{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1936-4NB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1936-4NB00","canonicalUrl":"https://aoctrl.com/siemens/3RT1936-4NB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1936-4NB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS adapter plate 3RT1936-4NB00, for replacement of contactors 3TF46 to 3TF49 on SIRIUS 3RT, lifecycle stage current.","salesMarkdown":"The Siemens 3RT1936-4NB00 is an adapter plate designed to retrofit older 3TF46 through 3TF49 contactors onto a SIRIUS 3RT mounting rail. It is a mechanical conversion piece, not a standalone contactor — it lets you swap in a newer SIRIUS 3RT2 contactor without re-drilling the panel or changing the backplate layout. ## What it replaces This adapter plate specifically targets the 3TF46, 3TF47, 3TF48, and 3TF49 contactor sizes, providing the mounting geometry and terminal spacing to accept a SIRIUS 3RT2 contactor in their place. It is a pure mechanical adapter — no electrical function, no coil, no auxiliary contacts. If your BOM calls for a 3TF-series contactor and you want to migrate to the 3RT2 platform, this plate is the bridge. For a direct drop-in without the adapter, the 3RT2016-1DF47 is a SIRIUS contactor of size S00 with screw terminals, but it is a different form factor and will not bolt into a 3TF46-49 footprint without this plate. The adapter plate mounts onto the existing DIN rail or screw-pattern used by the 3TF46-49 contactors. The SIRIUS 3RT2 contactor then snaps onto the plate. This avoids re-drilling the backplate or re-routing the main power wiring if the busbar positions align. Verify the 3RT2 contactor's terminal spacing against your existing busbar layout before ordering — the plate adapts the mounting footprint, not the electrical connection pitch.","metaTitle":"Siemens 3RT1936-4NB00 adapter plate, SIRIUS, replaces 3TF46-","metaDescription":"Siemens 3RT1936-4NB00 adapter plate for replacing 3TF46-49 contactors on SIRIUS 3RT. Lifecycle stage current. Successor is SIRIUS 3RT2. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current","Substance Prohibitance (Date)":"07/01/2006"}},"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=4531&mlfb=3RT1936-4NB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1936-4NB00/alternatives.json"},"ai":{"faq":[{"question":"What does this adapter plate replace?","answer":"It replaces contactors 3TF46 through 3TF49, allowing a SIRIUS 3RT2 contactor to be installed in their place."},{"question":"What is the official successor for the contactor side of this retrofit?","answer":"The official successor is the SIRIUS 3RT2 series, which this adapter plate is designed to accommodate."},{"question":"What compliance date is listed for this part?","answer":"The substance prohibitance date is 07/01/2006, corresponding to the original RoHS compliance deadline."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1936-4NB00","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/3RT1936-4NB00 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}}