GE Industrial PowerMark Gold™ Convertible main loadcenter is rated at 120/240-Volt AC. Interrupt current rating of this loadcenter is 22-Kilo-Amps. This 1-Phase loadcenter has copper bus and galvanized steel enclosure for longer endurance. It measures 14-Inch x 3-3/4-Inch x 39-3/16-Inch. It features 1-Piece interior to make removal and reinstallation easier. Type TQHL 40-Circuit loadcenter incorporating 3-Wire wiring configuration, accepts wires of size 1-AWG - 250-KCMIL and aluminum wires of size 2/0-AWG - 250-KCMIL. It has top/bottom-feed location and supports flush/surface mounting. Loadcenter featuring split neutral type, withstands temperature rating of 60/75 deg C. Loadcenter is UL listed and GSA compliant.