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The COOPER BUSSMANN KTK-R-8 is a Class CC cartridge fast-acting fuse rated at 8 amps and 600 volts AC. Designed for general-purpose overcurrent protection, it provides fast response to fault currents with an interrupt rating of 200 kA at AC (RMS). The cartridge body measures 1.5 inches in overall length and 10.3 mm in diameter. Its rejection feature prevents substitution with lower-rated or non-CC fuses, maintaining proper circuit protection integrity. Electricians and control panel technicians install this fuse in fuse holders designed for Class CC rejection-style fuses across industrial control, HVAC, and low-voltage power distribution applications.
The KTK-R-8 is suited for use in residential and light commercial HVAC control panels, motor control circuits, and industrial equipment where Class CC fuse protection is specified. The fast-acting response characteristic makes it appropriate for circuits without high inrush currents, such as transformer secondary protection and general instrumentation circuits. It mounts in standard Class CC fuse holders and is sold individually, with a minimum order quantity of 10 units.
Designed for installation in Class CC rejection-style fuse holders. The rejection feature ensures only Class CC rated fuses can be installed, preventing field substitution with non-rejection fuse types.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and verify absence of voltage on the circuit before replacing fuses. Use a fuse puller rated for the application when removing or inserting cartridge fuses. Confirm the fuse holder is rated for Class CC rejection-style fuses before installation.
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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