For two-position operation of dampers or valves in
heating, ventilating and air-conditioning systems and
similar applications where return to normal position is
not required.
These unidirectional actuators (clockwise rotation)
require a three-wire control circuit; SPDT snap-acting
switch or its equivalent such as a thermostat, pressure
switch or relay. A built-in cam operated, snap-acting,
adjustable SPDT auxiliary switch is standard. It is
factory set to make at mid-stroke. One contact closes
at end of stroke; other contact closes at end of next
stroke.
Features- Equipped with SPDT auxiliary switch
- Actuator has a rugged die cast aluminum housing
with two 1/2" conduit openings
- Hazardous location actuator housing has two 3/4"
pipe taped openings for rigid metal conduit
connection
- Oil immersed gear train
- Requires a three wire control circuit SPDT
snap-acting or equivalent