UL 5334 Mica Wire Products
This page groups the available UL Style 5334 product constructions. UL Style 5334 is a single conductor with other-than-extruded insulation, rated 450°C at 300 Vac, using non-extruded composite mica glass insulation with a glass braid treated with silicone varnish or TFE finish. The conductor range is 24 AWG to 4 AWG in solid or stranded construction, and an optional stainless steel alloy 304 braid may be applied over the treated glass braid.
Use the products below to review constructions against your own 24–4 AWG solid or stranded requirement. Conductor material, plating, detailed stranding, finished dimensions, colour, marking, packaging and supporting documents are not fixed at Style level — they are confirmed by quotation for the specific construction ordered. This is a product selection and quotation entry page rather than a fixed catalogue listing.
UL 5334 Wire Specifications
| UL AWM Style | 5334 |
| Construction | Single conductor with other-than-extruded insulation |
| UL Subject / Section | 758, Section 5 |
| Temperature rating | 450°C |
| Voltage rating | 300 Vac |
| Conductor range | 24 AWG – 4 AWG, solid or stranded |
| Insulation | Non-extruded mica with glass braid |
| Mica wall — 24–12 AWG | 17 mils minimum average composite mica glass |
| Braid — 24–12 AWG | 5 mils minimum average treated glass braid |
| Mica wall — 11–4 AWG | 20 mils minimum average composite mica glass |
| Braid — 11–4 AWG | 10 mils minimum average treated glass braid |
| Braid treatment | Silicone varnish or TFE finish |
| Optional construction | Stainless steel, alloy 304, applied as a braid over the treated glass braid |
| Flame rating | Horizontal flame per the UL Style file; VW-1 vertical flame testing available by confirmed construction and agreed order requirement |
| Marking | General, per UL Subject 758 marking requirements |
| Use per UL Style file | Wiring of ovens or similar high-temperature equipment where protected from mechanical abuse and where acceptability, including current-carrying capacity, has been determined for the applicable construction and equipment |
Available UL 5334 Wire Constructions
The UL Style scope covers 24 AWG through 4 AWG, in solid or stranded construction. The insulation requirements fall into two thickness groups. At 24 through 12 AWG, the minimum average composite mica glass thickness is 17 mils with a 5 mils minimum average treated glass braid. At 11 through 4 AWG, the mica increases to 20 mils with a 10 mils minimum average braid. The glass braid is treated with either silicone varnish or a TFE finish, and an optional stainless steel alloy 304 braid may be applied over it where the design calls for an additional outer braid.
Beyond those Style-level figures, the construction is defined at order stage. Conductor material and plating, detailed stranding, finished outside diameter, insulation colour, wire marking, packaging format and the documents supplied with a shipment are all confirmed by quotation. Not every combination of AWG, conductor construction, braid option and packaging is continuously stocked — where a requested combination has not previously been produced, confirm feasibility during enquiry rather than assuming availability from the Style scope alone.
Choose a UL 5334 Wire Product
The product cards below represent different purchasing situations, market contexts and ordered constructions within the same UL Style 5334 scope. They differ in how the construction is specified and in the commercial terms attached to a particular order, not in the underlying Style rating.
For the general Style entry point covering ratings, construction options and order confirmation in detail, start from UL 5334 mica wire for protected oven wiring.
Protected Wiring for Ovens and Similar Equipment
The UL Style 5334 file states the use as wiring of ovens or similar high-temperature equipment, where protected from mechanical abuse, and where acceptability — including current-carrying capacity — has been determined for the applicable construction and equipment.
Two conditions in that statement matter at specification stage. The wire path must be protected from mechanical abuse along its full routed length by the equipment structure. And the Style rating on its own does not establish that a given construction is acceptable for a given installation, including its current-carrying capacity at the operating temperature — that determination is made for the applicable equipment and the specific construction ordered. Confirm that the intended use falls within this boundary before specifying a construction from this category.
UL Marking and Order Documentation
UL 5334 is supplied as a UL Recognized Component — file on record. Only products bearing the applicable UL Mark should be represented as covered products.
The product construction actually produced, the UL marking applied, and the documents accompanying a shipment must all be confirmed within the applicable certified scope before production. Where RoHS, REACH or other compliance documents are required, specify them during enquiry so their availability can be confirmed for the ordered construction. Minimum order quantity, sample availability, packaging, delivery schedule and documentation are confirmed in the quotation rather than fixed in advance.
Related Mica AWM Styles
Three other mica Styles sit alongside UL 5334, differing in voltage class, conductor range and insulation build: UL 5107 (200 or 450°C / 600 Vac, 26 AWG–550 kcmil, mica tape with braid), UL 5128 (450°C / 300 Vac, 24–4 AWG, non-extruded mica tape with optional stainless steel alloy 304 braid), and UL 5335 (450°C / 600 Vac, 22 AWG–4/0 AWG, mica with glass braid). UL 5360 (200 or 450°C / 300 Vac, 30 AWG–4/0 AWG, non-extruded mica tape with glass braid) extends the conductor range further at the same voltage class. Match the Style against the actual design requirement rather than treating them as interchangeable.
The wider ranges are available under Mica Tape Wire and AWM Wire.
Request a UL 5334 Wire Quote
Send the following with your enquiry so the construction can be confirmed against the applicable certified scope:
- AWG size
- Solid or stranded construction
- Requested conductor material or plating
- Optional stainless steel alloy 304 braid requirement
- Quantity
- Colour
- Finished-dimension requirement
- Packaging format
- Required wire marking
- Required order documents
- A description of the intended protected oven or similar high-temperature-equipment use
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- UL 5334 Mica Wire Products
UL 5334 Composite Mica Glass Wire — 450°C 300V Oven Internal Wiring for German Heat Equipment Export
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