For closed-loop operation in baggage handling applications, Model CBPC-3590 has one-board, microprocessor-based design, internal display and keypad that prevents unauthorized access to settings, and fault notification feature that includes offline relay option. It has 120 Vac, ±10%, 50–60 Hz, single phase, 300 VA maximum input power, 1.6 A, 250 V fast acting fusing, and adjustable output frequency from 60–400 Hz.