Combination indicating gage and critical temperature limit switches
High and low temperature limit contacts are visible and adjustable
Panel and wall mount versions
Latching control relay versions available
The 4-1/2” (114 mm) size dial Swichgage is a mechanical gage for temperature indication. It is a combination indicating gage and critical temperature limit switches. High and low temperature limit contacts are visible.
It includes adjustable, electrical contacts that can be used for start and stop, to trip alarms and to shut down equipment.
Panel and wall-mount versions are available as well as latching control relay versions.
Ranges are available from 15° to 250°F (9° to 121°C) through 260° to 450°F (127° to 232°C).
Typical applications include:
Heaters and coolers
Water pump temperature
Engine coolant temperature
SPLC Series gage: Surface-mount version of the gage. For these models the gage pointer makes with two adjustable contacts to complete a pilot-duty circuit.
SPLFC Series gage: Panel-mounting (round case) version of the SPLC.
We offer square case configurations altered to fit round panel openings, see Dimensions.
This vapor-actuated gage features a sealed capillary tube and sensing bulb. When subjected to heat, the liquid in the sensing bulb expands to vapor creating pressure against a bourdon tube mechanism. The bourdon tube translates this vapor pressure into a mechanical gage reading.