Three Busbar-mount contactor product lines from Leach are compact, lightweight, and simple to install. The WB, ZB, and HB lines are designed for high-reliability applications in the aerospace and power switching markets. The dust-sealed designs weigh between 1.25 and 2 lb and meet MIL-PRF-6106 environmental requirements for mechanical shock, vibration, and temperature fluctuations. They are engineered for quick-change installation and configured for mounting in any direction. The HB series has ground fault protection to ensure fast isolation within milliseconds of a fault. All the lines feature faster switching that minimizes heat dissipation for improved power distribution.