Littelfuse® LDC350 POWR-PRO® LDC Current Limiting Fast Acting Fuse, 350 A, 600 VAC/VDC, 50/200 kA Interrupt, Class L

Class L Fuses
873343 MFG #: LDC350
1067.80000 / ea
Littelfuse POWR-PRO LDC series Class L fuses represent another first in fuse protection. LDC series fuses are the first UL Listed 600 volts AC and DC Class L fuse. Since they may be used for both AC and DC, they eliminate the concern that AC only fuses may be inserted into DC circuits. While LDC series fuses' UL Listed DC interrupting rating is more than adequate for most applications (50,000 amperes at a 16 millisecond time constant), tests in our high power testing laboratory have shown that this remarkable fuse is capable of performing at much longer time constants. This makes the fuse uniquely suited for such applications as crane rail circuits and mass transit systems. Contact the factory for application information for special needs such as this. For AC only systems, consider the use of POWR-PRO KLPC series fuses. They have a full ten seconds time-delay at 500% rated current, and have a wider range of ratings.
  • Applications
  • Features
Inverters/UPS/DC distribution
600 VAC/VDC rated - "All-purpose" Class L fuse reduces inventory requirements because the need for special fuses is eliminated
UL listed 200000 A.I.R. AC - 50000 A.I.R. DC - reliable interruption of all over currents up to their ratings, minimizes the need for time-consuming and expensive short circuit studies
Moderate time delay - four seconds time delay at 500 percent current provides adequate time-delay for many AC applications and most DC applications, they will withstand most harmless overloads or line surges, if your needs exceed the LDC capabilities, consider the use of KLPC fuses for AC applications
Selective coordination - LDC series fuses coordinate well with all Littelfuse fuses rated 600 A or less, a combination of LDC and IDSR series fuses provide a complete 600 V rated DC system
Extremely current limiting - maximum current limitation reduces damage to circuits and equipment under short circuit conditions, stops damaging short circuits faster than any mechanical protective device
Silver plated copper caps
200 kA at 600 VAC, 50 kA at 600 VDC interrupting rating