The Drive That Overheated in the Cabinet We installed a servo drive in a sealed electrical cabinet. The drive’s dissipation was 100 W. The cabinet was 600 × 600 × 300 mm, sealed (IP54), no fan. On the floor, the drive faulted with “overtemperature” after 20 minutes. The cabinet internal temperature climbed to 65°C. The …

Continue reading “Cabinet Thermal Design: Heat Dissipation, CFM Fan Sizing and AC Selection”