Value Collection BD7543 Cartridge Fast-acting Fuse 20A 5 Pack

Product Description

The VALUE COLLECTION BD7543 is a fast-acting cartridge fuse rated at 20 amps, designed for overcurrent protection in low-voltage electrical circuits. The glass body measures 1.25 inches in overall length and 0.25 inches in diameter, conforming to the standard AGC/3AG form factor common across industrial control panels, HVAC equipment, and automotive applications. Fast-acting fuses like this one open immediately upon reaching the rated current, making them appropriate for circuits without high inrush loads. Electricians and service technicians install these in fuse holders, fuse blocks, and control board fuse clips. This SKU ships in a pack of five.

This fuse is suited for use in residential and light commercial electrical systems, HVAC control circuits, and other low-voltage applications where a 20-amp fast-acting overcurrent device is required. The glass body construction allows visual inspection of the fuse element without removal, which speeds up troubleshooting during service calls. Typical installation locations include inline fuse holders, panel-mount fuse blocks, and OEM equipment fuse sockets that accept the 0.25-inch diameter cartridge form factor.

Key Features

• 20-amp fast-acting rating for immediate overcurrent response
• Glass body construction enables quick visual inspection of the fuse element
• Standard 1.25-inch OAL and 0.25-inch diameter fits common AGC/3AG fuse holders
• Cartridge form factor compatible with inline and panel-mount fuse blocks
• Sold in a pack of five for service stock or multi-point installations

Compatibility

Designed as a direct-replacement fast-acting cartridge fuse for equipment and fuse holders accepting the standard 0.25-inch diameter by 1.25-inch OAL glass cartridge form factor.

Installation Notes

De-energize and lock out the circuit before replacing any fuse. Electricians should verify the replacement fuse amperage and interrupting rating match the original fuse and circuit requirements per NEC guidelines. Never substitute a higher-amperage fuse to work around repeated fuse failures — identify the root cause of the overcurrent condition first. Use an appropriate fuse puller when removing cartridge fuses from spring-clip holders to avoid damaging the fuse or holder contacts.