{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2142-4HA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2142-4HA10","canonicalUrl":"https://aoctrl.com/siemens/3RV2142-4HA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2142-4HA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2142-4HA10 motor protection circuit breaker, Class 10, 100 kA breaking capacity at 240 V AC, 90 mm wide, screw and snap-on 35 mm DIN rail mount.","salesMarkdown":"## Breaking capacity and motor sizing Rated breaking capacity reaches 100 kA at 240 V AC, 50 kA at 400 V, and 5 kA at 690 V. For motor sizing, the breaker covers 10 hp at 230 V, 20 hp at 220/230 V, 40 hp at 460/480 V, and 50 hp at 575/600 V — spanning NEMA frame sizes from small pumps up to 50 hp conveyors on 480 V lines. Mounts in any position. The 90 mm width and 165 mm height fit standard MCC buckets or subpanels. Depth is 176 mm — verify enclosure depth if a gland plate or rear duct is tight. ## Environmental and wiring Solid or stranded wire: 2x (2.5…16 mm²) for the main circuit, or 1x (10…70 mm²) for larger feeds. The screw terminals accept up to 50 mm² stranded — common for 50 A branch circuits. For current pricing and availability, submit an RFQ — confirmation and lead time are provided at quote time. No formal successor has been announced; the 3RV2 series remains the active SIRIUS motor-protection platform.","metaTitle":"Siemens 3RV2142-4HA10 SIRIUS Circuit Breaker, Class 10, 100","metaDescription":"Siemens 3RV2142-4HA10 SIRIUS motor protection circuit breaker, Class 10 trip, 100 kA at 240 V, 90 mm wide, DIN rail mount. Sourced to order — request RFQ.","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":"3RV2142-4HA10","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 36...50 A N-release 650 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":"10 hp","at 240 V rated value":"100 kA","at 400 V rated value":"50 kA","at 480 V rated value":"50 A","at 500 V rated value":"7.5 kA","at 600 V rated value":"50 A","at 690 V rated value":"5 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":"5 hp","at 200/208 V rated value":"15 hp","at 220/230 V rated value":"20 hp","at 460/480 V rated value":"40 hp","at 575/600 V rated value":"50 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":"15 kA","at AC at 690 V rated value":"10 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":"27 W","at AC-3 at 400 V rated value":"50 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":"50 A","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"50 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":"9 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":"650 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":"36 ... 50 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/371f0f5f2af1c22ac17c54fa5a0bb20b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629987&mlfb=3RV2142-4HA10"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RV2142-4HA10?","answer":"Submit an RFQ through the storefront. Availability and current pricing are confirmed at quote time — no online stock figures are published for this line."},{"question":"What is the closest functional alternative to 3RV2142-4HA10?","answer":"The 3RV2021-4NA25 is a smaller-frame SIRIUS motor-protection breaker (45 mm wide vs 90 mm) with lower breaking capacity and lower horsepower ratings. It will not drop into the same panel footprint without rewiring and re-drilling the DIN rail. Use it only if the current and fault-current requirements fit the smaller frame."},{"question":"What is the Note 1 on this component?","answer":"The evidence lists a Note value of 1, which is a manufacturer internal annotation — no additional detail is published in the spec record."},{"question":"What is the depth of 3RV2142-4HA10?","answer":"176 mm. That is the body depth; clearance forward and backward is zero, so the enclosure depth must accommodate the full 176 mm plus wiring space."},{"question":"What compliance documentation is available for 3RV2142-4HA10?","answer":"The evidence does not list specific RoHS, REACH, UL, or IEC certifications for this order code. Standard SIRIUS documentation applies — verify with the manufacturer or request compliance declarations at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2142-4HA10","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/3RV2142-4HA10 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}}