AutomationDirect offers Edison’s modular knifeblade fuse blocks for Class J and Class R fuses to simplify design and enhance safety. Optional high-clarity, see-through, IP20 finger-safe covers, with or without indication, have a built-in lockout/tagout feature which improves safety by preventing unauthorized fuse insertion or removal. The modular fuse blocks have a snap-together design and are UL listed with creepage and clearance distances for feeder and branch circuits; 200A and larger fuse blocks also meet requirements for service entrance circuits. Modular Class J and Class R fuse blocks start at $21.50. The industry’s first modular Class J power distribution fuse blocks, starting at $27.50, combine fuse block functionality with power distribution capability, eliminating the need for a separate power distribution block. Optional finger-safe covers are also available.