Multi-Listed Flexible Wire

Name: Multi-Listed Flexible Wire
Brand: Polar Wire Products

Flexible wire listed THHW, TEW, MTW, AWM, BC-5W2 and SAE TYPE SGT.
Rated −40°F to 221°F, 600 V.THHW / TEW / MTW / AWM / BC-5W2 / SAE TYPE SGT

Listed THHW, MTW, AWM, BC-5W2 and SAE Type SGT. 600 V, −40°F to 221°F, UL file E321440. 10 AWG to 750 MCM.

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Approvals and origin

UL Listed THHW / MTW600 V−40°F to 221°F

CSA 234608 TEW

At a glance

SizesSizes stocked: 10 AWG to 750 MCM
TemperatureTemperature: −40°F to 221°F
VoltageVoltage: 600 V
ConductorConductor: Class K, 30 AWG strands
InsulationInsulation: Extra-flexible PVC
ListingsListings: THHW, MTW, AWM, BC-5W2, SGT

Multi-Listed Flexible Wire in stocked sizes, jackets cut back to Class K copper — 10 AWG through 500 MCM. Single conductor, Class K copper, 600 V printed on the jacket.

Class K copper, listed THHW, MTW, AWM, BC-5W2 and SGT

Polar Wire's Multi-Listed Flexible Wire is a finely stranded flexing service wire for work that needs flexibility, a wide temperature range, and abrasion resistance. Use it as flexible building wire, battery cable, welding cable, and boat cable. Additional colors and tin-plating are special order. Minimums apply. Manufactured in the United States.

THHW, MTW, AWM, BC-5W2, CSA TEW, SAE SGT. One Class K copper construction carries those listings.
Class K, 30 AWG stranding. Soft annealed 100% copper to ASTM B172.
Extra-flexible PVC. Rated −40°F to 221°F (−40°C to 105°C). Oil, heat, acid and moisture resistant.

Download the spec sheet Catalog and spec sheet All documents

Applications

Building wire, battery cable, welding cable, boat cable, appliance wiring, and machine tool wire.

Multi-Listed Flexible Wire in stocked sizes, jackets cut back to Class K copper, printed THHW, MTW and BC-5W2 — Flexible building wire, THHW

500 MCM Multi-Listed Flexible Wire assembled as lugged battery leads with clear adhesive shrink — Fine strand battery cable

Cut ends of red Multi-Listed Flexible Wire showing Class K fine copper stranding — Flexible welding cable

Workboat in coastal water — Marine boat cable, BC-5W2

Heavy black conductors landed on a breaker inside an industrial control cabinet — Appliance wiring material

Internal machine and panel wiring in an industrial enclosure — Machine tool wire, MTW

Specifications, every size

10 AWG to 750 MCM. Gauge and AWG are the same measurement. 1/0 and above are cable tray approved. 1 AWG, 3/0 and 750 MCM are special order.

Size range

Units

Columns

View

			Wall	UL style		Ampacity wet	Stocked colors	Buy
10 AWG	105/30	.180"4.57 mm	.030"0.76 mm	1015	105 A	90 A	Black	Quote
8 AWG	168/30	.250"6.35 mm	.045"1.14 mm	1028	105 A	90 A	BlackRed	Shop
6 AWG	259/30	.325"8.25 mm	.060"1.52 mm	1232	105 A	95 A	BlackRedGreen	Shop
4 AWG	420/30	.375"9.52 mm	.060"1.52 mm	1232	140 A	125 A	BlackRed	Shop
2 AWG	665/30	.515"13.08 mm	.060"1.52 mm	1232	190 A	170 A	BlackRed	Shop
1 AWG	836/30	.575"14.60 mm	.080"2.03 mm	1232	220 A	195 A	BlackRed	Special order
1/0 AWG	1064/30	.655"16.64 mm	.080"2.03 mm	1232	260 A	230 A	BlackRed	Shop
2/0 AWG	1323/30	.662"16.81 mm	.080"2.03 mm	1232	300 A	265 A	BlackRed	Shop
3/0 AWG	1666/30	.765"19.43 mm	.080"2.03 mm	1232	350 A	310 A	BlackRed	Special order
4/0 AWG	2107/30	.875"22.22 mm	.085"2.16 mm	1232	405 A	360 A	BlackRed	Shop
250 MCM	2499/30	.880"22.35 mm	.095"2.41 mm	1284	455 A	405 A	Black	Quote
500 MCM	5054/30	1.160"29.46 mm	.095"2.41 mm	1284	700 A	620 A	Black	Shop
750 MCM	7448/30	1.380"35.05 mm	.110"2.79 mm	1284	885 A	785 A	Black	Special order

10 AWG

Stranding: 105/30
Nominal OD: .180"4.57 mm
Wall: .030"0.76 mm
UL style: 1015
Ampacity dry: 105 A
Ampacity wet: 90 A

