{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1331-4BC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1331-4BC10","canonicalUrl":"https://aoctrl.com/siemens/3RV1331-4BC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1331-4BC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1331-4BC10 circuit breaker for starter combinations, 3-pole, 20 A, 50 kA breaking capacity at 400 V AC, screw terminals, DIN EN 50022 rail mount.","salesMarkdown":"## What this breaker does in the panel Rated 20 A continuous and 7.5 kW motor power at 400 V, it handles the common 4-pole induction motor range up to that output. The 3-pole design suits three-phase motor loads. Screw-type terminals for main and control circuits accept solid 2x (0.75…16 mm²) or stranded up to 2x (0.75…25 mm²) and even 1x 35 mm². That's enough for the load wiring on a 20 A motor branch. Finger-safe touch protection means no shock hazard during inspection with the panel open. ## Sourcing and lifecycle — a current-production spare RoHS compliance date is July 1, 2006, which covers the EU directive. The design carries IP20 front protection — finger-safe but not washdown-rated, so keep it inside the enclosure. Shock rated at 25g / 11 ms, fine for most industrial floor environments. The 3RV6021-4DA10 is a functionally similar SIRIUS circuit breaker but from a different series — typically the 3RV6 is a compact, higher-breaking variant for specific applications. The 3RV1331-4BC10 is the standard-duty choice for starter combinations at 20 A. If a panel was specified around the 3RV6021-4DA10, the 3RV1331-4BC10 will not drop in without checking the mounting footprint and terminal layout — the DIN rail clip is the same, but the depth (149 mm,) and width (55 mm,) may differ slightly. Best to verify the physical fit before swapping.","metaTitle":"Siemens 3RV1331-4BC10 SIRIUS Circuit Breaker, 20 A, 50 kA at","metaDescription":"Siemens SIRIUS 3RV1331-4BC10 circuit breaker for starter combinations. 20 A continuous, 50 kA breaking capacity at 400 V AC. 3-pole, screw terminals, DIN rail mount. Active product","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Solid":"2x (0.75 ... 16 mm²)","Width":"55 mm","Height":"140 mm","Stranded":"2x (0.75 ... 25 mm²), 1x (0.75 … 35 mm²)","Backwards":"0 mm","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 standard mounting 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":"7.5 kW","Design Of The Product":"for starter combinations","Ground Fault Detection":"No","Phase Failure Detection":"No","For Main Current Circuit":"screw-type terminals with box terminals","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"50 kA","at AC at 500 V rated value":"12 kA","at AC at 690 V rated value":"5 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"14.5 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"20 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 2)","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 AC in hot operating state per pole":"4.8 W","Finely Stranded With Core End Processing":"2x (0.75 ... 16 mm²), 0.75 ... 25 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":"20 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"magnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"50 000"}},"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=282885&mlfb=3RV1331-4BC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1331-4BC10/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this circuit breaker?","answer":"50 kA at 400 V AC, 100 kA at 240 V AC, 12 kA at 500 V AC, and 5 kA at 690 V AC. The 50 kA at 400 V is the rating that matters for most industrial 400 V distribution panels."},{"question":"Where can I buy the 3RV1331-4BC10 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. No stock count or price is published here."},{"question":"What wire sizes does the 3RV1331-4BC10 accept?","answer":"Solid conductors: 2x (0.75…16 mm²). Stranded: 2x (0.75…25 mm²) or 1x (0.75…35 mm²). Finely stranded with ferrule: 2x (0.75…16 mm²) or 0.75…25 mm². AWG equivalent: 2x (18…2) or 1x (18…2). Screw-type terminals with box terminals for the main circuit."},{"question":"Will the 3RV1331-4BC10 fit a panel designed for the 3RV6021-4DA10?","answer":"Not without checking. Both are SIRIUS circuit breakers on 35 mm DIN rail, but the 3RV1331-4BC10 has a depth of 149 mm and width of 55 mm. The 3RV6021-4DA10 may have different dimensions. Verify the mounting footprint and terminal layout before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1331-4BC10","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/3RV1331-4BC10 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}}