What MAYER WIRE TFFN is known for
MAYER WIRE TFFN is a branded line of thermoplastic insulated building and fixture wire carried by Mayer Electric. The line is positioned for general purpose internal wiring, fixture and machine tool connections where a nylon outer jacket is specified. MAYER WIRE TFFN items are available in common small conductor sizes (for example 16 AWG and 18 AWG), multiple strand counts and in a wide palette of insulation colors and spool lengths used by contractors and OEMs.
The MAYER WIRE TFFN family includes solid and stranded copper conductors in 16 AWG and 18 AWG form factors, offered on 500 ft spools or large reels (2500 ft) depending on strand count and customer need. Product data for individual SKUs lists attributes to check during procurement: AWG size, strand count, insulation material (PVC with nylon jacket), insulation thickness, outer diameter, temperature and voltage ratings (commonly 600 V, 90 °C for TFFN), and part numbers/UPC codes used for ordering and inventory.
TFFN/TFN wire is typically specified for fixture wiring, machine tool wiring, internal appliance wiring and similar dry‑location wiring where the nylon jacket provides abrasion resistance and some chemical resistance. Where a product is additionally rated for MTW, AWM or TEWN per its markings, it can meet broader application requirements such as limited wet‑location or appliance wiring duty — but buyers should confirm the exact rating printed on the reel or product sheet before using it outside dry locations.
Key electrical and mechanical attributes (AWG, strand count, temperature and voltage ratings, insulation and jacket material, and UL/industry approvals) determine whether a spool is suitable as a direct replacement. For example, a 16 AWG 26‑strand TFFN spool will have different flexibility and ampacity characteristics than a 16 AWG solid conductor. Temperature ratings and the specific UL types (TFFN vs MTW vs TEWN vs AWM) affect allowable use in dry, wet or oil‑exposed environments.
Safsale product pages aggregate the standard buyer signals procurement teams need: clear titles with AWG, strand count, color and packaging; multiple product photos showing spool markings; attribute tables listing insulation material, temperature and voltage ratings; and downloadable spec sheets or catalogs when available. Product pages often include manufacturer part numbers and UPCs so buyers and stores can cross‑reference inventory. Reviews and Q&A sections on Safsale provide practical feedback from installers and maintenance teams about flexibility, labeling legibility and spool packaging.
MAYER WIRE TFFN is directly comparable to other TFFN/TFN offerings when the listed type, voltage and temperature ratings match. For functional replacement, match AWG, strand count (or equivalent flexibility), insulation type, voltage and temperature rating and any required UL/CSA designations. If a run requires wet‑location or higher temperature ratings, specify the appropriate MTW or TEWN/AWM type rather than assuming TFFN is suitable.
Final procurement tip
When substituting across brands, document the equivalency in the purchase order and retain the vendor spec sheet showing matching type, voltage and temperature ratings. For large projects, request a cut‑length sample or small spool to confirm flexibility, jacket marking legibility and fit in terminals before bulk purchasing.