Acquiring Carling Technologies made Littelfuse a leading manufacturer of marine switches, boat battery disconnects, and ELCIs. Our Carling-brand switches offer unmatched functionality and aesthetics. At the same time, our ground fault protection solutions and circuit breakers are guaranteed to keep vessels and people safe.

Protect water/wastewater operations with industrial GFCIs and fuses, arc flash detectors, and intrinsically safe relays made by Littelfuse. We design and deliver waterproof and vibration-resistant electronic components for pumps and motors at lift stations, water towers, and wells. We also provide controls for warning lights and time-delay relays for odor control systems at water treatment plants.