{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2901-2F","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2901-2F","canonicalUrl":"https://aoctrl.com/siemens/3RV2901-2F","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2901-2F","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, transverse front-mount, 2 NO, spring-loaded terminals, for 3RV2 circuit breakers sizes S00/S0/S2/S3.","salesMarkdown":"The Siemens 3RV2901-2F is a SIRIUS auxiliary switch designed for transverse mounting on the front of 3RV2 circuit breakers in frame sizes S00, S0, S2, and S3. It provides two normally open (NO) instantaneous contacts, with spring-loaded terminals for the auxiliary and control circuit connections. Rated switching capacity varies by voltage: 1 A at 24 V, 0.3 A at 48 V, 0.15 A at 60 V, and 0.5 A at 230 V. The AC-12 maximum operational current is 2.5 A. These ratings define the maximum load the contacts can break under the respective conditions — useful for sizing the control circuit load, not the main power path. The spring-loaded terminals accept solid or stranded conductors from 0.5 to 2.5 mm² (2x 0.5...2.5 mm² solid, 2x 0.5...1.5 mm² finely stranded with or without ferrule). AWG equivalents are 20 to 14 for the auxiliary contacts. The 17 mm depth and 45 mm width match the breaker's front profile — no extra DIN rail space required beyond the breaker itself. ## Integration Notes Mounts via plug-in fixing directly onto the front of the 3RV2 circuit breaker — no separate DIN rail footprint. The transverse orientation places the two NO contacts on the side of the breaker, accessible for wiring without removing the breaker from the panel. The part is RoHS-compliant per the substance prohibitance date of October 1, 2009.","metaTitle":"Siemens 3RV2901-2F SIRIUS Auxiliary Switch, 2 NO, Spring-Ter","metaDescription":"Siemens 3RV2901-2F SIRIUS auxiliary switch, 2 NO contacts, spring-loaded terminals. Rated 1 A at 24 V. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"17 mm","Solid":"2x (0.5 ... 2.5 mm²)","Width":"45 mm","title":"3RV2901-2F","Height":"13 mm","at 24 V":"1 A","at 48 V":"0.3 A","at 60 V":"0.15 A","at 230 V":"0.5 A","description":"Auxiliary switch transverse 2 NO spring-type terminal for circuit breaker 3RV2","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","Fastening Method":"plug-in fixing","Solid Or Stranded":"0.5 ... 2.5 mm²","Product Brand Name":"SIRIUS","Product Designation":"auxiliary switch, transverse on the front","Design Of The Product":"transverse auxiliary switches","Size Of The Circuit-Breaker":"S00, S0, S2, S3","Substance Prohibitance (Date)":"10/01/2009","for AWG cables for auxiliary contacts":"2x (20 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","operational current of auxiliary contacts at AC-12 maximum":"2.5 A","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded terminals","number of CO contacts of auxiliary contacts instantaneous contact":"0","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"2","AWG number as coded connectable conductor cross section for auxiliary contacts":"20 ... 14"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.26","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/84e4f20a6f5f61a67f1773f28009e165.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=306463&mlfb=3RV2901-2F"},"ai":{"faq":[{"question":"What conductor sizes does the 3RV2901-2F accept?","answer":"The spring-loaded terminals accept solid conductors 2x (0.5...2.5 mm²) and finely stranded conductors 2x (0.5...1.5 mm²) with or without ferrule. AWG equivalents are 20 to 14 for the auxiliary contacts."},{"question":"What compliance documentation does Siemens provide for the 3RV2901-2F?","answer":"The part is RoHS-compliant per the substance prohibitance date of October 1, 2009. Standard Siemens documentation includes the declaration of conformity and environmental compliance data available through the product support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2901-2F","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/3RV2901-2F 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}}