S-Series simplex panels are electromechanical panels used to control single pumps and alarm functions in onsite septic systems, liquid-only sewers, effluent sewers, or STEP (septic tank effluent pumping) sewers. They're also used to provide pump control with alarm functions in gravity sewer systems. S-Series panels include a
motor contactor, which increases system life by reducing the load requirements on the float switches. Options like analog timers and event counters are available.
Pump motors used with these panels require internal overload protection.