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The COOPER BUSSMANN NON-50 is a 50-amp, 250-volt Type NON cartridge fuse designed for general-purpose overcurrent protection. This one-time, non-renewable fuse provides reliable circuit protection in residential, commercial, and light industrial electrical systems. Rated at 50 amps and 250 volts, it measures 3 inches in length with a 0.81-inch diameter body. Licensed electricians and qualified service technicians install this fuse in fuse panels, disconnect boxes, and fusible switches where a standard Class K5 or NON-type fuse is required.
The NON-50 is suited for general-purpose branch circuit and feeder protection in 250-volt single-phase and multi-phase applications. It is commonly installed in residential service panels, commercial HVAC disconnect switches, and light industrial equipment enclosures where a non-time-delay cartridge fuse meets the specified overcurrent protection requirement. Sold in a box of 10, making it practical for stocking on service vehicles or in shop inventory.
Designed as an OEM-style replacement for standard Type NON cartridge fuse holders and fusible disconnects rated for 250 volts and accepting a 3-inch cartridge fuse body.
Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. Always de-energize and lock out the circuit before replacing any fuse. Use an appropriately rated fuse puller to remove and install cartridge fuses safely. Never substitute a fuse with a higher ampere rating than the circuit is designed for.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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