Panelboard Interior, Convertible, Main Lug, Circuit Breaker Series QHB, QOB, QOB-VH, Amps 600 A/ PANEL MATERIAL: STEEL SPECIAL FEATURES: PANEL ELECTRICAL INTERIOR, MAIN TYPE CIRCUIT BREAKER, BUS AMPERE RATING: 600A, UL LISTED,I-LINE, MAXIMUM VOLTAGE RATING 600VAC-250VDC, 35 SPACE, HEIGHT 68 INCHES,