The 522621 Fuse manufactured by Eska is a time-lag, 2.5A, 250VAC ceramic, cylindrical fuse with a 5x20mm size. The fuse is designed for applications requiring higher inrush current and higher interrupting capacity ratings than traditional ferrule type fuses. It is suitable for a wide range of applications, including lighting, machinery, pumps, motors, HVAC, and other process control systems.