SJE-Rhombus SES Controls Build-A-Panels

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Model TD

Single Phase Simplex Timed Dose Pump Control

The Model TD Build-A-Panel™ control panel provides greater flexibility by ordering through options, allowing you to customize a standard panel to your specific needs.

The Model TD control panel provides a reliable means of controlling one 120/208/240V single phase pumps in on-site septic installations requiring timed dosing.

A programmable timer activates a magnetic motor contactor to turn the pump on and off.  A low level cutout float overrides the timer to prevent the pump from running dry.  An alarm float activates the audio/visual alarm system indicating a high liquid level.

Common applications include sand filter systems, pressure distribution systems, mound systems or any application requiring a timed dose.


Model TD

Panel Features:

  • NEMA 4X indoor/outdoor enclosure
  • Red alarm beacon provides 360o visual check of alarm condition
  • Alarm horn provides audio warning of alarm condition
  • Exterior alarm test/normal/silence switch allow horn and light to be tested and horn to be silenced in an alarm condition; alarm automatically resets once alarm condition is cleared
  • Horn silence relay
  • Magnetic motor contactor controls pumps by switching electrical lines
  • Hand/Off/Auto (HOA) switch for manual pump control
  • Control and alarm fuses
  • Float switch terminal block
  • Incoming power terminal block
  • Programmable timer with separate variable controls (to set on/off times from .05 seconds to 30 hours)
  • Circuit breaker provides pump disconnect and branch circuit protection
  • Spare fuse
  • Backplate label includes diagram of float, pump and power connections
  • Ground lug


  • For a complete listing of available options, please view the backside of the catalog page.

UL/cUL Listed

Five-Year Limited Warranty



Model TD


10 x 8 x 4 inches (25.40 x 20.32 x 10.116 cm)
NEMA 4X (ultraviolet stabilized thermoplastic with removable mounting feet for indoor/outdoor use)

83 - 85 decibel rating

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