RTAS is an ambient-sensing thermostat which
is generally used for freeze protection in ordinary
(non-hazardous) areas. The thermostat is
mounted through the end of the oblique sided
enclosure lid. In fact, because there is so much
room in this model, multiple heating cables can
be terminated. The stainless steel sheathed,
inverted bellows probe provides good sensitivity,
resulting in more accurate control.
RTAS-EP is a modified version of the RTAS
which utilizes a hermetically sealed switch.
Since this switch has no arcing contacts, it can
be used in Division 2 Hazardous Areas.