{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1042-4BA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1042-4BA10","canonicalUrl":"https://aoctrl.com/siemens/3RV1042-4BA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1042-4BA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1042-4BA10 motor protection circuit breaker, 20 A continuous, Class 10 trip, 100 kA breaking at 400 V AC, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens 3RV1042-4BA10 is a SIRIUS motor protection circuit breaker rated for 20 A continuous current with 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 from locked-rotor heat buildup without nuisance trips on normal starting inrush. Rated motor power is 7.5 kW at 400 V — that maps to a typical 10 HP or 15 A full-load motor on a 400 V line. The screw terminals accept solid 2x (2.5…16 mm²) and stranded up to 2x (10…50 mm²), so it lands comfortably on the wire sizes a 20 A motor circuit uses. Mounting position any — no derating needed for horizontal or vertical orientation. Zero clearance at the sides and back means you can pack it tight against other devices in a row without heat-spacing gaps. Footprint is 70 mm wide × 165 mm tall × 174 mm deep. That 174 mm depth is the dimension to watch when sizing the gland plate or enclosure depth — it's deeper than a typical contactor, so a shallow 200 mm enclosure may be tight with wiring clearance. Shock rated at 25g for 11 ms. Front IP20 — fine for a panel interior, not for washdown zones. RoHS compliance date listed as July 1, 2006, which aligns with the EU RoHS directive effective date. No UL or CSA marks in the evidence, but the IEC ratings (690 V, 100 kA) are standard for European-spec panels.","metaTitle":"Siemens 3RV1042-4BA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1042-4BA10 SIRIUS motor protection circuit breaker. 20 A continuous, Class 10, 100 kA breaking at 400 V. Active production. Quoted to order against RFQ.","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 (2.5 ... 16 mm²)","Width":"70 mm","Height":"165 mm","Stranded":"2x (10 ... 50 mm²), 1x (10 ... 70 mm²)","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":"7.5 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":"100 kA","at AC at 500 V rated value":"30 kA","at AC at 690 V rated value":"12 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"21 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"20 A","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 AC in hot operating state per pole":"7 W","Finely Stranded With Core End Processing":"2x (2.5 ... 35 mm²), 2.5 ... 50 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":"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":"14 ... 20 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=136436&mlfb=3RV1042-4BA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1042-4BA10/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does the 3RV1042-4BA10 accept?","answer":"Solid wires 2x (2.5…16 mm²) and stranded up to 2x (10…50 mm²) or 1x (10…70 mm²)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1042-4BA10","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/3RV1042-4BA10 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}}