UL 5107 450°C Mica Glass Wire for Vietnam and Indonesia
UL 5107 is a mica tape insulated wire with a glass braid outer covering, rated 450°C and 600V AC under UL AWM Style 5107, produced under UL Follow-Up Service File No. E333030. The mica tape insulation system of UL 5107 — a mineral-based insulation using crystalline silicate mica wraps — maintains its solid, electrically insulating form continuously at 450°C, a temperature at which silicone rubber (200°C limit), PTFE (250°C limit), and all other organic polymer insulation systems would have completely decomposed. UL 5107 is the standard specification for internal wiring in industrial furnaces, ceramic kilns, glass annealing ovens, and metal heat treatment furnaces where the wire is routed inside or immediately adjacent to the heated chamber.
Vietnam’s rapidly expanding manufacturing base — particularly in ceramics, glass products, metal processing, and industrial heating equipment — and Indonesia’s large industrial furnace and kiln sector create consistent procurement demand for UL 5107 mica glass wire from equipment OEMs and maintenance operations requiring UL-certified extreme high temperature internal wiring. CableApex supplies UL 5107 — known locally in Vietnam as dây mica chịu nhiệt (mica heat-resistant wire) — factory-direct CIF Ho Chi Minh City and CIF Surabaya from Yangzhou.
Product Specifications — UL 5107
| Parameter | Specification |
|---|---|
| UL AWM style | 5107 |
| Insulation | Mica tape wrap (multiple layers) |
| Outer covering | Glass braid |
| Temperature rating | 450°C continuous |
| Voltage rating | 600V AC |
| Conductor | Stranded nickel-plated or bare copper |
| AWG range | 22 AWG – 4 AWG |
| Flame rating | Horizontal flame |
| UL file number | E333030 |
| Compliance | RoHS, REACH |
UL 5107 vs Silicone Wire — Why Mica for Vietnam and Indonesia Industrial Applications
| Property | UL 5107 Mica (this product) | UL 3135 Silicone 200°C | UL 1659 PTFE 250°C |
|---|---|---|---|
| Max continuous temperature | 450°C | 200°C | 250°C |
| Insulation at 300°C | Fully stable — mineral | Completely destroyed | Decomposing |
| Insulation at 450°C | Fully stable | N/A | N/A |
| Voltage rating | 600V AC | 600V AC | 600V AC |
| Best use | Furnaces, kilns, heat treatment chambers | Ovens up to 200°C, motors | Chemical + high temp |
Applications in Vietnam and Indonesia
Industrial ceramic kiln internal wiring (Vietnam)
Vietnam’s ceramics manufacturing sector — centred in Bình Dương, Đồng Nai, and Long An provinces — operates a large concentration of tunnel kilns and periodic kilns firing at 1,000–1,300°C chamber temperatures. The internal wiring in the heating zone section of these kilns, connecting the heating element terminals to the power supply leads entering the kiln structure, requires UL 5107 mica glass wire for the portion of the run inside or adjacent to the kiln insulation, where ambient temperatures at the wire surface can exceed 400°C. UL 5107 is the dây mica chịu nhiệt specification that Vietnam ceramic equipment OEMs and kiln builders specify for this application.
Metal heat treatment furnace wiring (Indonesia)
Indonesia’s metal processing and manufacturing sector — concentrated in Bekasi, Karawang, and East Java industrial zones — operates a large number of heat treatment furnaces for hardening, annealing, and tempering of steel and non-ferrous components. Internal wiring in heat treatment furnaces operating at 800–1,100°C requires UL 5107 for the heating element power lead connections inside the furnace chamber lining. Indonesian furnace OEMs and maintenance suppliers specify UL 5107 as the kabel mica tahan panas (mica heat-resistant cable) for all internal wiring above 250°C in their furnace builds and rebuild projects.
Glass annealing oven and industrial oven internal wiring
Glass product manufacturers in Vietnam and Indonesia operating lehr ovens and annealing furnaces at 400–600°C specify UL 5107 for the internal heating element wiring inside the oven structure. The 450°C continuous rating and glass braid mechanical protection of UL 5107 cover both the sustained operating temperature and the abrasion requirements at conduit entries and routing contact points inside the oven insulation.
4 AWG heavy power feed applications
Large industrial furnaces and kilns in Vietnam and Indonesia require heavy conductor AWG sizes — typically 4 AWG to 8 AWG — for the heating element power supply leads carrying three-phase 380V at high current loads. UL 5107 4 AWG mica glass wire provides the combination of high conductor cross-section for current capacity and 450°C / 600V insulation rating for the internal power lead connections in these large heating installations.
Ordering Information
Specify AWG, conductor type (nickel-plated recommended for sustained 450°C), and quantity. MOQ 500 m per AWG. UL 5107 compliance documentation and RoHS Declaration supplied. CIF Ho Chi Minh City or CIF Surabaya. Lead time 10–15 working days.
Request CIF pricing for Vietnam or Indonesia. Provide AWG, quantity, and destination port. We respond within 24 hours. Contact us.
Why CableApex for Vietnam and Indonesia
CableApex manufactures UL 5107 mica glass wire under UL Follow-Up Service File No. E333030 in Yangzhou, China. Factory-direct export to Vietnam and Indonesia — CIF Ho Chi Minh City or CIF Surabaya, 12–16 day transit. Full UL documentation for equipment OEM and maintenance procurement. Contact us within 24 hours.