Available in Black, Red, Blue, White, Brown, and non-insulated (for grounding) (specify when ordering). Use for adding more wire terminations or for isolating or grounding multiple positive / negative circuits. Usable in any system, on or off grid - not just Outback Power systems. Also good for RV and marine. All TBB models have three #1/0 to 14 AWG and eight #6 to 14 AWG screw type compression terminals, which means no ring lugs required. Available with black, white and red insulators. The Battery Bus is .25" (7 mm) thick tin plated copper and can be mounted on the back plate of any enclosure. Bus bar with black insulators - use as L1 hot or DC negative TBB-Ground non-insulated - use as a general purpose ground bus bar for systems. TBB-BLUE Bus bar with blue insulators - use as Phase C on three phase systems. TBB-RED Bus bar with red insulators - use as L2 hot or DC positive. TBB-WHITE Bus bar with white insulators - use as AC neutral or DC negative. TBB-BROWN Bus bar with brown insulators - use as AC hot in European systems. Brown is not always stocked, but typically 2-3 days delivery time.