Littelfuse® KLLU4000 POWR-GARD® KLLU Current Limiting Time Delay Fuse, 4000 A, 600 VAC/300 VDC, 20/200 kA Interrupt, Class L

Power Fuse
220583 MFG #: KLLU4000
Littelfuse
1788.78000 / ea
KLLU series UL Listed, time-delay, Class L are quality fuses in every sense of the word. They were developed to provide a somewhat lower priced alternate to the POWR-PRO KLPC series fuses. KLLU series fuses meet or exceed all UL requirements for Class L fuses. For superior protection and performance, specification-grade POWR-PRO KLPC series fuses are the recommended fuses.
QTY
  • Applications
  • Features
Service Switches, Switchboard Mains and Feeders, Motor Control Center Mains, Large Motor Branch Circuits and Circuit Breaker Protection Applications
Current limiting - reduces short circuit damage to systems and equipment and reduced downtime
Easily coordinated with other system components
Ten second minimum time delay at 500 percent of rating eliminates needless downtime caused by heavy starting currents of large motors and other inductive loads
Selective coordination - KLLU fuses coordinate well with other class L fuses and with all current-limiting Littelfuse® fuses rated 600 A or less
Reduced downtime
KLLU fuse time-current characteristics closely match typical time-current curves of circuit breakers
Although fuse/circuit breaker systems can seldom be 100 percent coordinated , KLLU series fuses permit use of a wider range of breaker setting than fast-acting class L fuses
Excellent protection for a single breaker or a group of breakers
200 kA at 600 VAC, 20 kA at 300 VDC interrupting rating
Time-Delay