SPDT,NEMA 1, F63 Series Liquid Level Float Switch For Closed Tank w/PolyFloat SPDT,NEMA 1, F63 Serie
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, control failure.
! 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 local regulations.
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