating of auxiliary contacts according to UL":"C300 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"Fuse gL/gG: 10 A, miniature circuit breaker C 6 A (short-circuit current Ik < 400 A)","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"21 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":"1.1 ... 1.6 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=440141&mlfb=3RV2021-1AA25"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RV2021-1AA25?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels."},{"question":"When sourcing 3RV2021-1AA25, what's the closest functional alternative — 3RV2021-1GA25?","answer":"The 3RV2021-1GA25 is a sibling in the same SIRIUS family, but it uses screw terminals instead of spring-loaded terminals. The 3RV2021-1AA25 has spring terminals; if your panel was wired for screw clamps, the 1GA25 drops in without retooling. Otherwise, the 1AA25 fits the same DIN footprint and clearance envelope."},{"question":"What is 3RV2021-1AA25's listed depth (97 mm) on this component line?","answer":"Depth is 97 mm, width 45 mm, height 119 mm. Clearance: 50 mm above and below, 30 mm to the sides, zero forward or backward."},{"question":"Will 3RV2021-1AA25 drop into a panel that was specified around 3RV2021-1GA25 without rewiring?","answer":"It will fit the same DIN rail and clearance envelope, but the 1GA25 uses screw terminals while the 1AA25 uses spring-loaded terminals. If the panel wiring was prepared for screw clamps, you'll need to re-terminate for spring cages — same wire range, different tooling."},{"question":"What compliance documentation does Siemens provide for 3RV2021-1AA25?","answer":"As a current-production SIRIUS component, it carries standard Siemens compliance documentation including RoHS, REACH, and relevant IEC/EN standards. Specific certificates are available through the Siemens Industry Online Support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-1AA25","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/3RV2021-1AA25 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}}