Cobra Wire & Cable 4/0-X-FLEX-B: Specs & Datasheet

Cobra Wire & Cable 4/0-X-FLEX-B: Specs & Datasheet

MPN: 4/0-X-FLEX-B

The Cobra Wire & Cable 4/0-X-FLEX-B is a flexible 4/0 battery cable built with Class K fine stranding for battery banks, inverters, UPS systems, and transformer wiring. If you searched “cobra wire” for this cable's ampacity or construction specs, the full published table is below.

Specifications

Gauge size 4/0
Stranding Class K 30 gauge bare copper
Voltage rating 600/1000 V
Amperage capacity 454 A
Temperature rating 105°C dry, 75°C wet
Insulation Flame-retardant PVC compound (VW-1)
Standard compliance NEC Types MTW & THW; UL AWM Styles 1232/1284/10269
Cable weight 820 lbs per 1,000 ft
Nominal OD 0.745 in

Compatible With / Used In

  • Battery banks and inverter DC cabling — Class K flexibility routes easily in tight enclosures
  • Uninterruptible power supplies (UPS) — meets UL and NEC requirements for power supply cable
  • Transformers and internal/external wiring — 600/1000 V rating across a broad spectrum of power applications
  • Moisture, abrasion, acid, and oil exposure — flame-retardant VW-1 PVC insulation

Datasheet Availability

Cobra Wire & Cable publishes UL AWM documentation for this cable family. For the exact 4/0-X-FLEX-B specification sheet, call (502) 790-0600 and we will supply it with your quote.

● In stock at PES Supply → In stock at Portlandia Electric Supply — cut-length and bulk orders ship nationwide.
View the 4/0-X-FLEX-B product page →

Frequently Asked Questions

What is the ampacity of Cobra 4/0 X-Flex cable?

The published amperage capacity of the 4/0-X-FLEX-B is 454 amps, with a 600/1000 V rating and 105°C dry / 75°C wet temperature rating.

What stranding does Cobra 4/0-X-FLEX-B use?

Class K 30 gauge bare copper stranding, which gives the cable its flexibility for routing in tight spaces.

Is Cobra 4/0 X-Flex cable NEC compliant?

Yes — it complies with NEC Types MTW and THW, plus UL AWM Styles 1232/1284/10269, with flame-retardant VW-1 PVC insulation.

Is Cobra 4/0-X-FLEX-B in stock?

Yes — in stock at Portlandia Electric Supply. Call (502) 790-0600 for cut lengths, bulk pricing, and lead time.

Specifications sourced from the manufacturer listing data maintained by Portlandia Electric Supply. Where a value is not published, it is marked as such — we do not estimate specifications. Questions: call (502) 790-0600. Portlandia Electric Supply, Louisville, KY — 12+ US distribution hubs.