RHH/RHW-2 USE-2 - The cable is rated at 600 volts and 90˚C for use in wet, dry, and direct burial. RHH/ RHW-2/USE-2 can be used in conduit, raceway, aerially (when supported) and directly buried in earth as recognized by the NEC.
XHHW-2 - The cable is rated at 600 volts and 90°C for use in wet and dry locations. XHHW-2 can be used in conduit and other raceways for services, feeders and other applications recognized by the NEC. Sizes 1/0 AWG and larger (4 AWG and larger in green) are cable tray (CT) rated. Sizes 12 - 4/0 AWG meet UL 44 standard for Thermoset-Insulated wires and cables. Also meets NEC Article 310.13
Three Conductor SER - SER is used as a service entrance cable, to convey power
from the service drop to the meter. It may also be used in
other branch circuits or feeders as permitted by the NEC.
SER is rated for 600V not to exceed 90⁰C wet and dry. Single
conductors are UL Listed Types XHHW/XHHW-2. The cable is
rated Sunlight Resistant for CT Use.