OEM Industries CNN 250A 48V DC 125V AC fast blow fuse

CNN 250A fast-blow fuse

The OEM Industries CNN 250A is a fast-blow fuse rated at 250 amps for DC 48V and AC 125V circuits. It provides rapid over-current protection for automotive and industrial electrical systems. The component interrupts fault current quickly to safeguard wiring and connected equipment. It is suited for installers and maintenance teams specifying circuit protection in these voltage bands.

Fits DC 48V and AC 125V protection schemes

The fuse installs directly into compatible CNN series fuse blocks or holders rated for the same voltage and current. It requires no external control circuitry to operate. By clearing heavy overloads and short circuits in milliseconds, it frees downstream components from thermal stress. The single-element design simplifies coordination with upstream breakers.

Replaces worn or blown CNN 250A links

This new fuse restores the original protection level when an existing CNN 250A link has opened or shows signs of ageing. The upgrade is worth it whenever the original fuse has operated or when periodic inspection calls for preventive replacement. It is not for circuits that demand a slower time-current curve or a different voltage rating. Builders needing a higher interrupting rating must select a different series.