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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | OptiFuse |
| Manufacturer Product Number | TPK-20A |
| Description | Industrial Fuse; 20 A; Midget; Time-Delay; 10x38mm; UL 248-14; 500 VAC; cULus |
| Datasheet | Download Datasheet |
The OptiFuse TPK-20A is a 20 A time-delay (slow-blow) midget fuse, rated 500 VAC.
A midget fuse is a 13/32 in diameter supplementary fuse (most are 1-1/2 in long), for protecting equipment and control circuits behind branch-circuit protection rather than as branch protection itself. A time-delay element rides through the brief inrush of motors, transformers and capacitive power supplies, yet still opens on a sustained overload.
Interrupting rating: 10 kA @ 500 VAC. Opening times, as a percentage of the rated current: 100%: max. 1 h; 200%: 12 s to 120 s.
Construction: 13/32 x 1-1/2 in (10.3 x 38.1 mm); ferrule terminals.
It is cULus Listed (UL file E197390). Standards: UL 248-14, CSA C22.2 No. 248.14.
| Category | |
| Manufacturer | OptiFuse |
| Model | TPK |
| Current Rating (A) | 20 |
| Size | 13/32 x 1-1/2 in (10.3 x 38.1 mm) |
| Speed | Time-Delay (Slow-Blow) |
| UL Class | Midget (supplementary) |
| Voltage Rating | 500 VAC |
| Breaking Capacity | 10 kA @ 500 VAC |
| Terminal Type | Ferrule |
| Approvals | cULus Listed |
| UL File Number | E197390 |
| Standards | UL 248-14, CSA C22.2 No. 248.14 |
| Opening Time | 100%: max. 1 h; 200%: 12 s to 120 s |