UL 5359 Mica Multi-Conductor Wire for Vietnam and Indonesia
This is the regional sourcing page for UL AWM Style 5359 mica tape and glass braid wire for buyers in Vietnam and Indonesia. It is written for equipment OEM buyers, maintenance and repair teams, distributors and sourcing teams whose drawing, BOM or existing wire specification calls for Style 5359.
The Style record describes Style 5359 as a single or multi-conductor construction with other-than-extruded insulation. Multi-conductor is therefore a configuration permitted by the Style, not the whole of it: the record contains an optional provision under which two or more insulated conductors described by the Style may be cabled together. A multi-conductor assembly is supplied where it is specified and confirmed for the ordered construction.
The ratings are 200°C or 450°C at 600 Vac, with a Horizontal Flame designation. The conductor range is 30 AWG–4/0 AWG, with form limits that differ by size, and the insulation requirement changes across three conductor-size groups. This page sets out what the Style fixes, what it leaves open, and what a buyer needs to state so that a quotation can be prepared against an actual construction.
Confirmed UL Style 5359 Construction and Ratings
| Parameter | Requirement |
|---|---|
| UL AWM Style | 5359 |
| Product Description | Single or multi-conductor with other-than extruded insulation |
| Temperature Rating | 200°C or 450°C |
| Voltage Rating | 600 Vac |
| Flame | Horizontal Flame |
| Style Conductor Range | 30 AWG–4/0 AWG |
| Conductor Form | Solid or stranded in sizes 26–8 AWG; larger sizes stranded only. The record states no form for 30–27 AWG, and none is inferred here |
| Insulation | Mica tape with glass braid treated with silicone varnish or PTFE finish |
| Optional Assembly | Two or more insulated conductors described by the Style may be cabled together with a maximum O.D. of 1.500 inches; a mica glass binder and/or fiberglass fillers may be employed |
| Optional Covering | Treated glass braid |
| Optional Shield | 36–30 AWG Type “A” Nickel or 27 percent minimum nickel coated copper |
| Marking | General |
| Official Use | Internal wiring where not subjected to repeated flexing and protected from mechanical abuse, and where the acceptability, including current-carrying capacity, has been determined by Underwriters Laboratories Inc. |
| Documentation | UL marking and compliance documents according to the confirmed ordered construction |
| RoHS / REACH | Applicable RoHS / REACH documentation can be confirmed according to the ordered construction |
| Conductor size | Total mica tape layers — minimum average thickness | Treated glass braid layer — minimum average thickness |
|---|---|---|
| 30–12 AWG | 16 mils | 7 mils |
| 11–4 AWG | 20 mils | 15 mils |
| 3–4/0 AWG | 25 mils | 20 mils |
Nine points to clarify about the tables above:
- 200°C and 450°C are alternative rating options. One applies to a given construction and must be confirmed for the order.
- Neither rating carries a duty or service-duration qualifier in the record.
- The conductor form limits differ by size, and the 30–27 AWG form is not stated in the record.
- All six construction values are minimum average thickness requirements. The record states no minimum-at-any-point value for this Style.
- The thickness groups are size-dependent, and values from one group do not apply to another.
- The cabled assembly, the treated glass braid covering and the shield are three separate optional provisions, each supplied only where specified and confirmed.
- 1.500 inches is the maximum O.D. under the cabled assembly provision, not the outer diameter of any single insulated conductor.
- The optional 36–30 AWG Type “A” Nickel or 27 percent minimum nickel coated copper item belongs to the shield provision, not to the conductor.
- Conductor material, plating, strand count, strand diameter, lay length, finished OD, conductor resistance, bend radius and ampacity are not defined by the Style.
The 200°C and 450°C Rating Options
The Style record gives 200°C or 450°C. A construction carries the option confirmed for it, so an enquiry naming only the Style leaves the rating open, and a page or datasheet that fixes Style 5359 at one temperature understates the Style.
Neither option is described here as continuous, sustained or continuous-duty, and no service life, thermal cycling count or thermal margin follows from either. A high temperature rating is also not a fire-survival property: the flame designation is Horizontal Flame, and VW-1, FT1, vertical flame, fire-resistant and circuit-integrity descriptions are not part of this record.
600 Vac Is a Rating, Not a Circuit Assignment
The voltage rating is 600 Vac. It is not written as 600 Vdc or as a combined AC/DC rating.
A voltage rating describes the wire rather than the circuit it may serve. This page therefore does not conclude that 600 Vac makes Style 5359 appropriate for a heating element power circuit, a three-phase supply, a temperature measurement lead, a control signal or an alarm circuit. Those are determined by the equipment design and the customer’s approved specification, and the Style record assigns no circuit function at any voltage level.
