SPDT,NEMA 1, F63 Series Liquid Level Float Switch For Closed Tank w/PolyFloat SPDT,NEMA 1, F63 Serie
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F63 Series Liquid Level Float Switch For
The F63 switches are for use in closed tanks where a liquid level is to be
maintained. A change in the liquid level will open or close an electrical
circuit. The F63AC with the general purpose enclosure is for use on indoor
tanks holding water or other non-corrosive liquids at temperatures between
32 and 250°F (0 and 121°C), and where fluid temperatures are
above the ambient dew-point. The F63BF, with vapor-tight enclosure is
rated as Type 3R rain-tight. It is recommended for use on indoor or
outdoor tanks handling liquids which may be below dew-point temperature of
32°F (0°C) but not below -20°F (-29°C) or the freezing point of the
liquid. It can be used where ambient temperatures do not exceed 180°F
(82°C) or fall below -30°F (-34°C). The maximum allowable liquid pressure
is 100 PSIG (690 kPa). These float switches should not be used with
liquids lighter than water.
! CAUTION: Do not use with hazardous fluids
or in hazardous atmosphere. All Series F63 float switches are designed for
use only as operating controls. Where an operating control failure would
result in personal injury, and/or loss of property, it is the
responsibility of the installer to add devices (safety, limit controls) or
systems (alarm, supervisory systems) that protect against, or warn of,
! CAUTION: Turn off the liquid supply and
relieve pressure before installing or removing the float switch. Install
the F63 in a 1 in. diameter tank opening at the height where liquid level
is to be maintained, use a wrench on the connector flats to tighten. Do
not tighten by grasping the control enclosure. Position the switch with
the arrow on the enclosure pointing “Up” for proper operation.
! CAUTION: The float must not touch the side
of the tank.
! CAUTION: Disconnect the power supply before
the wiring connections are made to avoid possible electrical shock or
damage to the equipment. Make all wiring connections using copper
conductors only, and in accordance with the National Electrical Code and
The F63AC models have color coded screw terminals. The cover must be
removed to make wiring connections.
Note: Use terminal screws
furnished (8-32 x 1/4 in. binder head). Substitution of other screws may
cause problems in making proper connections.
Replaces Part Numbers: F63EC-1