The Optifuse TCA-3A is a time-lag, 3 Amp, 250VAC, ceramic, 6.3x32mm, brass-based fuse, and is designed for a variety of applications in demanding electrical environments. It features an additional layer of protection in the form of a ceramic tube that acts to delay the response time of the fuse and prevent premature triggering. This feature allows for better protection of the install equipment or circuit. This fuse also provides protection against short circuits, ground faults, and overloads. It can handle up to 3 Amps of current and up to 250 VAC. The external construction is brass-based, with a 6.3x32mm design. All Optifuse fuses meet UL, CSA, and IEC standards.