Overview
The Littelfuse KLK-2 is a fast-acting, current-limiting midget fuse rated for 600VAC and 2 amps. The KLK series fast-acting fuses are designed specifically for the protection of control circuits, street lighting, HID lighting, computers, and other applications without high in-rush currents. These fuses are intended to supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection. The KLK-2 is a non-indicating cartridge fuse suitable for both standard fuse blocks and indicating fuse blocks.
Key Features
- High-interrupting and current-limiting capability
- Fast-acting response for sensitive circuit protection
- Non-indicating design compatible with indicating fuse blocks to identify a blown fuse
- UL supplemental fuse classification
- Compact 10×38mm (midget) cartridge form factor
Technical Specifications
The KLK-2 delivers reliable protection with industry-standard dimensions and electrical performance suitable for industrial control and lighting applications.
Typical Applications
- Control circuit protection in industrial machinery and automation systems
- Street lighting and HID fixture protection
- Computer and UPS system supplemental protection
- HVAC control circuits and building automation
- Backup overcurrent protection in low-inrush-current installations
Compatibility & Replacements
Compatible With
- Standard midget fuse blocks rated for 600VAC
- Indicating fuse blocks (non-indicating fuse compatible)
- Industrial control panels and switchgear
- Compact snap-in fuse holders
- Single-phase and three-phase electrical systems
Replaces / Drop-In Replacement For
- Bussmann KLK-2 (same series from alternate supplier)
- Other OEM fast-acting 2A/600V midget fuses meeting UL 248-14 specifications
- Verify exact fuse block compatibility before ordering
Works With
- Class CC midget fuse holders
- 600VAC voltage-rated electrical distribution systems
- Equipment with low inrush current profiles
- UL-listed control circuits and auxiliary protection applications
