Siemens Low Voltage RP1 Unassembled Lighting Panel. Dimensions (H x W x D) IN 68.0 x 20.0 x 5.75. 1-Phase 3-Wire allows 42 circuits user selects Main Device (Lug/Breaker). Rated 120/240V (400A). Special features tin-plated copper main bus,subfeed space included