BlackQuote

8 AWG

Stranding: 168/30
Nominal OD: .250"6.35 mm
Wall: .045"1.14 mm
UL style: 1028
Ampacity dry: 105 A
Ampacity wet: 90 A

BlackRedShop

6 AWG

Stranding: 259/30
Nominal OD: .325"8.25 mm
Wall: .060"1.52 mm
UL style: 1232
Ampacity dry: 105 A
Ampacity wet: 95 A

BlackRedGreenShop

4 AWG

Stranding: 420/30
Nominal OD: .375"9.52 mm
Wall: .060"1.52 mm
UL style: 1232
Ampacity dry: 140 A
Ampacity wet: 125 A

BlackRedShop

2 AWG

Stranding: 665/30
Nominal OD: .515"13.08 mm
Wall: .060"1.52 mm
UL style: 1232
Ampacity dry: 190 A
Ampacity wet: 170 A

BlackRedShop

1 AWG

Stranding: 836/30
Nominal OD: .575"14.60 mm
Wall: .080"2.03 mm
UL style: 1232
Ampacity dry: 220 A
Ampacity wet: 195 A

BlackRedSpecial order

1/0 AWG

Stranding: 1064/30
Nominal OD: .655"16.64 mm
Wall: .080"2.03 mm
UL style: 1232
Ampacity dry: 260 A
Ampacity wet: 230 A

BlackRedShop

2/0 AWG

Stranding: 1323/30
Nominal OD: .662"16.81 mm
Wall: .080"2.03 mm
UL style: 1232
Ampacity dry: 300 A
Ampacity wet: 265 A

BlackRedShop

3/0 AWG

Stranding: 1666/30
Nominal OD: .765"19.43 mm
Wall: .080"2.03 mm
UL style: 1232
Ampacity dry: 350 A
Ampacity wet: 310 A

BlackRedSpecial order

4/0 AWG

Stranding: 2107/30
Nominal OD: .875"22.22 mm
Wall: .085"2.16 mm
UL style: 1232
Ampacity dry: 405 A
Ampacity wet: 360 A

BlackRedShop

250 MCM

Stranding: 2499/30
Nominal OD: .880"22.35 mm
Wall: .095"2.41 mm
UL style: 1284
Ampacity dry: 455 A
Ampacity wet: 405 A

BlackQuote

500 MCM

Stranding: 5054/30
Nominal OD: 1.160"29.46 mm
Wall: .095"2.41 mm
UL style: 1284
Ampacity dry: 700 A
Ampacity wet: 620 A

BlackShop

750 MCM

Stranding: 7448/30
Nominal OD: 1.380"35.05 mm
Wall: .110"2.79 mm
UL style: 1284
Ampacity dry: 885 A
Ampacity wet: 785 A

BlackSpecial order

1 AWG, 3/0 AWG and 750 MCM are special order. Minimums apply. 8, 6, 4, 2, 1/0, 2/0 and 4/0 AWG and 500 MCM are on the online store. Additional colors and tin-plating are special order. Ampacities are 105°C values adapted from ICEA P-54-440 / NEMA WC51-1986 R1991, for a single conductor in free air at 30°C ambient. Informational. Acceptance by any governing body is the end user's responsibility.

Color options

Black is stocked across the range. Red is stocked 8 AWG through 4/0. Green is stocked at 6 AWG. Additional colors and tin-plating are special order. Minimums apply.

4/0 AWG red Multi-Listed Flexible Wire tied in a knot, showing extra-flexible PVC — 4/0 AWG in a knot. Extra-flexible PVC on Class K copper, rated −40°F to 221°F.

Black10 AWG to 750 MCM
Red8 AWG to 4/0 AWG
Green6 AWG
Custom color or tin-plateSpecial order. Minimums apply.

THHW, MTW, AWM, BC-5W2 and SAE SGT

THHW, MTW, AWM, BC-5W2 and SAE Type SGT. 10 AWG to 750 MCM, 600 V, rated −40°F to 221°F.

Approvals and ratings

UL file E321440. CSA 234608. Sample jacket print below.

UL Listed THHW / MTW

File E321440. 600 V

UL Listed as THHW and MTW. 6 AWG is also UL 1337. 1 AWG to 4/0 is also UL 1338.

UL AWM

UL 758

Styles 1232, 1284, 1338, 1426 and 10269, printed on the jacket.

CSA 234608 TEW

TEW FT-1 for 6 to 4/0 AWG. AWM I A/B FT-1 for 250 to 750 MCM.

−40°F to 221°F

−40°C to 105°C

Oil, heat, acid and moisture resistant.

VW-1 and FT1

Meets UL VW-1 and CSA FT1 flame test requirements.

BC-5W2 boat cable

Single conductor 600 V boat cable. Meets or exceeds ABYC.

SAE Type SGT

Automotive battery, starter and ground cable. UL construction that exceeds SAE.

