Bussmann CB185 Series, Type III, High Amp Circuit Breakers are typically used in auxiliary and accessory circuits for trucks, buses, RVs and marine applications. Flush mount design with push-to-trip button that acts as a master disconnect for when you don't want the protected circuit powered. 30 Amp, 42 Vdc. Features: manual reset, sealed waterproof housing, 1/4-28 threaded studs, installed SEMS nuts. CB185 high amp circuit breakers comply with the SAE J1171 standard for ignition protection and have applications in battery charging systems that use battery isolators to manage and protect batteries in multi-battery installations. Sold individually. It's been 100 years since the Bussmann brothers first started producing fuses from the basement of their home. And in that time span, Bussmann has grown from providing fuses for horseless carriages and World War II aircraft, to offering more than 30,000 products. From humble beginnings in St. Louis, Missouri, to a global product and distribution network, the Bussmann name is synonymous with technological innovation. In fact, over the past 100 years, Bussmann products have received more than 3,000 utility and design patents, with more than 350 global active patents. Today, Bussmann products continue to reflect a long-standing tradition of providing fusible circuit protection and electrical safety solutions that help protect equipment and enable reliable, efficient power distribution. And now that Bussmann products are part of Eaton, the industry's top innovators of fuse technology and circuit breakers have united to provide ultimate leadership in circuit protection. Our legacy of developing innovative products and solutions stems from a team of highly talented industry experts. We couldn't have secured our position as a leader in circuit protection without our employees, our customers, and our community.