Description

RK1 fuses are extremely current-limiting fuses meaning they

greatly reduce or eliminate damage to circuits and equipment under

short-circuit conditions. Replacing existing Class H, K and RK5 fuses

with RK1 fuses is one of the easiest ways to immediately improve

the protection of plant workers and equipment.

Applications

• All general purpose circuits

• Motors

• Transformers

• Safety upgrades

Features/Benefits

• POWR-PRO Performance

• Indication available

• Dual-element design

• Extremely Current-Limiting

• IEC Type 2 “No Damage” protection to IEC and NEMA

type motor starters

• Indicating and DIN mount fuse holders available

Specifications

Voltage Ratings 600 Vac/300 Vdc (LLSRK/LLSRK_ID)

250 Vac/125 Vdc (LLNRK)

Interrupting Ratings AC: 200 kA rms symmetrical

300 kA rms symmetrical

(Littelfuse self-certified)

DC: 20 kA

Ampere Range 1/10 – 600 A

Approvals AC: Standard 248-12, Class RK1

UL Listed (File: E81895)

CSA Certified (File: LR29862)

DC: Littelfuse self-certified

Federal Specification WF-1814

(QPL- W-F-1814)