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BUY RO54 5*20MM 1A 250V FAST BLOW CERAMIC FUSES (20PCS) https://www.utsource.net/itm/p/12603889.html
 

Parameter	Specification
Type	Fast Blow
Material	Ceramic
Rating Current	1A
Voltage Rating	250V AC/DC
Dimensions	5x20mm
Quantity	20 pieces

Instructions for Use:

1. Installation: Ensure the fuse is installed in a position where it can easily be accessed for replacement. Insert the fuse into the fuse holder ensuring it is securely seated.
2. Safety Precautions: Always disconnect power before replacing a fuse to avoid electrical shock.
3. Matching Specifications: Replace only with a fuse of the same type, voltage, and current rating to ensure proper circuit protection.
4. Inspection: Regularly inspect fuses for signs of damage or discoloration. Replace any suspect fuses immediately.
5. Application Suitability: These fast blow ceramic fuses are suitable for protecting circuits from short circuits and overcurrent conditions in applications such as consumer electronics, power supplies, and other low-voltage devices.

(For reference only)