UL 5476 Mica Wire
UL 5476 Mica Wire — 450°C · 600V AC · Mica Tape Glass Braid · 30 AWG – 4/0 AWG
UL AWM Style 5476 is a mica tape insulated wire with a glass braid outer covering, rated at 450°C and 600V AC under UL Subject 758, Section 5. The insulation uses mica tape wraps with a glass braid treated with silicone varnish or TFE finish as the outer covering. An optional binder layer may be applied between the mica tape and glass braid. An optional nickel or nickel-coated copper shield (36–30 AWG Type “A”) may also be applied. Both single-conductor and multiple-conductor cabled assemblies are available under this style.
The permitted use is internal wiring where the wire is not subjected to repeated flexing and is protected from mechanical abuse, and where the acceptability — including current-carrying capacity — has been determined by UL. Typical protected internal wiring contexts include high-temperature industrial ovens, furnaces, kilns, and thermal processing equipment where the circuit voltage requires the 600V rating and the wire routing environment requires the 450°C temperature class. Application suitability is subject to equipment design, routing conditions, mechanical protection, and current-carrying requirements — confirm at enquiry stage.
For glass braid 450°C mica wire at 600V with optional stainless steel alloy 304 shield, see UL 5107 or UL 5335. For 600V mica wire with dual temperature options (200°C or 450°C) from 30 AWG, see UL 5359. For 300V mica wire from 30 AWG, see UL 5360.
Technical Specifications — UL Style 5476
| Parameter | Specification |
|---|---|
| UL AWM Style | 5476 |
| UL Subject | 758, Section 5 |
| Temperature Rating | 450°C maximum |
| Voltage Rating | 600V AC |
| AWG Range | 30 AWG – 4/0 AWG, solid or stranded |
| Insulation Wall | 30–12 AWG: 17 mil mica / 7 mil glass braid · 11–4 AWG: 21 mil / 15 mil · 3–4/0 AWG: 26 mil / 20 mil |
| Outer Covering | Glass braid treated with silicone varnish or TFE finish |
| Optional Binder | Between mica tape and glass braid (optional — confirm construction at enquiry) |
| Optional Shield | 36–30 AWG Type “A” nickel or nickel-coated copper (optional) |
| Conductor | Solid or stranded copper; bare or nickel-plated |
| Assembly | Single conductor or multiple conductors cabled together (max O.D. 1.500 in); optional overall glass braid |
| Flame Rating | Horizontal flame |
| UL Recognition | UL Recognized Component — file on record |
| Permitted Use | Internal wiring where not subjected to repeated flexing, protected from mechanical abuse; acceptability including current-carrying capacity determined by UL |
| RoHS / REACH | Documentation available on request |
Request a Quote
To receive an accurate quotation, please include the following in your enquiry: required temperature rating, voltage rating, AWG size, conductor type (solid / stranded; bare / nickel-plated), single conductor or cabled assembly requirement, optional binder requirement, optional nickel shield requirement, glass braid covering specification, insulation colour, quantity (metres or reels), routing condition (protected internal / conduit), equipment type, and end application. Minimum order: 100 m per specification. Response within 12 hours.
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