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| PartNumber | BK/81B-7-1/2 | BK/81A-10 | BK/80B-2 |
| Description | Specialty Fuses BK/81B-7-1/2 | Specialty Fuses BK/81A-10 | Specialty Fuses BK/80B-2 |
| Manufacturer | Bussmann / Eaton | Bussmann / Eaton | Bussmann / Eaton |
| Product Category | Electrical, Specialty Fuses | Electrical, Specialty Fuses | Electrical, Specialty Fuses |
| Series | 81 | 81 | 80 |
| Product | Specialty Fuses | Specialty Fuses | Specialty Fuses |
| Type | Telecommunication Power Fuse | Telecommunication Power Fuse | Telecommunication Power Fuse |
| Packaging | Bulk | Bulk | Bulk |
| Part Aliases | 81B-7-1-2 BK-81B-7-1-2 | 81A-10 BK-81A-10 | 80B-2 |
| Unit Weight | 0.128000 oz | 0.128000 oz | - |
| Mounting Style | Holder | Holder | Holder |
| Current Rating | 7.5 A | 10 A | 2 A |
| Termination Style | Clip | Clip | Clip |
| Length | 68.2 mm | 68.2 mm | 68.2 mm |
| Fuse Type | Fast Blow | Fast Blow | Fast Blow |
| Diameter | 7.11 mm | 7.11 mm | 7.11 mm |
| Product Type | Telpower Specialty Fast Acting Non Indicating Fuse | Telpower Specialty Fast Acting Non Indicating Fuse | Telpower Specialty Visual Indicating Fuse |
| Voltage Rating DC | 160 VDC | 160 VDC | 160 VDC |
| Indicator Style | Visual Indicator with Alarm Capability | Visual Indicator with Alarm Capability | Visual Indicator with Alarm Capability |
| Body Style | Cartridge Fuses | Cartridge Fuses | Cartridge Fuses |