LevelAc's Model SL-200 Series level switches are designed to provide reliable performance on such applications as industrial boilers, drain tanks, vapor degreasers, deaerators, etc.
It is available with one or two switches (mercury or snap electric or pneumatic) installed on a single switching station.
Mercury Switching Station - A glass capsule containing the mercury and switch contacts is mounted on a pivoted arm. A magnetic armature moves up and down inside a non-magnetic sealing tube following movement of the float caused by changing liquid level in the float chamber. As the armature enters the field of the Alnico V magnet mounted on the opposite end of the pivoted arm, magnetic attraction causes the magnet to approach the sealing tube and tilt the mercury capsule to make or break an electrical circuit.
Snap Switching Station: - An Alnico 8 magnet surrounds the sealing tube and concentrates powerful magnetic force in a small space. Movement of the armature into the magnetic field shunts attraction away from the external pole pieces which allows the pivoted actuator plate to "snap" the SPDT switch making the circuit "COM" to "NC" and breaking "COM" to "NO".
|Volts||AC Amps*||AC H.P.||AC Pilot Duty||DC Amps*||DC H.P.|
Anti-vibration switch rating-