Raritan Smart Macerator Control - 24VDC - SMC24Smart Macerator Control 24VDC Monitors motor and pump to prevent dry run and overload. Features: If pump doesn't prime in 7 seconds or runs dry for 5 seconds, control will shut down pump SMC control can be reset by turning off and on switch power need not be turned off If power is not turned off to the control, control will job macerator pump for a few milliseconds every seven days to prevent binding of impeller If pump draws more than 20 amps,