LA50QS350-4 or LA50QS3504 POWR-GARD LITTELFUSE SEMICONDUCTOR FUSE 350Amp - NEW
Price is for 1 each.

FEATURES:
Very Fast Acting
Extremely Current Limiting
500Vac, 200kA I.R.; 500Vdc, 87kA I.R.
The LA50QS provides the best protection features including lower I2t, longer life when subjected to cyclic loading and lower watts loss.

APPLICATIONS:
Semiconductor fuses are designed specifically for supplementary protection of semiconducting devices such as silicon controlled rectifiers (SCRs), diodes, thyristors, triacs, transistors, and similar solid-state devices. Protection of 500 volts or less solid state equipment such as motor drives, UPS, inverters, etc.