$79.00
| Voltage | AH/kVA | Length | Width | Height | Weight |
|---|---|---|---|---|---|
| 500 V | 100 A | 92.1mm | 24.1mm | n/a | 0.09kg |
| Voltage | 500 V |
| Amp/H | 100 A |
| Length | 92.1mm |
| Width | 24.1mm |
| Height | n/a |
| Weight | 0.09kg |
The BUSSMANN FWH-100A is a North American–style high-speed (fast-acting) semiconductor fuse for protecting rectifiers, inverters, and DC common-bus rails in UPS and power-electronic systems. This listing features reclaimed, continuity-tested units removed from decommissioned, fully functional equipment.
High-Speed Protection:
Fast-acting element tailored for semiconductor circuits and tight let-through requirements.
Stud-Mount Body:
North American cartridge style with bolt-down blades for robust, low-impedance connections.
High Interrupt Ratings:
Up to 200 kA RMS Sym on AC systems (50 kA on DC) to handle severe faults.
Reclaimed & Verified:
Every unit continuity-tested and visually inspected; OEM-new stock available by request.
| Parameter | Value |
| Manufacturer | BUSSMANN (Eaton) |
| Part Number | FWH-100A |
| Fuse Type / Category | High-speed semiconductor fuse (fast-acting), non-indicating |
| Rated Voltage | 500 V AC / 500 V DC |
| Rated Current | 100 A |
| Interrupting Capacity | 200 kA (AC, RMS Sym) | 50 kA (DC) |
| Indicator | None (non-indicating) |
| Body / Size | North American stud-mount cartridge (FWH series) |
| Terminals / Mounting | Bolt-down blades; 0.375 in mounting holes (stud-mount) |
| Pre-arcing I²t @ 500 V | 475 A²s |
| Clearing I²t @ 500 V | 2,000 A²s |
| Power Loss (at rated) | 17 W |
| Dimensions (L × Ø) | 3.625 in × 0.947 in (92.1 mm × 24.1 mm) |
| Approx. Weight | ≈ 0.20 lb (≈ 0.09 kg) |
| Compliance / Approvals | UL Recognized (35–800 A range); CSA Component Acceptance; CE; RoHS |
| UPC / EAN | UPC 051712150088 | EAN — |
| Fuse | Compatible UPS/Power-Electronics Models | Notes |
| FWH-100A | Used in UPS frames, DC drives, and converter stacks requiring BUSSMANN FWH 500 V, 100 A stud-mount high-speed fuses. | Verify bolt-hole geometry and overall length (3.625 in × 0.947 in) before ordering. |
