Detect & Protect Against Electrical Faults：UL-listed for 32V DC and 125/250V AC, 50/60Hz, this thermal circuit breaker instantly detects overloads, short circuits, and undervoltage conditions—then automatically cuts off power to protect your equipment. Say goodbye to blown fuses!
Direct Replacement for Popular Fuse Models：No more cross-referencing parts! Our 3A breaker replaces Zebra ZK-003, POP-3, SPOP-3, Supco POP3, G33039, and more. The 5A version works as a drop-in replacement for ZK-005, POP-5, SPOP-5, Supco POP5, G33040, and other equivalents.
Effortless Testing & Reset in Seconds：Troubleshoot electrical issues safely and easily. Just plug the terminals into the fuse receptacle to test. Once tripped, a quick press of the reset button restores operation—no tools needed!
Versatile Use Across HVAC & Electrical Systems：Ideal for central AC units, home and commercial appliances, generators, air compressors, marine applications, hot tubs, and more. Works with any circuit board using a standard 3A or 5A ATC fuse.
All-in-One Diagnostic Kit with Mounting Flexibility：This practical set includes both 3A and 5A breakers to handle a broad range of diagnostic scenarios. The built-in self-adhesive backing lets you temporarily mount the breaker neatly for hands-free testing.
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