Legrand 010250 Cylindrical Safety Fuse 5x20mm 5A 250V

The Legrand 010250 cylindrical safety fuse is a high-performance component engineered to provide reliable overcurrent protection for electrical circuits. Measuring 5x20mm, this fuse is designed to safeguard sensitive electronic devices and industrial equipment from damage caused by electrical surges or short circuits. Featuring a durable ceramic body, it ensures consistent performance and safety in demanding electrical environments.

Advantages

This fuse offers a high rupture capacity, allowing it to safely interrupt significant fault currents up to 1500 Amps. Its instant reaction design ensures that the circuit is disconnected rapidly when an overcurrent condition is detected, effectively preventing damage to connected hardware. Built to comply with international EN/IEC 60127-2 standards, the Legrand fuse provides professional-grade reliability for both residential and industrial electrical installations.

Suitable for

• Dimmers and lighting control systems
• Viking terminal blocks
• Emergency lighting units
• Electrical transformers
• General electronic circuit protection

When it may not be suitable

This fuse is not intended for use in high-voltage power distribution networks exceeding its 250V rating. It should also not be used in applications requiring a different physical size or a slow-blow (time-delay) characteristic, as this model is designed for instant reaction.

Key specifications

• Dimensions: 5x20mm
• Rated current: 5 Amps
• Rated voltage: 250 Volts
• Rupture capacity: 1500 Amps
• Body material: Ceramic
• Compliance: EN/IEC 60127-2

How to use

To install the fuse, ensure the power supply to the circuit is completely disconnected. Locate the fuse holder within your device or terminal block and carefully insert the 5x20mm cylindrical fuse. Ensure it is seated firmly in the clips. Once installed, restore power to the system. If the fuse blows, it must be replaced with an identical unit after identifying and resolving the underlying electrical fault.

What to consider before purchase

• Verify the required current rating (5A) matches your device specifications.
• Ensure the physical dimensions (5x20mm) are compatible with your fuse holder.
• Check that the voltage rating (250V) is sufficient for your application.
• Confirm if your application requires a fast-acting fuse or a time-delay type.

Usage recommendations

Always replace a blown fuse with one of the exact same rating and type to maintain the safety integrity of your electrical system. Never attempt to bypass a fuse or use a higher amperage rating than specified by the equipment manufacturer.