{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GT2891-2UH30","brand":"Siemens","brandSlug":"siemens","productSlug":"6GT2891-2UH30","canonicalUrl":"https://aoctrl.com/siemens/6GT2891-2UH30","factsUrl":"https://aoctrl.com/api/mcp/products/6GT2891-2UH30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC RF1000 connecting cable, 6GT2891-2UH30, pre-assembled RS-232, 4-core LiYCY, 3 m length, 300 V rated, UL AWM listed.","salesMarkdown":"The Siemens 6GT2891-2UH30 is a pre-assembled RS-232 communication cable for the SIMATIC RF1000 family, specifically linking an RF1040R or RF1070R reader to a controller with a screw-terminal RS-232 interface — for example, an ET 200SP module. It carries a 300 V maximum rating and is UL AWM 2464/2517 listed on the cable section without the plug, so it's accepted in North American panels that require UL-recognized wiring. The cable is 3 m long, 4-core, with a braided shield of tin-plated copper — that shield is what keeps the RS-232 signal clean in a noisy cabinet with drives or contactors nearby. ## Construction and environmental resistance The cable sheath is black PVC, flame-resistant per IEC 60332-1-2, halogen-free no, silicon-free yes. It resists water and mineral oil, and is rated for UV radiation exposure — useful if the reader end lives in a washdown zone or near a window. Installation temperature matches the operating range, so don't pull it in freezing conditions. Minimum bend radius is 69 mm for both single and multiple bends — that's about 2.7 inches, tight enough for most cable ducts but worth checking if you're routing through a crowded trough. The cable designation is LiYCY 4x AWG26 — that's a standard shielded data cable, so if you ever need a custom length, the raw cable is available, but the pre-assembled version with the PicoBlade 51021 5-pole connector on one end and open ends on the other is what this order code delivers. The 300 V rating is the cable's maximum working voltage between conductors — well above the typical RS-232 signal levels (±12 V or so), so the margin is generous. What matters more is the UL listing: if your panel requires UL-recognized wiring, this cable qualifies on the cable portion (the plug end is not separately UL-listed, per the spec). Loop resistance is 130 mΩ/m maximum — for a 3 m cable that's about 0.39 Ω per conductor, negligible for RS-232 at its standard baud rates. The shield's tin-plated copper braid gives good coverage against EMI from nearby VFDs or switching power supplies.","metaTitle":"Siemens 6GT2891-2UH30 SIMATIC RF1000 Connecting Cable, 3 m,","metaDescription":"Siemens 6GT2891-2UH30 SIMATIC RF1000 connecting cable, 3 m, 300 V rated, UL AWM listed. Pre-assembled RS-232 cable for RF1040R/RF1070R to controller. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RFID & Auto-ID"],"specifications":{"title":"6GT2891-2UH30","Maximum":"300 V","To Water":"resistant","Wire Length":"3 m","description":"SIMATIC RF1000 connecting cable, pre-assembled RS232; between RF1040R or RF1070R and controllers; connection with open ends, black, length 3 m.","Halogen-Free":"No","Silicon-Free":"Yes","Fire Behavior":"flame resistant according to IEC 60332-1-2","During Storage":"-30 ... +80 °C","To Mineral Oil":"resistant","Of Cable Sheath":"Black","lifecycle_stage":"mature","During Operation":"-15 ... +80 °C","During Transport":"-30 ... +80 °C","Cable Designation":"LiYCY 4x AWG26","Weight Per Length":"35 kg/km","During Installation":"-15 ... +80 °C","Product Description":"Communication cable (4-core)","Suitability For Use":"plug-in cable for connecting an RF1000 reader with an RS-232 module with screw connection (for example, ET 200SP)","Design Of The Shield":"Braided shield made of tin-plated copper wires","Of The Wire Insulation":"PVC","according to IEC 81346-2":"WG","Number Of Electrical Cores":"4","Type Of Electrical Connection":"Open end / PicoBlade 51021 5-pole","UL/ETL listing / 300 V Rating":"Yes; UL AWM 2464/2517 (only cable without plug)","according to IEC 81346-2:2019":"WGB","Of The Insulation Of Data Wires":"international color code","Number Of Electrical Connections":"2","Loop Resistance Per Length / Maximum":"130 mΩ/m","With Single Bend / Minimum Permissible":"69 mm","With Multiple Bends / Minimum Permissible":"69 mm","radiological resistance / to UV radiation":"resistant"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2ed1c475ee0f73124145f97321da840e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1357592&mlfb=6GT2891-2UH30"},"ai":{"faq":[{"question":"What is the maximum voltage rating?","answer":"The cable is rated for 300 V maximum, and the cable portion (without the plug) carries UL AWM 2464/2517 listing."},{"question":"Is this cable resistant to water and oil?","answer":"Yes, the spec lists it as resistant to water and mineral oil. It's also UV-resistant, so it can handle exposure near a window or in a washdown area."},{"question":"What compliance documentation is available?","answer":"The cable is UL AWM listed (2464/2517) on the cable section, and it meets IEC 60332-1-2 for flame resistance. The manufacturer's standard declarations (CE, UKCA) apply as a Siemens industrial product."},{"question":"What is the cable construction?","answer":"It's a 4-core LiYCY cable, AWG26, with a black PVC sheath, braided shield of tin-plated copper, and international color-coded insulation. One end has a PicoBlade 51021 5-pole connector; the other end is open."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GT2891-2UH30","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/6GT2891-2UH30 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}}