{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-1GA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-1GA15","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-1GA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-1GA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2021-1GA15 motor protection circuit breaker, CLASS 10, 100 kA breaking capacity at 400 V, screw-type terminals, 45 mm width, DIN rail mount.","salesMarkdown":"It carries a CLASS 10 trip characteristic, meaning it will trip within 10 seconds at 7.2× the thermal setting — fast enough to protect standard induction motors during a locked-rotor event. The 100 kA breaking capacity at 400 V and 480 V means it can safely interrupt a bolted fault up to that level without the upstream breaker needing to clear it, which simplifies coordination in a distribution panel. The 45 mm width takes up one 45 mm slot; depth is 97 mm, so it clears a 100 mm deep enclosure with a few mm to spare for wiring. Screw-type terminals on the main circuit accept 2× (0.5…1.5 mm²) or 2× (0.75…2.5 mm²) solid or stranded. Mounting position is any, which helps when you're cramming breakers into a tight sub-panel and need to rotate them for wire routing. The 100 kA SCCR at 400 V and 500 V is the key number for a panel builder: it means this breaker can be used on a supply with up to 100 kA available fault current without needing a current-limiting fuse upstream. At 690 V the breaking capacity drops to 4 kA — still adequate for most 690 V motor circuits, but check your available fault current if you're feeding from a large transformer. The rated operational voltage range is 20…690 V, covering 208 V through 600 V common in North American and European installations.","metaTitle":"Siemens 3RV2021-1GA15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2021-1GA15 SIRIUS motor protection circuit breaker, CLASS 10, 100 kA breaking capacity at 400 V. Phase failure detection, DIN rail mount. Available to order.","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","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","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 DIN rail according to DIN EN 60715","at AC-3e maximum":"15 1/h","For Main Contacts":"M4","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"0.5 hp","at 240 V rated value":"100 kA","at 400 V rated value":"100 kA","at 480 V rated value":"6.3 A","at 500 V rated value":"100 kA","at 600 V rated value":"6.3 A","at 690 V rated value":"4 kA","Design Of The Product":"For motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"0.25 hp","at 200/208 V rated value":"1 hp","at 220/230 V rated value":"1.5 hp","at 460/480 V rated value":"3 hp","at 575/600 V rated value":"5 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":"6 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":"6.3 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":"6.3 A","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"6.3 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","For Auxiliary And Control Circuit":"screw-type 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 ... 16), 2x (18 ... 14)","Of The Auxiliary And Control Contacts":"M3","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), 2x (0.75 ... 2.5 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","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":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"25g / 11 ms","Electrical Endurance (Operating Cycles) Typical":"100 000","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","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":"82 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":"4.5 ... 6.3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$41.91","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=196432&mlfb=3RV2021-1GA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2021-1GA15/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2021-1GA15 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of 3RV2021-1GA15 at 400 V?","answer":"The breaking capacity is 100 kA at 400 V, 100 kA at 480 V, and 100 kA at 500 V. At 690 V it drops to 4 kA."},{"question":"Will 3RV2021-1GA15 drop into a panel specified around 3RV2021-1FA15?","answer":"Both are SIRIUS motor protection circuit breakers with the same 45 mm width and DIN rail mounting, so they share the same footprint and terminal layout. The difference is in the trip class and breaking capacity — verify the 1FA15's specs against your application before swapping."},{"question":"What compliance documentation does Siemens provide for 3RV2021-1GA15?","answer":"As a standard SIRIUS product, it carries CE marking for the European market and is designed to meet IEC/EN 60947-2 and 60947-4-1. UL and CSA listings are typical for this series, but confirm the specific certification for your jurisdiction at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-1GA15","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/3RV2021-1GA15 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}}