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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 | FSA-6.3A |
| Description | Glass Fuse; 6.3 A; Fast-Acting; 6.3x32mm; UL 248-14; 250 VAC |
| Datasheet | Download Datasheet |
The OptiFuse FSA-6.3A is a 6.3 A fast-acting glass cartridge fuse in the 6.3 x 32 mm (1/4 x 1-1/4 in) size, rated 250 VAC.
A fast-acting fuse opens quickly on an overload, for resistive and lightly loaded circuits with little switch-on surge. It fits standard fuse clips and holders of the same size.
Breaking capacity: 200 A @ 250 VAC; 100 A @ 125 VAC (PSE); 100 A @ 250 VAC (PSE); 100 A @ 250 VAC KC. Opening times, as a percentage of the rated current: 100%: min. 4 Hr; 135%: max. 1 Hr; 200%: max. 5 s. Typical cold resistance 0.0157 Ω, melting I²t 168.7 A²s. It operates from -55 to +125 °C.
Construction: glass body.
It is cULus Listed (UL file E197390). Standards: UL 248-14, CSA C22.2 No. 248.14.
| Category | |
| Manufacturer | OptiFuse |
| Model | FSA |
| Current Rating (A) | 6.3 |
| Size | 6.3 x 32 mm (1/4 x 1-1/4 in) |
| Speed | Fast-Acting |
| Voltage Rating | 250 VAC |
| Breaking Capacity | 200 A @ 250 VAC; 100 A @ 125 VAC (PSE); 100 A @ 250 VAC (PSE); 100 A @ 250 VAC KC |
| Body Material | Glass |
| Mounting Style | Cartridge |
| Approvals | cULus Listed |
| UL File Number | E197390 |
| Standards | UL 248-14, CSA C22.2 No. 248.14 |
| Opening Time | 100%: min. 4 Hr; 135%: max. 1 Hr; 200%: max. 5 s |
| Melting I²t (A²s) | 168.7 |
| Cold Resistance (Ω) | 0.0157 |
| Operating Temperature (°C) | -55 to +125 |