SJE SignalMaster passed NSF Standard 61 protocol by an approved Water Quality Association laboratory. Mechanically-activated contacts with a rugged propylene float housing. Float is not sensitive to rotation. Accurate, narrow angle control. UL listed for use in water and sewage. Float is also CSA certified. 3-year limited warranty. Pipe mount clamp included.
Normally Open (NO) Pump Down
The control switch turns on (closes) when the float tips slightly above
horizontal signaling high level. The control switch turns off
(opens) when the float drops slightly below horizontal.
Normally Closed (NC) Pump Up
The control switch turns on (closes) when the float tips slightly below
horizontal signaling a low level. It also turns off (opens) when
the float tips slightly above horizontal.
Single Pole Double Throw (SPDT) High or
This switch has one common lead, one high level lead and one low level
lead. Very handy for spare floats or when both high and low level
contacts are required.
NOTE: These switches are not
recommended for controlling: Any load over 5 amps; Electric loads less
than 100 milliamps; and/or 12 VAC non-arcing electric loads.