We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Unique-Bargains

Unique-Bargains OT-300A Wire Cap Connector 300A AWG 4-2/0 2pcs

SKU CH-5VQ6-QY7EG MPN OT-300A

Two open-end crimp lugs rated 300 A for AWG 4–2/0 cable, made from pure red copper with a 12.2 mm ring bore

  • TypeElectrical Wire Connector & Terminal Kits
  • 300A rated current for high-power battery cables
  • Pure red copper construction ensures excellent conductivity
  • Open-end crimp design fits AWG 4-2/0 wire gauges
  • Compact 52mm × 23mm × 15mm size saves installation space
  • 2mm ring internal diameter suits standard terminal studs

300A Copper Wire Cap Connectors

These open-end crimp terminal lugs are made from pure red copper for excellent conductivity. They suit automotive, industrial, marine and home-appliance wiring where a 300 amp rated connection is required. The pack contains two connectors sized for heavy-gauge battery cables.

AWG 4 to 2/0 Wire Range Limit

Each lug accepts conductors from 25 to 70 square millimetres, matching AWG 4 through 2/0. Cables outside this gauge range cannot be crimped securely in these terminals. The 12.2 millimetre ring bore fits a specific stud size; other bolt diameters will not match.

52 by 23 by 15 Millimetre Body Dimensions

The compact 52 millimetre length, 23 millimetre width and 15 millimetre height allow installation in tight compartments. Two millimetre wall thickness provides mechanical strength for high-current loads. Projects needing more than two terminations or a different stud diameter will require additional or alternative connectors.

Highlights

  • 300A rated current for high-power battery cables
  • Pure red copper construction ensures excellent conductivity
  • Open-end crimp design fits AWG 4-2/0 wire gauges
  • Compact 52mm × 23mm × 15mm size saves installation space
  • 2mm ring internal diameter suits standard terminal studs

Specifications

BrandUnique Bargains
TypeElectrical Wire Connector & Terminal Kits

Questions about this item

Which wire gauge range does the OT-300A connector accept?

The OT-300A accepts wires from 25 mm² to 70 mm², which corresponds to AWG 4 through 2/0.

What does the 300 A rating mean when the lug is installed on a battery cable?

The 300 A rating indicates the maximum continuous current the red copper lug can carry without overheating when properly crimped to a cable within the specified gauge range.

What stud size does the 12.2 mm ring internal diameter fit?

The 12.2 mm ring internal diameter is designed for M12 studs or bolts commonly found on battery terminals and power distribution blocks.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.