Littelfuse Fast Acting Fuse, KLK Series, 10mm x 38mm - 20A

The Littelfuse KLK Series Fast Acting Fuse is a high-performance component designed for reliable circuit protection in demanding electrical and electronic applications. These fuses offer precise interruption of fault currents, safeguarding sensitive equipment from damage due to overloads or short circuits. Constructed to meet rigorous standards, they provide a dependable safety barrier for a wide range of commercial and industrial systems.

Featuring a fast-acting blow characteristic, this fuse series responds rapidly to overcurrent conditions, minimising the risk of thermal damage to wiring and connected components. This makes them an ideal choice for protecting circuits where even brief surges could be detrimental. The compact, cylindrical glass body allows for visual inspection of the fuse element, providing a clear indication of its status—a vital feature for quick diagnostics and maintenance.

Key Features & Applications

• Robust Voltage Ratings: With ratings of 600VAC and 500VDC, these fuses are versatile enough for use in both alternating and direct current systems, covering a broad spectrum of electrical environments.
• Standardised Sizing: The metric dimensions of 10mm x 38mm (equivalent to 13/32” x 1-1/2”) ensure compatibility with a wide array of international fuse holders and panels, facilitating easy replacement and integration.
• Reliable Protection: The fast-acting design is crucial for protecting delicate semiconductor devices, control circuits, instrumentation, and power supplies where precise and rapid fault clearing is essential.
• Durable Construction: Built for longevity and stable performance, the KLK series fuses are a trusted component for maintaining system integrity and operational safety.

Ideal for engineers, technicians, and maintenance professionals, the Littelfuse KLK Series fuse is a fundamental part of any comprehensive electrical protectionstr at

Variant Details

• Size: 20A