Mersen/Ferraz Shawmut OTM4 One-Time Fuse – 4A, 250V AC, Fast-Acting Midget Fuse (Lot of 10)

The OTM4 is designed for speed and economy. It is a non-time-delay fuse that reacts quickly to overcurrents, protecting sensitive components like lighting ballasts, heating elements, and control circuits. Built with a high-density fiber body and tin-plated copper end caps, it provides a 10kA interrupting rating in a compact, industry-standard midget form factor.