

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The COOPER BUSSMANN KTK-R-30 is a Class CC fast-acting cartridge fuse rated at 30 amps and 600 volts AC. It is designed for general-purpose overcurrent protection in industrial control panels, motor control circuits, and commercial electrical systems. The fuse features a rejection setting that prevents substitution with lower-rated Class H or K fuses, maintaining system integrity. With an interrupting rating of 200 kA at AC RMS, it handles high fault-current environments. Electricians and industrial maintenance technicians install this fuse in UL-Listed Class CC fuse holders where compact, reliable short-circuit protection is required.
This fuse fits standard Class CC fuse holder applications found in residential, commercial, and light industrial control circuits. Its compact cartridge body measures 1.5 inches in length and 10.3 mm in diameter, fitting securely in panel-mount and DIN-rail fuse holders. The KTK-R-30 is well-suited for protecting control transformers, solenoid valves, instrumentation circuits, and small motor branch circuits where fast-acting response to overloads is critical.
Designed for use in UL-Listed Class CC fuse holders. The rejection feature ensures this fuse can only be installed in holders rated for Class CC fuses, preventing misapplication with lower-interrupting-rated fuse classes.
Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit before removing or installing fuses. Verify the fuse holder is rated for Class CC fuses and confirm the circuit voltage and amperage do not exceed the fuse ratings. Never replace a blown fuse without first identifying and correcting the cause of the overcurrent condition.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!