Cable tray, CT

1/0 AWG to 750 MCM are CT approved.

NEC and NFPA 79

NEC types machine tool wire and THHW. MTW for industrial machinery per NFPA 79.

ASTM B172

Soft annealed 100% copper, Class K, 30 AWG strands.

ABYC

Meets or exceeds UL, ABYC and SAE standards.

Made in the USA

Manufactured by Polar Wire Products in the United States.

Typical legend printed on the wire

E321440 2 AWG (33.62mm2) 600 VOLT (UL) TYPE MTW VW-1 OR THHW OR BOAT CABLE BC-5W2 OR AWM STYLES 1232/1284/1338/10269 . . . CSA 234608 TEW 105°C 600V FT1 OR AWM I A/B 600 VOLT 105°C 600V FT1 . . . FOR SAE TYPE SGT

Documents and resources

Spec sheet, Class K stranding, and DC resistance. If you need something that is not here, ask us: 8am to 5pm AKST, Monday to Friday.

Catalog and sales sheetSpec sheet and sizes.Class K stranding comparison chartClass K against SAE and Class B.Class K DC resistanceResistance per size for voltage drop math.

Frequently asked questions

If you need something that is not here, ask us: 8am to 5pm AKST, Monday to Friday.

What is multi-listed flexible wire?

Multi-Listed Flexible Wire is Class K flexible wire listed THHW / TEW / MTW / AWM / BC-5W2 / SAE TYPE SGT. Stocked 10 AWG to 750 MCM. Rated 600 V, -40°C to 105°C. Suitable as flexible building wire, battery cable, welding cable, and single-conductor boat cable.

What is flexible wire?

Flexible wire is a Class K stranded conductor that bends more than standard building wire. The flexible wire on this page is Polar Wire Multi-Listed Flexible Wire, listed THHW, MTW, AWM, BC-5W2 and SAE SGT. 10 AWG to 750 MCM, 600 V, -40°C to 105°C.

Is this THHW building wire?

Yes. It is listed THHW and MTW. Sizes 10 AWG to 750 MCM. Cable tray (CT) rated 1/0 AWG to 750 MCM. 600 V, -40°C to 105°C. UL file E321440.

What is ASTM B172?

ASTM B172 is the soft annealed copper stranding spec this conductor is built to. Polar Wire Multi-Listed Flexible Wire is 100% copper, Class K, 30 AWG strands, to ASTM B172.

What is a Class K conductor?

A Class K conductor is 30 AWG strands bunched into the finished size. Multi-Listed Flexible Wire is listed THHW, TEW, MTW, AWM, BC-5W2 and SAE TYPE SGT. Strand counts by size are in the Class K stranding comparison chart.

What makes this wire different from standard THHW or battery cable?

Polar Wire's Multi-Listed Flexible Wire is constructed with 30 AWG Class K fine stranding, so it flexes more than standard building wire or battery cable. Conductors are 100% soft annealed copper under extra-flexible PVC that resists oil, acid, moisture, heat, and abrasion. Built for vibration and harsh service.

What certifications and ratings does this wire have?

This wire is UL listed and CSA listed as TEW, file E321440:

600 V
−40°C to 105°C (−40°F to 221°F)
UL VW-1 and CSA FT1 flame tests
UL AWM styles 1232, 1284, 1338, 1426, 10269; CSA TEW FT-1
CT (cable tray) rated for 1/0 AWG to 750 MCM

Can this wire be used in marine or automotive applications?

Yes. It is listed as BC-5W2 boat cable and SAE Type SGT. Suitable for:

Marine-grade single conductor boat cable
Automotive battery, starter and ground cable
Wiring in RVs and off-grid vehicles

Is this wire approved for use in cable trays or industrial panels?

Yes. Sizes from 1/0 AWG to 750 MCM are CT (cable tray) rated. The wire is also listed as machine tool wire (MTW) for internal wiring of industrial control equipment, to NEC and NFPA 79.

Does Polar Wire offer cable assemblies built with Multi-Listed Flexible Wire?

Yes. Polar Wire assembles this wire to specification, with the lugs and put-up the drawing calls for. Stocked golf cart cables on the online store are built from it. Custom cable assembly. Prebuilt cables.

How much does Multi-Listed Flexible Wire cost?

Typical price on the online store is $0.70 to $33 per foot. 10 AWG sits near $0.70. 500 MCM sits near $33. Sold by the foot. See the store for today's price: Multi-Listed Flexible Wire.

Buy it, or have it quoted

Cut lengths and spools are on the online store. 1 AWG, 3/0, 750 MCM, custom colors and tin-plating are quoted from here.

Buy onlineCut lengths and spools, shipped from the store Call(907) 561-5955 Emailsales@polarwire.com DocumentsSpec sheet, stranding, and DC resistance Retail store7941 Brayton Drive, Anchorage, AK