Littelfuse Model PC-105 Five-Channel Pump ControllerLittelfuse PC 105 Five Channel Pump Controller Description The PC 105 is a 5 channel pump controller designed to handle multiple pump applications. Alternatively, it can operate as a 5 channel switch. The PC 105s control functions support all of the popular industry standard multi pump, pump up and pump down configurations. It can indicate low, high and out of sequence alarms and use alternating and non alternating pump control. The non alternating