Switch and fuses combined to simplify operation and protection while saving space

17-10-2023 | Littelfuse | Passives

Littelfuse, Inc. has released its Class J Fuse Disconnect Switch. The compact device combines a switch and multiple fuses into a single product, providing a simpler way to manually open and close a circuit whilst safeguarding against overcurrent and short circuits. When the switch detects an overload or short circuit, the fuse blows automatically to open or break the circuit upstream and downstream, then shuts off the equipment. The 600V switch is available in 30, 60, 100, and 200A and protects many applications in different industries, including HVAC/R, mining, solar, energy storage, and industrial.

"When installing or maintaining equipment, the Class J Fuse Disconnect Switch makes it both safer and easier to connect or disconnect the power in an isolated area," stated Augusto Sanchez, Littelfuse industrial business product manager. "In addition, with a higher interrupting rating, the switch delivers more robust protection, increases personnel safety and offers a longer switch life."

Other Class J Fuse Disconnect Switch features include a small footprint to save space and provide design and a no-tools-required frontal direct handle for easy and quick installation. The safe-to-touch transparent fuse covers cannot be opened in the 'ON' position, providing extra protection and offering visibility to fuses without opening the module for added convenience. It provides horizontal, vertical or 45° switch mounting options for installation adaptability. Optional handles with front or side operation accommodate system design. An optional lockout-tagout padlock may be added when the device is in the 'OFF' position to ensure equipment is properly shut off during maintenance or repair to prevent the release of hazardous energy safeguarding personnel and equipment. A 'TEST' position on the handle permits control circuit auxiliary testing without switching the main contacts on for added safety.

By Seb Springall