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Two copper wire cap connectors with open ends and ring terminals side by side

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

  • Product 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.

How it compares

Measured against everything we stock in Wire Connectors & Cable Ties, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 80% of the 1,040 comparable items (median $13.99).

Specifications

Product
Brand nameUnique Bargains
Product 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.

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