Current-limiting Class L fuses are available in fast-acting and time-delay versions. Fuses in the LDC and KLPC series feature POWR-PRO® performance, and LDC series fuses are the first in this class of UL Class industrial fuses rated at 600 V ac and 600 V dc. Littelfuse also offers KLLU series Class L fuses with POWR-GARD® performance. Common applications include protecting circuits that carry loads as high as 6 kA for electrified crane rails, light rail systems, and large electric motors.
Current ratings from 150 A to 6 kA
Interrupting ratings up to 20 kA to 480 V ac, 50 kA at 600 V dc, and 300 kA at 600 V ac
Fast-acting and time-delay versions available
Maximum current limitation minimizes equipment and system damage from short circuits
Class L Fuses Parts
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Class L Fuses Applications
Highlights Section
Ac mains
Electrified crane rails
General feeder and branch circuits
Large industrial dc motors
Light rail systems
Solar inverters
Variable speed drives
Class L Fuses Resources
Updated
POWR-Gard Catalog
Find fuses engineered to provide overcurrent and short circuit protection in industrial, renewable energy, and processing and extraction applications.