Fusible Disconnect Switches

A fusible disconnect switch—also known as a fused disconnect switch or switch-fuse (fuse switch disconnector)—combines the functionality of a disconnect switch and a fuse in one compact device. This versatile safety solution allows operators to turn power on or off and provides critical overcurrent protection by automatically breaking the circuit in the event of an overload or short circuit. Designed to safeguard both equipment and personnel, Littelfuse fused disconnect switches make it easy to isolate power safely while maintaining compliance with demanding electrical standards. Whether used in industrial control panels, power distribution systems, or renewable energy applications, our switch-fuse solutions deliver reliable protection and long-lasting performance. Explore the full range of fusible disconnect switches, including the Class J Fuse Disconnect Switch (LM3200), or browse related dc disconnect switches and control switches for complete system protection.