UL 2550
Additional Details
APPLIANCE WIRING MATERIAL
Style 2550 Multiple-Conductor with Extruded Insulation and Non-Integral Jacket
Rating 90 deg C, 600 Vac, Cable flame.
Conductor 40 AWG minimum solid or stranded
Insulation Labeled or complying with Manufacturer’s AWM Procedure.
Assembly Consists of two or more conductors, twisted pairs or groups of twisted conductors twisted together. The conductors or groups of conductors may be laid parallel forming a flat, oval or round cable. The lay of the conductors is not specified. A barrier layer and/or fillers are optional. Manufacturer shall maintain a complete description of each assembly. May use same or mixed AWG size.
Shield Optional.
Covering Optional. A 6 mil or heavier PVC covering may be extruded over the conductor assembly.
Jacket Extruded PVC
Diameter of core assembly under jacket (inches) ? Minimum average thickness (mils) Minimum thickness at any point (mils)
0.700 or less 60 48
0.701-1.500 80 64
1.501-2.500 110 88
2.501 and larger 140 112
Standard Appliance Wiring Material UL 758.
Marking General.
Use Internal wiring or External Interconnection of Electronic Equipment.
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