Cooper Bussmann FNA-1-8/10 Cartridge Time Delay Fuse 1.8A

Product Description

The COOPER BUSSMANN FNA-1-8/10 is a cartridge-style, time-delay fuse rated at 1.8 amps and 250 volts, designed for use in fuse holders across a range of low-current electrical circuits. This dual-element fuse features a pin indicator that provides a visual signal when the fuse has opened, allowing technicians to quickly identify a blown fuse without requiring a multimeter. With an interrupting rating of 200 amps at 250 volts and an overall length of 1.5 inches, it fits standard fuse holders and is well suited for protecting sensitive control circuits and instrumentation. Licensed electricians and qualified technicians are the primary installers of this component.

This fuse is typically applied in residential and light commercial electrical panels, HVAC control circuits, instrumentation enclosures, and other applications requiring a compact, time-delay protective device. The time-delay characteristic allows momentary inrush currents to pass without nuisance tripping while still providing reliable overcurrent protection under sustained fault conditions. The green pin indicator body aids rapid visual inspection during service calls, reducing diagnostic time in the field.

Key Features

• Time-delay (dual-element) design tolerates inrush current without nuisance tripping
• Pin indicator provides visual confirmation of a blown fuse
• Rated 1.8A at 250V for low-current circuit protection
• Interrupting rating of 200 amps at 250 volts
• Compact 1.5-inch overall length fits standard cartridge fuse holders
• CE Certified, CSA Certified, and UL Listed for broad code compliance

Compatibility

Designed as an OEM-style replacement for cartridge fuse holders requiring a 1.5-inch, time-delay fuse rated at 1.8A and 250V.

Installation Notes

Installation should be performed by a qualified electrician or trained technician in accordance with applicable NEC requirements. Always de-energize and lock out the circuit before removing or installing fuses. Verify that the replacement fuse amperage and voltage ratings match the circuit requirements before installation. Do not use a fuse with a higher amperage rating than specified by the equipment manufacturer.