402388-11RC

The 402388-11RC module is a potentiometer module manufactured by Allen-Bradley with an HMI or Human-Machine Interface module. It features an adjustable frequency AC drive and associated devices including a dischargeable Bus capacitor that helps to protect the users against electric shock and to protect the device against power surges. As an additional safety measure, the terminal voltage at both the +DC and -DC terminals and the drive start/stop/enable control circuitry includes solid-state components. Through the built-in shunt feature, it is possible to monitor loads of up to 10 Amps with AC or DC voltage through a current transformer or by direct measuring. This self-powered module uses the TRMS 3-faced under-voltage and over-voltage monitoring function as well as the tolerance monitoring phase sequence function. Whenever one phase-phase or phase-neutral rating surpasses the upper set limit or drops below the lower limit, the LED indicator will flash red and the output relay will release after the set time period has elapsed.

The response time of the Allen-Bradley 402388-11RC potentiometer module is 50 microseconds nominal plus the controller drop-out time. The voltage obtained from a power source for the operation of the circuit is rated at 120 Volts AC, 60 Hertz with a power input rating of 3 VA. The operating ambient temperature range for the 402388-11RC potentiometer module is from -40 degrees Celsius to 85 degrees Celsius. For a maximum power throughput and safe thermal operation, the device is rated for a continuous carrying current of 5 Amps at 120 Volts with a high input current. The physical dimensions of the 402388-11RC potentiometer module are about  79.5 millimeters by 114 millimeters. The output voltage applied to the motor winding will vary by +/-5% maximum with line voltage variations of +10% to -15%.