Shallco, founded in 1967, is an ISO 9001 certified manufacturer and designer based in the United States. We specialize in producing industrial and transportation switch and relay products. Our extensive range of battery switches, disconnects, and relays is specifically designed to meet the rigorous requirements of the transportation, marine, and heavy equipment industries. Our products undergo thorough testing to ensure their reliability and durability. They are tested to industry standards for shock and vibration resistance, sealing (IP67, IEC60259, SAE J 1455), lifespan, voltage drop, temperature rise, and resistance to various fluids and cleaning agents. By combining our expertise in design and manufacturing with stringent quality control measures, we consistently deliver high-quality products that meet or exceed customer expectations. With our commitment to excellence, Shallco has established itself as a trusted provider of switch and relay solutions in the industrial and transportation sectors. Please let me know if you need any further information or have any specific questions.