Littelfuse Time Delay Cartridge Fuse, 20A 250V, 5mm x 20mm

The Littelfuse Time Delay Cartridge Fuse is a critical electrical safety component designed to provide reliable overload protection for a wide range of circuits. With a current rating of 20 Amps and a voltage rating of 250V AC, this fuse is engineered to withstand normal, brief current surges without unnecessary interruption, making it ideal for circuits with motors, solenoids, or transformers.

Its time-delay (or slow-blow) characteristic is its defining feature. This allows the fuse to tolerate harmless temporary inrush currents that occur during equipment startup, while still providing decisive protection against sustained overloads or short circuits. This helps prevent nuisance blowing and ensures operational continuity for inductive loads.

The fuse conforms to the standard 5mm x 20mm cartridge size, a common metric format compatible with a vast array of fuse holders, blocks, and panels. It features a high breaking capacity of 400A AC, meaning it can safely interrupt substantial fault currents, protecting both the downstream equipment and the circuit itself from damage.

Constructed to meet rigorous standards, this fuse from the Littelfuse 215 series offers dependable performance for industrial control panels, power supplies, appliances, and other electrical installations where stable and safe operation is paramount. Its compact, standard dimensions facilitate easy replacement and inventory management.

Key Features:

• Time-Delay Characteristic: Resists nuisance blowing from motor start-ups or inrush currents.
• High Breaking Capacity: Can safely interrupt fault currents up to 400A AC.
• Standard Metric Size: 5mm x 20mm format for broad compatibility.
• Reliable Protection: Safeguards electrical circuits and equipment from overloads and short circuits.