{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV5331-4BC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV5331-4BC10","canonicalUrl":"https://aoctrl.com/siemens/3RV5331-4BC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV5331-4BC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker, size S2, for starter combinations, 3-pole, 20 A AC-3 at 400 V, 690 V rated, screw-type terminals, snap-on DIN rail mounting.","salesMarkdown":"It's a 3-pole device rated 20 A operational current at AC-3 (motor switching duty) at 400 V, with a maximum rated voltage of 690 V AC. The instantaneous short-circuit trip responds at 260 A, so it clears a fault fast enough to protect downstream contactor and wiring without needing a separate fuse. Dimensions: 55 mm wide, 140 mm high, 149 mm deep. The S2 frame size means it occupies the same footprint as other SIRIUS S2 breakers, so swapping in a panel that already has a 3RV2 or 3RV6 S2 is straightforward — same rail slot, same terminal spacing. The headline number is 20 A at AC-3, 400 V — that's the motor switching current, not the resistive heating current. The 260 A instantaneous magnetic trip means it won't nuisance-trip on inrush but will catch a bolted fault. Relative humidity during operation 10 to 95 %. Shock resistance tested to 25 g / 11 ms per IEC 60068-2-27. Installation altitude max 2 000 m above sea level. The substance prohibitance date of 07/01/2006 aligns with RoHS compliance scope — the part is RoHS-compliant as manufactured after that date.","metaTitle":"Siemens 3RV5331-4BC10 SIRIUS Circuit Breaker, 20 A AC-3, 690","metaDescription":"Siemens 3RV5331-4BC10 SIRIUS circuit breaker for starter combinations. 20 A AC-3 at 400 V, 690 V rated, 260 A instantaneous trip. Screw and snap-on DIN rail. Current production. Qu","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Width":"55 mm","title":"3RV5331-4BC10","Height":"140 mm","Upwards":"50 mm","Forwards":"140 mm","Backwards":"0 mm","Downwards":"50 mm","At The Side":"30 mm","Rated Value":"690 V","description":"Circuit breaker 20 A rated current 20 A, for starter combination, short-circuit release 260 A, screw terminal standard switching capacity SIRIUS","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 50022","Mounting Position":"any","Solid Or Stranded":"2x (0.75 ... 25 mm²), 1x (0.75 ... 35 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","Design Of The Product":"for starter combinations","For Main Current Circuit":"screw-type terminals with box terminals","Size Of The Circuit-Breaker":"S2","at AC-3 rated value maximum":"690 V","power loss [W] total typical":"12 W","Substance Prohibitance (Date)":"07/01/2006","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"20 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 2)","Design Of The Short-Circuit Trip":"magnetic","Relative Humidity During Operation":"10 ... 95 %","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 kV","Finely Stranded With Core End Processing":"2x (0.75 ... 16 mm²), 1x (0.75 ... 25 mm²)","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","shock resistance according to IEC 60068-2-27":"25g / 11 ms","operational current at AC-3 at 400 V rated value":"20 A","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":"260 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","breaking capacity maximum short-circuit current (Icu) at AC at 400 V rated value":"50 kA","breaking capacity operating short-circuit current (Ics) at AC at 400 V rated value":"25 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8bc779e6bcf68098b0c74082634c8229.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621573&mlfb=3RV5331-4BC10"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RV5331-4BC10?","answer":"Within the SIRIUS S2 family, the 3RV6021-4DA10 and 3RV2023-4CA10 share the same frame size, DIN rail mounting, and similar AC-3 current ratings. The 3RV5331-4BC10 is a current-production variant; the others may have different trip characteristics or auxiliary contact configurations. Verify coordination before substituting."},{"question":"Where can I buy 3RV5331-4BC10 and how is it quoted?","answer":"We source and quote this part to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here because both fluctuate with supply. Submit an RFQ for your volume and delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV5331-4BC10","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/3RV5331-4BC10 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}}