{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1342-4BC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1342-4BC10","canonicalUrl":"https://aoctrl.com/siemens/3RV1342-4BC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1342-4BC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker for starter combinations, 3RV1342-4BC10, 20 A continuous, 100 kA breaking at 400 V, 7.5 kW motor rating at 400 V, screw terminals, DIN rail mount, IP20 front, finger-safe.","salesMarkdown":"## Motor circuit breaker for starter combinations The 690 V rated voltage covers 480/575 V installations. Dimensions: 70 mm wide, 165 mm high, 174 mm deep — zero clearance needed at sides or rear, so it packs tight in a panel. Any mounting position. Finger-safe touch protection and IP20 on the front keep live parts covered during maintenance. ## Breaking capacity and environmental limits Breaking capacity drops with voltage: 100 kA at 240 V and 400 V, 30 kA at 500 V, 12 kA at 690 V. Shock rated 25g / 11 ms. Power dissipation 21 W hot, 7 W per pole. Listed as current production. RoHS compliance date 07/01/2006. No ground-fault or phase-failure detection built in. Auxiliary switch extension possible. Operating frequency max 15 operations per hour at AC-3.","metaTitle":"Siemens 3RV1342-4BC10 SIRIUS Circuit Breaker, 20 A, 100 kA a","metaDescription":"Siemens 3RV1342-4BC10 SIRIUS circuit breaker for starter combinations. 20 A continuous, 100 kA breaking at 400 V. 7.5 kW motor rating. DIN rail mount. Finger-safe. Current producti","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","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 DIN 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":"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":"magnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Operating 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=136264&mlfb=3RV1342-4BC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1342-4BC10/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1342-4BC10 and how do I get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What is 3RV1342-4BC10's listed depth?","answer":"174 mm."},{"question":"What conductor sizes does the main circuit accept?","answer":"Solid: 2x (2.5... 16 mm²). Stranded: 2x (10... 50 mm²) or 1x (10... 70 mm²). AWG: 2x (10... 1) or 1x (10... 2)."},{"question":"What compliance documentation does Siemens provide for 3RV1342-4BC10?","answer":"RoHS compliance dated 07/01/2006. Finger-safe touch protection and IP20 front. No ground-fault or phase-failure detection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1342-4BC10","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/3RV1342-4BC10 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}}