Front Access, Dual Bus for +/-24 or +/-48VDC, 19"/23" rack , 2 RU, 20 GMT/Panel, 10 GMT/Bus, 200 Amps/Panel, input Block two 1/4" studs, Output #6 screw term.(front), Alarm Connection Wire wrap, Nebs level 3, Earthquake Zone 4The Westell N250120-N-L33 Fuse Panel provides up to 20 circuits for the distribution of DC power to equipment. Each of the 20 circuits is individually protected by a GMT style telecommunication fuse located on the panel's faceplate. Alarm circuits are provided to indicate and extend alarm conditions when faults occur. Normal Operation LEDs are provided to indicate the status of each bus in the panel.