To provide a submersible pump control unit, which is capable of reducing costs required for update facilities by effectively utilizing existing control panel facilities, even if installed outdoors under large effects of temperature/humidity environments.
A control unit includes: a terminal block 22 provided with a plurality of terminals including a terminal electrically connected with a submersible pump; a switch circuit 23 for switching a state of electrification to the submersible pump connected via the terminal block 22; an electronic circuit 24 for controlling the switch circuit 23; and a unit housing 21 which accommodates them. The unit housing includes a mounting part 25 for mounting the unit housing 21 to form a gap between the unit housing and a support plate 12, which is provided in an existing control panel housing 10 including a ventilation mechanism 19, after removing existing circuit components from the support plate 12, and openings are formed in a lower portion and an upper edge portion, respectively.
SOGAWA TAKASHI
KAWAKATSU HIROYUKI
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