E5L Aerobic Control Panel

3 Breaker - Omron Dosing Timer - 2 Alarm

The E5L is designed to operate an aerobic treatment unit. This control panel will power one rotary or linear air compressor and one effluent pump. The E5L control will monitor the water level and system air pressure. There will be a 360 degree top mounted red light and piezoelectric buzzer in the door of the enclosure.

The 20 Amp pump circuit breaker will supply a 120VAC single phase ½ HP or smaller pump using an Omron H3CR dosing timer. There will be a normally open pump float wired inline of the pump power that will allow the pump to run any time the float raises.

The 10 Amp air compressor circuit breaker will power one rotary or linear air compressor continuously.

The 10 Amp alarm circuit breaker will power the alarm circuit.

The High Water alarm is designed to be used with a normally open float switch. When the high water float switch raises there will be a solid alarm light and the buzzer will activate.

A standard 1 PSI pressure switch is included in the control that will monitor the system pressure. The Normally Closed contact of the switch should be used and anytime the pressure of system drops below 1 psi, there will be a flashing alarm light and the buzzer will activate. There are an alarm test/run/silence switch and pump test switch mounted in the side of the enclosure.

The enclosure has a NEMA rating of 4X which provides protection from falling dirt, falling liquids, hose-directed water and corrosive agents.

The 10”x8”x4” enclosure is made of Polycarbonate and has a hinged lockable door with latches and included screws to secure the door if required. All electrical components are mounted inside the enclosure on an aluminum back plate.


  • 10”x8”x4” Polycarbonate Enclosure, NEMA 4X
  • Hinged lockable door with two latches
  • Three circuit breakers for the protection of components
  • Demand operation using a pump duty wide angle float for aerobic spray
  • 1 PSI pressure switch for monitoring system air pressure
  • Omron H3CR dosing timer
  • 2 Alarm
  • Alarm light and piezoelectrical buzzer
  • Alarm test and buzzer silence switch
  • Captive terminal strip for field wiring