The ABB 1SFA899005R5018 is a PSFU-1250 semiconductor fuse rated for 1250 A operational current. It protects power semiconductors — diodes, thyristors, IGBTs — in drive and converter circuits where standard fuses can't clear fast enough to prevent junction damage. Semiconductor fuses like this one are sized for the short-circuit current capability of the device they guard, not the continuous load. The 1250 A rating means it carries that current in normal operation and opens rapidly under fault to limit let-through energy.
ABB 1SFA899005R5018 PSFU-1250 Semiconductor Fuse, 1250 A
MPN1SFA899005R5018
Active
ABB, PSFU series, semiconductor fuse, order code 1SFA899005R5018, rated 1250 A, active production.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Product main type | PSFU |
| Object classification code | Q |
| Popular downloads (Instructions and manuals) | 1SFC388004-89 |
| Popular downloads (Data sheet, technical information) | 1SFC132005M0201 |
| Rated operational current - In-Line connection | 1250 A |
| Material compliance (Conflict minerals reporting template) | 9AKK108467A5658 |
Product details
Frequently asked questions
What is the current rating of 1SFA899005R5018?
The ABB 1SFA899005R5018 PSFU-1250 semiconductor fuse is rated for 1250 A operational current.
Is 1SFA899005R5018 a semiconductor fuse?
Yes, the 1SFA899005R5018 is a PSFU-1250 semiconductor fuse, designed to protect power semiconductors in drive and converter circuits.
MPN
1SFA899005R5018