Mica Tape with Glass Braid in Three Size Groups
The insulation is one construction: mica tape with glass braid treated with silicone varnish or PTFE finish. Both elements belong to the definition, and the treatment is a braid finish rather than the primary insulation identity.
The requirement splits into three conductor-size groups. For 30–12 AWG, total mica tape layers must meet 16 mils minimum average and the treated braid layer 7 mils. For 11–4 AWG the figures are 20 mils and 15 mils. For 3–4/0 AWG they are 25 mils and 20 mils. Each value is a minimum average. The record contains no minimum-at-any-point requirement for Style 5359, so quoting one would add a requirement the Style does not contain.
These figures belong to Style 5359. Thickness groups published for other mica Styles are not transferable, even where the temperature and voltage ratings appear similar.
Conductor Range and Form Limits
The Style range is 30 AWG–4/0 AWG, and the form rules are specific:
- sizes 26–8 AWG: solid or stranded
- sizes larger than 8 AWG, through 4/0 AWG: stranded only
- sizes 30–27 AWG: the record states no form, and none is assumed here
For a 30–27 AWG requirement the conductor form is confirmed against the proposed qualified construction rather than answered from the Style text. Style scope is also not inventory: not every size, rating option or configuration is regularly produced or held, and commercial availability is confirmed per enquiry.
Conductor Material, Optional Covering and Optional Shield
The Style does not define the conductor material or finish. Copper, tinned copper, nickel-plated copper, bare copper and silver-plated copper are constructions a buyer may specify, not properties this page can assert. Strand count, strand diameter, lay construction, stranding classes and flexibility grades are likewise absent from the record.
Two further provisions stay optional. A treated glass braid covering is permitted over the assembly, so an assembly does not carry an overall covering unless it is specified. An optional shield of 36–30 AWG Type “A” Nickel or 27 percent minimum nickel coated copper is also permitted; that provision describes a shield and is not a conductor material recommendation at either temperature option.
How to Specify a Multi-Conductor UL 5359 Assembly
Where the equipment drawing calls for grouped internal wiring, the Style permits two or more insulated conductors to be cabled together within a maximum O.D. of 1.500 inches, with a mica glass binder and/or fiberglass fillers employed as required. To quote such an assembly, the buyer defines:
- the number of conductors
- the size of each conductor
- the required temperature option and the voltage requirement
- the maximum overall OD, where controlled by the routing position
- colour, marking or conductor identification requirements
- whether a binder or fillers are required
- whether the optional treated glass braid covering is required
- whether the optional shield is required
Whether a grouped assembly suits a given installation is an equipment-design question, decided by the designer against the actual layout, thermal conditions and applicable standards. This page makes no claim that a cabled assembly reduces penetrations, heat loss, installation time or maintenance effort, and it does not present a single-conductor and a multi-conductor construction as substitutes for one another. The construction required is the one the drawing specifies.
Official Use and Its Three Limitations
The official Use is “Internal wiring where not subjected to repeated flexing and protected from mechanical abuse, and where the acceptability, including current-carrying capacity, has been determined by Underwriters Laboratories Inc.”
Repeated flexing is excluded. Style 5359 is not presented for continuous flexing, dynamic cable routing, drag chains, hinged routes, moving equipment doors or robotic motion.
Protection from mechanical abuse is required. The wire is not presented for unprotected exposed routing, abrasive locations, field cable or portable cable, and neither the braid nor an overall covering removes this requirement.
Acceptability, including current-carrying capacity, is determined by Underwriters Laboratories Inc. This page publishes no ampacity, no current-by-conductor-size table and no heater-current guidance, and derives no current value from conductor size, the temperature option or the 600 Vac rating.
Buyer contexts may include internal wiring in industrial heating equipment such as ovens, dryers, furnaces, kilns or heated presses. Those are the buyer’s own equipment contexts, not UL-approved uses: the official Use remains internal wiring under the restrictions above, and the Style record establishes no thermocouple, RTD, sensor, control-system, pharmaceutical or validation suitability.
Dimensions, Resistance and Bending
The Style publishes minimum average thicknesses and one maximum O.D. for the cabled assembly provision. It does not publish a finished outer diameter for any individual size, an OD tolerance, a conductor resistance or a minimum bend radius.
Finished dimensions depend on the actual conductor construction, how the mica tape is applied, the braid construction, the number of conductors and fillers in an assembly, any covering or shield, and manufacturing dimensions. Calculating an OD from a generic conductor diameter plus the minimum thicknesses does not produce a valid product dimension. Where clearance, resistance or bending is controlled, the buyer states the limit and the proposed construction is checked against it.
