The HLS-F is a through hole fuseholder block from Eaton Bussmann Electrical Division, designed for GMT indicating fuses. It is rated for 15A at 125VAC and 60VDC with PC pin termination.
The HLS-13 is a 13-circuit fuse block from Eaton Bussmann, rated for 15A at 125VAC/60VDC. It features through hole mounting, PC pin termination, and is designed for use with GMT indicating fuses.