{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2906-2DG1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2906-2DG1","canonicalUrl":"https://aoctrl.com/siemens/3RB2906-2DG1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2906-2DG1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB2906-2DG1 current measuring module, adjustable 2.4...25 A, 690 V AC-3e max, straight-through transformers, stand-alone installation.","salesMarkdown":"## What this current measuring module does The Siemens 3RB2906-2DG1 is a SIRIUS current measuring module designed for use with 3RB22/23/24 overload relays in size S00/S0. It mounts stand-alone and connects to the main circuit via straight-through transformers — no auxiliary circuit wiring needed. This covers most small-to-medium motor protection applications in a panel. ## Lifecycle and sourcing — NRND status This part carries a lifecycle status of NRND (Not Recommended for New Designs). It is still available for existing BOM positions and maintenance spares, but new projects should consider the current SIRIUS generation. The module carries a substance prohibitance date of May 28, 2009, indicating RoHS compliance from that date forward. Standard Siemens documentation (datasheet, manual) is available for this SIRIUS series.","metaTitle":"Siemens 3RB2906-2DG1 SIRIUS Current Measuring Module","metaDescription":"Siemens 3RB2906-2DG1 SIRIUS current measuring module, 2.4...25 A adjustable, 690 V AC-3e max. NRND — sourced to order. RFQ for availability and pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Overload Relays"],"specifications":{"title":"3RB2906-2DG1","description":"Current transformer 2.4...25 A for 3RB22/23/24 Size S00/S0 Stand-alone installation Main circuit: straight-through transformer Auxiliary circuit: --","lifecycle_stage":"current","Fastening Method":"stand-alone installation","Product Brand Name":"SIRIUS","Product Designation":"Current measuring module","For Main Current Circuit":"straight-through transformers","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"05/28/2009","Operational Current Rated Value":"25 A","operational current at AC-3e at 400 V rated value":"25 A","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.4 ... 25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4e6a521391edd418836817fe8666f114.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=369659&mlfb=3RB2906-2DG1"},"ai":{"faq":[{"question":"What is the adjustable current range of 3RB2906-2DG1?","answer":"The adjustable current response value is 2.4...25 A, covering small motor protection and similar loads. At AC-3e duty at 400 V, the operational current is rated 25 A."},{"question":"How does the 3RB2906-2DG1 mount in a panel?","answer":"It is designed for stand-alone installation — no DIN rail or panel cutout required beyond the mounting footprint. The main circuit connects via straight-through transformers, and there is no auxiliary circuit connection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2906-2DG1","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/3RB2906-2DG1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T19:04:52.187Z","lastPublished":"2026-07-20T19:04:52.187Z","indexable":true}}