APS-70 Automatic Power Selector - 70A The Automatic Power Selector (APS) is a solid-state device that enables the installation of a seamless, redundant power system for critical electronic loads. It selects the higher voltage of two independent DC power sources and routes power to the load. Should one source falter or fail, the other will automatically supply the load with no transfer delay, and the operation continues uninterrupted. Two independent power sources are wired to the APS and routed as a single output to the vital load. Alarm sense wires can be easily attached to input studs, providing a loss of power source signal.  Features: * Easy installation * Rugged, rust-proof anodized aluminum case Specifications: * Max Loads: 70 amps * Voltage Rating: 6 – 50 VDC, neg. ground * Stud Terminal Size: 6mm * Dimensions (inches): 3.25 x 4.5 x 3.1 * Weight (lbs): 2