{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1041-4LA15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1041-4LA15","canonicalUrl":"https://aoctrl.com/siemens/3RV1041-4LA15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1041-4LA15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1041-4LA15 motor protection circuit breaker, 90 A, 45 kW at 400 V AC, CLASS 10, 50 kA breaking capacity, screw terminals, DIN rail mount.","salesMarkdown":"## What this 90 A SIRIUS breaker does on a motor branch The Siemens 3RV1041-4LA15 is a SIRIUS motor protection circuit breaker rated for 90 A continuous current, sized to protect a 45 kW motor at 400 V AC in AC-3 duty. It combines a thermal-magnetic overload relay and a short-circuit trip in one package, so a single device handles both running overload protection and fault interruption on the motor branch. No ground-fault detection on this variant — that's handled separately if the installation requires it. ## Breaking capacity and fault coordination Rated breaking capacity varies with line voltage: 100 kA at 240 V AC, 50 kA at 400 V AC, 8 kA at 500 V AC, and 5 kA at 690 V AC. Maximum operating frequency in AC-3 duty is 15 switching cycles per hour — fine for a pump or fan that starts a few times an hour, but not for a high-cycling application like a press or a crane. ## Mounting and wiring for a panel The 70 mm width and 165 mm height fit standard motor-starter footprints; depth is 174 mm, so allow that clearance behind the panel door. Main circuit terminals accept solid conductors 2× (0.5…1.5 mm²) and 2× (0.75…2.5 mm²), or stranded 2× (10…50 mm²) and 1× (10…70 mm²). Screw-type box terminals for the main circuit; auxiliary and control circuits also use screw terminals. The auxiliary switch is transverse-mounted and field-addable — the product extension is supported. Front-side IP20 protection means it's touch-safe for the panel interior but not rated for washdown — keep it inside the enclosure.","metaTitle":"Siemens 3RV1041-4LA15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1041-4LA15 SIRIUS motor protection circuit breaker, 90 A continuous, 45 kW at 400 V AC, CLASS 10 trip, 50 kA breaking capacity at 400 V. Active production, sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"174 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"70 mm","Height":"165 mm","at 24 V":"1 A","at 60 V":"0.15 A","Stranded":"2x (10 ... 50 mm²), 1x (10 ... 70 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 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":"45 kW","Design Of The Product":"for motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","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":"8 kA","at AC at 690 V rated value":"5 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"38 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"90 A","Design Of The Auxiliary Switch":"transverse","at AWG cables for main contacts":"2x (10 ... 1), 1x (10 ... 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 AWG cables for auxiliary contacts":"2x (18 ... 14)","at AC in hot operating state per pole":"12.7 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":"90 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 (Switching Cycles) Of The Main Contacts Typical":"50 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"70 ... 90 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=479593&mlfb=3RV1041-4LA15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1041-4LA15/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1041-4LA15 at 400 V?","answer":"50 kA at 400 V AC, which covers most industrial panel fault-current levels. At 240 V it's 100 kA; at 690 V it drops to 5 kA."},{"question":"What motor power does 3RV1041-4LA15 protect at 400 V?","answer":"45 kW at 400 V AC in AC-3 duty, with a 90 A continuous current rating. Trip class is CLASS 10."},{"question":"Will 3RV1041-4LA15 drop into a panel specified around 3RV2021-4NA25?","answer":"Both are SIRIUS motor protection breakers on the same 35 mm DIN-rail footprint, but the 3RV2021 series is a different current range. The 3RV1041-4LA15 is a higher-rated device (90 A vs the 3RV2021's typical 32–45 A range). Check your BOM's required continuous current and motor FLA before substituting — the physical rail fit is the same, but the protection settings and terminal sizes differ."},{"question":"What compliance documentation does Siemens provide for 3RV1041-4LA15?","answer":"The part carries a RoHS substance prohibition date of July 1, 2006, indicating RoHS compliance. Standard Siemens documentation includes CE declaration and UL/CSA recognition per the SIRIUS product family; specific cert numbers are on the nameplate."},{"question":"Where can I buy 3RV1041-4LA15?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1041-4LA15","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/3RV1041-4LA15 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}}