275A Dual Bus Bar – M8 (5/16) Studs w/ #8 Screws

275 A Dual Bus Bar — Red (Positive) + Black (Negative)

Compact, high-capacity power distribution for vans, RVs, boats, and off-grid systems.

Mix heavy feeders on 4 × M8 (5/16") studs with accessory circuits on 6 × #8 screws to keep your wiring clean and serviceable.

Includes both red (positive) and black (negative) bus bars, mounting screws, and insulating covers. Rated up to 48 V DC.

Why you’ll love it

• High current, tidy layout: 275 A continuous rating for main feeds, plus six small-screw take-offs for accessories.
• Mixed wiring made easy: Works with M8 (5/16") and M10 (3/8") cable lugs while leaving clearance for #8 screw circuits.
• Cleaner cabling: Combine heavy feeders and multiple small returns on one compact, serviceable block.
• Colour-coded safety: Red (positive) and black (negative) bars make polarity obvious and reduce wiring mistakes.
• Protective covers included: slide on covers improve safety, prevent shorts, and give a clean, professional finish.  Nylon nuts lock in place, even with heavy vibration.
• In-house tested: Verified to handle the loads, so your system is safe and reliable.

Great for

Battery banks, DC distribution panels, marine/RV power centers, and 12–48 V off-grid systems where you want neat, serviceable wiring.

Quick Specs

What’s included

• Red (positive) bus bar with insulating cover
• Black (negative) bus bar with insulating cover
• Mounting screws and hardware

Tip: Using large studs for feeders and #8 screws for small circuits makes cable marshalling neat and fast.

Install notes

• Torque lugs per hardware/cable specs (typical M8 is ~7–10 N·m; verify for your lugs).
• #8 screws suit #16–#10 AWG accessory wiring; ensure ring lugs seat fully.
• Use the insulating covers and maintain clearance from nearby conductive parts.