UL1283 PVC Wire

UL 1283 PVC Wire — 105°C, 600 Vac, Internal Wiring with Optional 2500 V Peak Electronic Rating

UL 1283 is a single-conductor appliance wiring material (AWM) with extruded PVC insulation, rated 105°C maximum at 600 Vac with a horizontal flame rating, evaluated under UL Subject 758. Covering conductor sizes from 8 AWG to 2 AWG, it addresses the heavier end of the internal hook-up wire range where robust insulation wall thickness and high conductor cross-section matter more than fine-pitch flexibility. A tag-marked option allows the marking “2500 Volts Peak For Electronic Use Only,” extending the style’s scope to internal electronic circuits operating at elevated peak voltages without changing the base conductor or insulation construction. CableApex supplies UL 1283 as a UL Recognized Component — file on record.

Three Conductor Construction Options

UL 1283 is the only PVC single-conductor style in this range to list three distinct conductor constructions within the same style description: solid, standard stranded, and braided — the last consisting of 40–20 AWG strands assembled into a rope-lay or bunch-strand configuration. The braided construction delivers substantially greater flexibility than either solid or conventional stranded conductors at the same nominal AWG, which matters in installations where the wire must route through tight radii inside a chassis or withstand repeated movement during equipment servicing. All three constructions share the same 60 mils minimum average / 54 mils minimum at any point PVC insulation wall and the same 105°C / 600 Vac rating.

Heavy-Wall Insulation Across the Full Range

The 60 mils minimum average wall applies uniformly across the entire 8–2 AWG range, unlike styles such as UL 1032 where the wall scales through seven brackets. At 8 AWG, this produces a wall-to-conductor ratio that provides strong dielectric separation and mechanical protection against abrasion from adjacent metal edges inside a panel or enclosure. At 2 AWG, the 60 mil wall maintains the same voltage class with a construction suited to the higher current capacity of that conductor size. An optional 60°C or 80°C oil rating is available for wiring exposed to lubricants or cutting fluids inside the equipment.

How UL 1283 Compares with UL 1056 in the Heavy PVC Range

Both UL 1283 and UL 1056 specify 60 mils minimum average PVC wall and 105°C / 600 Vac, but their permitted uses differ. UL 1056 is limited to internal wiring of indoor or outdoor refrigerating equipment and covers 20–10 AWG stranded only. UL 1283 carries a general internal wiring permitted use, extends to the larger 8–2 AWG conductor range, and offers solid, stranded and braided conductor options. When the application is refrigerating equipment and the conductor falls within 20–10 AWG stranded, UL 1056 is the matching style; for heavy-gauge internal wiring with the braided conductor option or the 2500 V peak electronic tag, UL 1283 is the appropriate choice.

Permitted Use and How to Order

The permitted use for UL 1283 is internal wiring; tags may additionally indicate 2500 Volts Peak For Electronic Use Only where specified at time of order. For applications beyond general internal wiring — including equipment-specific installations such as machine tools or control cabinets — confirm application suitability before specifying. Marking follows UL Subject 758 marking requirements; RoHS/REACH documentation is available on request. CableApex supplies UL 1283 from 100 m per color in solid, stranded or braided conductor construction, with B2B inquiries answered within 12 hours. Browse the product pages below by AWG size or submit your full specification through any product page inquiry form.