{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2142-4YA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2142-4YA10","canonicalUrl":"https://aoctrl.com/siemens/3RV2142-4YA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2142-4YA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2142-4YA10 motor protection circuit breaker, 93 A at 480/600 V, 50 kA breaking capacity at 400 V, Trip Class 10, screw terminals, DIN rail mount.","salesMarkdown":"## Motor Protection Circuit Breaker with Overload Relay Function Rated for 93 A at both 480 V and 600 V, this breaker handles motor loads up to 75 hp at 460/480 V and 100 hp at 575/600 V, making it suitable for medium-horsepower pump, fan, and conveyor applications in industrial panels. ## Breaking Capacity and Voltage Rating The 3RV2142-4YA10 delivers 100 kA breaking capacity at 240 V AC, dropping to 50 kA at 400 V, 5 kA at 500 V, and 3 kA at 690 V. The rated operational voltage spans 20 to 690 V, covering low-voltage motor circuits from small control transformers up to 690 V industrial supplies. Screw-type terminals on the main circuit accept 2x (2.5 to 16 mm²) solid or 2x (2.5 to 50 mm²) stranded, with a single conductor up to 70 mm² — flexible enough for the incoming supply and motor cable in a typical MCC bucket.","metaTitle":"Siemens 3RV2142-4YA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2142-4YA10 SIRIUS motor protection circuit breaker. 93 A at 480/600 V, 50 kA at 400 V, Trip Class 10. Phase failure detection. Current lifecycle stage. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Note":"1","Depth":"176 mm","Solid":"2x (2.5 ... 16 mm²)","Width":"90 mm","title":"3RV2142-4YA10","Height":"165 mm","Upwards":"150 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"150 mm","Trip Class":"CLASS 10","At The Side":"30 mm","Rated Value":"20 ... 690 V","description":"Circuit breaker size S3 for motor protection CLASS 10 with overload relay function A-release 75...93 A N-release 1300 A screw terminal Increased switching capacity 100 kA","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","Mounting Position":"any","Solid Or Stranded":"2x (2,5 ... 50 mm²), 1x (10 ... 70 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"20 hp","at 240 V rated value":"100 kA","at 400 V rated value":"50 kA","at 480 V rated value":"93 A","at 500 V rated value":"5 kA","at 600 V rated value":"93 A","at 690 V rated value":"3 kA","Design Of The Product":"For motor protection with overload relay function","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"7.5 hp","at 200/208 V rated value":"30 hp","at 220/230 V rated value":"40 hp","at 460/480 V rated value":"75 hp","at 575/600 V rated value":"100 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":"10 kA","at AC at 690 V rated value":"6 kA","Size Of The Circuit-Breaker":"S3","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"25 000","at AC in hot operating state":"39 W","at AC-3 at 400 V rated value":"93 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"25 000","Substance Prohibitance (Date)":"03/01/2017","at AC-3e at 400 V rated value":"93 A","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"93 A","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","For Main Contacts For Ring Cable Lug":"4.5 ... 6 N·m","Surge Voltage Resistance Rated Value":"8 kV","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"13 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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 %","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²), 1x (10 ... 50 mm²)","For Main Contacts With Screw-Type Terminals":"4.5 ... 6 N·m","with high demand rate according to SN 31920":"50 %","shock resistance according to IEC 60068-2-27":"25g / 11 ms Sinus","Electrical Endurance (Operating Cycles) Typical":"25 000","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","Size Of Contactor Can Be Combined Company-Specific":"S3","Outer Diameter Of The Usable Ring Cable Lug Maximum":"19 mm","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":"1 300 A","insulation voltage with degree of pollution 3 at AC rated value":"1 000 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"75 ... 93 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/caf4b51d72b8190c1e8d4112594eb9c5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629992&mlfb=3RV2142-4YA10"},"ai":{"faq":[{"question":"What is 3RV2142-4YA10's listed depth (176 mm) on this component line?","answer":"The 3RV2142-4YA10 has a depth of 176 mm, which is the dimension from the DIN rail mounting surface to the front of the device — important for enclosure depth planning."},{"question":"Will 3RV2142-4YA10 drop into a panel that was specified around 3RV2021-4NA25 without rewiring?","answer":"The 3RV2142-4YA10 is a physically larger device (90 mm wide, 165 mm high, 176 mm deep) compared to the 3RV2021 series breakers, so it will not drop into the same DIN rail footprint without panel rework. Terminal sizing also differs — the 3RV2142-4YA10 accepts up to 70 mm² stranded, while the 3RV2021 series typically maxes out at smaller conductors. Verify the existing wiring and panel space before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2142-4YA10","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/3RV2142-4YA10 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}}