Cooper Bussmann KTK-R-12 Cc Fuse 12A 600V

Product Description

The COOPER BUSSMANN KTK-R-12 is a Class CC cartridge fast-acting fuse rated at 12 amps and 600 volts AC. It delivers an interrupting rating of 200 kA at AC RMS, making it suitable for branch circuit and control circuit protection where high fault-current capacity is required in a compact fuse body. The rejection feature prevents substitution with lower-rated fuse classes, maintaining the integrity of Class CC fuse holder installations. Electricians and controls technicians install this fuse in commercial and industrial panels, motor control centers, and low-voltage control circuits.

This fuse is intended for use in Class CC fuse holders found in industrial control panels, HVAC equipment control circuits, and power distribution systems. The compact cartridge body measures 1.5 inches in overall length and 10.3 mm in diameter. Its fast-acting timing characteristic responds quickly to overcurrent events, providing protection for circuits where time-delay fuses are not specified. General-purpose applications across commercial and light industrial environments are the primary use case.

Key Features

• 12 amp continuous current rating at 600 volts AC
• 200 kA interrupting rating at AC RMS for high fault-current applications
• Fast-acting timing for immediate overcurrent response
• Rejection-style body limits substitution to Class CC fuse holders only
• Compact cartridge form: 1.5 inches long, 10.3 mm diameter
• CE Certified, CSA C22.2 No. 248.4 Certified, UL Listed 248-4 Class CC, and RoHS Compliant

Compatibility

Designed for use in Class CC rejection-style fuse holders. The rejection-style ferrule prevents installation of standard midget fuses, ensuring only Class CC fuses are used in these holders.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before removing or installing the fuse. Verify the fuse holder is rated for Class CC rejection fuses before installation. Do not install this fuse in non-rejecting or non-Class CC holders.