Control Duty Mercury Narrow Angle Internally Weighted Switch
Designed for accurate liquid level control in many applications including sewage and wastewater environments. The float switch can be utilized to signify specific water levels or for direct alarm actuation.
The float uses a steel tube mercury switch designed to operate under min/max temperature of 32 -170° F, and has an electrical rating of 10 AMPS @ 120 VAC or 3 AMPS @ 240 VAC. The power cord is a chlorinated polyethylene (CPE) type STOW-600 Volt on 18/2 for N/O or N/C switch, or 18/3 for SPDT switch. The float is constructed of a durable PP outer shell and a solid polyurethane foam interior. It is tested and proven to be leak proof, shock proof, and impact resistant. For use with intrinsically safe circuits. The internal cord weight is made of cast iron and is placed inside the neck of the float housing. No external weight is needed and the height can be adjusted by simply raising or lowering the float in the basin.
NORMALLY OPEN (N/O)
As the float rises 1" (5°) above horizontal, the contacts become closed and actuate (turn on) the switch. This float is generally used in pump down applications.
NORMALLY CLOSED (N/C)
As the float rises 1" (5°) above horizontal, the contacts become open and actuate (turn off) the switch. This float is generally used in pump up applications.
SINGLE POLE, DOUBLE THROW (SPDT)
A variation of the N/O & N/C, this float switch can be wired to operate as either (but not both) a normally open or a normally closed switch based on the user’s need. | 
