All PM 255 units feature welded steel construction. Three point cam-type, high-strength latches seal the doors shut. Lockable latches discourage tampering. Wide bulkhead doors provide easy access. Each full-length door has durable heavy-duty hinges with brass pivots. Foot operated holders lock the doors open, and provide ample room for pulling cables and making terminations. Interrupter switches are maintenance-free and rated at 600 amp. S&C® Power Fuses provide full-fault-spectrum protection. Switches are manually operated by removable switch handles. Bus connections are silver plated copper for long life. Call today to discuss your requirements with a Park sales representative.