Power Assemblies and Controllers

Circuit Protection

Littelfuse Class L Fuses

KLPC Series

Littelfuse’s KLPC series POWR-PRO fuses meet the most stringent project specifications, including silver links, silver-plated copper end bells, glass-reinforced melamine bodies. O-ring seals between body and end bells and granular quartz fillers. 

Littelfuse KLPC Series Fuse by GD Rectifiers

Amperage range (A): 200 – 6,000A

Voltage ratings (Vac): 600V

Voltage ratings (Vdc): 480V




-       Eliminates unnecessary downtime

-       Provide best protection for system components

-       KLPC POWR-PRO series fuses’ time delay withstands system surges and keeps circuits in service

-       Maximum current limitation means less equipment and system damage when short circuits occur

-       KLPC series provides maximum coordination with fuses and circuit breakers both on the line and load side of the fuses



-       Service switches

-       Switchboard mains and feeders

-       Bolted pressure contact switches

-       Motor control center mains

-       Large motor branch circuits

-       Primary and secondary protection for transformers

-       Protection of power circuit breakers

-       UL listed series-rated protection for molded case circuit breaker panel boards and load centres


KLLU Series

The KLLU series fuses meet UL requirements for UL Class L fuses and provides a cost-effective alternative to KLPC POWR-PRO fuse with a slightly higher peak let through current.

 Littelfuse KLLU Series Fuse by GD Rectifiers

Amperage range (A): 601 – 4,000A

Voltage ratings (Vac): 600V

Voltage ratings (Vdc): 300V




-       Current limiting

-       Easily coordinated with other system components

-       200kA AC interrupting rating



-       Service switches

-       Switchboard mains and feeders

-       Motor control centre mains

-       Large motor branch circuits

-       Circuit breaker protection


LDC Series

Littelfuse’s LDC series is an ideal fuse for DC applications because of it’s high DC voltage and interrupting ratings. The DC interrupting performance exceeds UL listing requirements.

 Littelfuse LDC Series Fuse by GD Rectifiers

Amperage range: 150 – 2,000A

Voltage ratings (Vac): 600V

Voltage ratings (Vdc): 600V




-       POWR-PRO performance

-       Extremely current limiting

-       600Vac/dc rated

-       200kA AC interrupting rating

-       50kA DC interrupting rating



-       Solar inverter and array protection

-       UPS protection

-       DC distribution and variable speed drives

-       Mass transit systems


For further information on Littelfuse’s Class L Fuses, please call: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).


Littelfuse is a global manufacturer of leading technologies in circuit protection, power control, and sensing. Littelfuse products are found in automotive and commercial vehicles, industrial applications, data and telecommunications, medical devices, consumer electronics, and appliances. They partner with customers to design, manufacture, and deliver innovative, high-quality solutions, for a safer, greener, and increasingly connected world—everywhere, every day.

Further information:

You can find further information on Littelfuse using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk