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SJE-Rhombus introduces the SubCon variable-frequency drive. The SubCon VFD
provides an energy-efficient solution for residential water well pump control. Water
pressure is monitored continuously, and this variable-frequency drive will
automatically adjust the pump speed to maintain a constant pressure. The
set pressure, along with other parameters, is adjusted via the keypad. The
display features current pressure in PSI, target pressure setting, pump speed
(Hz), pump amps, pump run time and error codes. The SubCon VFD is
available for 1.5-HP and 3-HP 230V applications, and is supplied in a NEMA 1
enclosure.