Mica Tape Wire

Mica tape AWM wire uses wrapped mica tape as the primary insulation material — a mineral-based insulation that provides temperature ratings of 200°C to 450°C, far exceeding any polymer insulation system. Mica is a crystalline silicate mineral that maintains its solid, electrically insulating form at temperatures that would destroy silicone rubber, PTFE, and all other organic insulation materials, making mica tape wire the only standard AWM wire specification for internal wiring in industrial furnaces, high temperature ovens, kilns, and thermal processing equipment operating continuously above 200°C.

CableApex produces mica tape AWM wire under UL Follow-Up Service File No. E333030, covering seven styles across two temperature classes — 200°C (UL 5359, UL 5360) and 450°C (UL 5107, UL 5128, UL 5334, UL 5335, UL 5476) — and two voltage ratings (300V and 600V). All styles comply with RoHS and REACH.

UL StyleVoltageTemperaturePrimary application
UL 5359600V AC200°CMulti-conductor mica wire — heating element groups
UL 5360300V AC200°CSingle conductor mica wire — compact heating applications
UL 5107600V AC450°CHigh temperature mica glass wire — industrial furnaces
UL 5128300V AC450°CMica glass braid — oven and kiln internal wiring
UL 5334600V AC450°CMica fiberglass — extreme heat equipment wiring
UL 5335600V AC450°CMica glass braid — furnace heating circuit connections
UL 5476600V AC450°CMica tape — industrial thermal equipment internal leads
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