Vietnam and Indonesia Procurement Context
Vietnam and Indonesia are the commercial setting for this page: buyer locations, OEM sourcing markets, maintenance procurement markets, component distribution markets and shipment destinations. Equipment OEMs, repair teams and sourcing teams in both markets may be looking for high-temperature internal wiring materials for an equipment build or a maintenance replacement, and in each case the buyer’s drawing and BOM determine the final construction.
CableApex acts as the international sales and communication party, coordinating export quotation, documentation review and order confirmation. No regional usage practices, end-user industries or named facilities are claimed for either market, and destination city or port, Incoterm, packaging and quantity are handled per enquiry rather than published as fixed terms.
What Style 5359 Does and Does Not Define
Style 5359 defines:
- 200°C or 450°C rating options and a 600 Vac voltage rating
- Horizontal Flame
- conductor range 30 AWG–4/0 AWG, with form limits by size
- mica tape with glass braid treated with silicone varnish or PTFE finish
- minimum average mica tape thickness of 16, 20 and 25 mils by size group
- minimum average treated glass braid thickness of 7, 15 and 20 mils by size group
- an optional cabled assembly of two or more insulated conductors to a maximum O.D. of 1.500 inches, with optional binder and fillers
- an optional treated glass braid covering and an optional shield provision
- Marking: General
- the Use limitations on repeated flexing, mechanical abuse and acceptability including current-carrying capacity
Style 5359 does not universally define:
- conductor material, plating, strand count, strand diameter or lay length
- conductor form for 30–27 AWG
- finished OD of an individual conductor, OD tolerance or minimum bend radius
- conductor resistance, ampacity, current rating or flex cycles
- metric cross-section for any size
- circuit function, sensor or control-system suitability
- an installation architecture, penetration count or thermal-efficiency benefit
- equivalence with any other mica Style
- colour or identification, reel length, MOQ, stock, lead time, production capacity or shipping term
Common Procurement Errors
- Fixing Style 5359 at 200°C, or writing “200°C continuous”.
- Treating multi-conductor as the Style identity, when the record covers single or multi-conductor and the cabled assembly is an optional provision.
- Treating the optional treated glass braid covering or the optional shield as standard.
- Assuming the conductor is tinned or nickel-plated copper.
- Reading the optional shield provision as the conductor specification.
- Omitting the conductor range, or assuming every size is solid or stranded.
- Inferring a conductor form for 30–27 AWG.
- Applying one size group’s mica or braid thickness across the whole range, or borrowing another Style’s thickness groups.
- Quoting a minimum-at-any-point value the record does not contain.
- Treating 1.500 inches as the OD of a single insulated conductor.
- Deriving ampacity from conductor size, the temperature option or the 600 Vac rating.
- Publishing generic mm² cross-sections, strand counts or resistance values as SKU data.
- Presenting the wire as thermocouple, RTD, PLC or sensor cable.
- Claiming penetration-count, heat-loss or installation-time benefits as product properties.
- Substituting one mica Style for another because the ratings look similar.
- Using the wire where it is subjected to repeated flexing, or relying on the covering instead of protecting it from mechanical abuse.
RFQ Information to Confirm
Style, ratings and construction
- UL AWM Style 5359 requirement
- Ordered temperature rating: 200°C or 450°C
- Voltage requirement within the Style rating
- Conductor count
- AWG for each conductor
- Solid or stranded requirement
- Whether the optional treated glass braid covering is required
- Whether the optional shield is required
- Whether a binder or fillers are required in a cabled assembly
Conductor
- Conductor material and plating requirement, if controlled by the drawing
- Strand construction, if controlled
- Maximum conductor resistance, if controlled
Dimensions and identification
- Maximum OD and OD tolerance, if controlled
- Colour, marking or conductor identification requirement
Application references
- Internal wiring location and the mechanical protection method at that position
- Whether repeated flexing is present at the routing position
- The circuit requirement for engineering review, rather than a self-derived ampacity
- Drawing, BOM or equipment specification
Commercial
- Quantity and packaging preference
- Destination country, city or port, and requested Incoterm
- Requested UL marking and compliance documents, including any RoHS / REACH documentation requirement
UL Marking and Documentation
CableApex is an international sales and export company and does not hold a UL File for Style 5359. Supplied wire is UL-recognized component wire where supplied under a qualified manufacturing scope, with UL marking according to the confirmed ordered construction. The Style record lists Marking as General.
Applicable RoHS / REACH documentation can be confirmed according to the ordered construction. CSA, FT1, VW-1, CE and dual UL/CSA designations are not claimed here.
Commercial, origin, compliance and transport documents are identified during quotation and confirmed according to the order. They are not supplied as a fixed package with every shipment.
