Class J Fuse Block Current Rating 30 Amps Maximum Voltage 600 Volts Number of Poles 3 Wire Size 14-2 AWG Connector Type Box Blown Fuse Indicator No Fuse Diameter 13/16 Inch Fuse Block Design Pyramid Mounting Style Bolt Down Fuse Length 2 1/4 Inches Length 4.13 Inches Width 3.13 Inches Depth 3.06 Inches