The ESBE ARC/ ARD series of high torque
rotary low voltage actuators provide a 90°
operating range of rotation. This series of
actuators is suitable for assembly to ESBE
series 3F and 4F valves that range from
2” to 6” in size and alternatively applied
as damper actuators. The appropriate
mounting kit to assemble the actuator
to either an ESBE valve or a damper are
included. For the ARD actuator series,
incorporated into its design is a spring
return, i.e. safety function, to rotate the
valve to a close position in the event of
power failure or removal of signal.
• Increased torque ability in comparison to series 90 actuators
to overcome a high dierential pressure across the valve.
ARC: 265.5 in-lb (30 Nm) / ARD: 177 in-lb (20 Nm)
• Included mounting kits specic for ESBE Type F valves
and damper square or round shafts
• Safety spring close function feature ARD269
• 2-point spring close function, ARD257
• Direct mount actuator design with included mounting kit
• Easy manual override of actuator
• Adjustable limitation of 90° rotation on opening or closing
ESBE ARC/ ARD High Torque Rotary Actuator Series Data Sheet
Internal
Auxiliary Switch
None
Internal
Auxiliary Switch
None
Yes
Run Time
for 90° (sec)
75
150
Run Time
for 90° (sec)
150
Spring Return,
w/o signal or
power loss (sec)
20
1
Data sheet ESBE ARC/ ARD High Torque
Rotary Actuator Series
Applications:
3-way Mixing/ Diverting Application
When the ARC/ ARD actuators are assembled
to the ESBE 3-way Type F valve, the actuator
provides rotation of the valve to control the ow
or temperature requirement in a mixing or
diverting application. With the ARD series the
spring function feature is engaged when there is
power loss or the removal of signal. This results in
the actuator rotating the valve to an end position.
4-way Mixing Application
The ARC/ ARD series of actuator can also be
mounted to an ESBE 4-way Type F valve to
provide mixed system temperature regulation
when wired with a system controller.
ESBE ARC/ ARD High Torque Rotary Actuator Series Data Sheet2
ESBE ARC/ ARD High Torque Rotary Actuator Series Data Sheet3
Data sheet ESBE ARC/ ARD High Torque
Rotary Actuator Series
Actuator
Orientation:
Actuator
Mounting:
Included with each ARC/ ARD actuator is a
complete mounting kit to assemble the actuator
to an ESBE Type F valve. The orientation of the
valve stem should not be facing down. The
incorrect orientation of the valve stem and
actuator can lead to the failure of the actuator
due to water infiltration.
Prior to installation of the ARD actuator series,
determine the return spring rotation direction in
the event of power loss or removal of input signal.
This will determine which side of the actuator will
be facing out during installation.
Rotation on input signal
Clockwise
Rotation on input signal
Counter Clockwise
Rotation on power loss or
removal of input signal
Counter Clockwise
Rotation on power loss or
removal of input signal
Clockwise
ESBE ARC/ ARD High Torque Rotary Actuator Series Data Sheet4
Incorporated into the ARC368 actuator are two
independent auxiliary switches with adjustable
position activation. The auxiliary switch
Switch 1 (S1) Switch 2 (S2)
For Switch 1 (S1) the position index is the inner
solid arrow indicator, while Switch 2 (S2) is the
outer arrow indicator. The activation of the switch
S1S2
adjustment for both are located on the front of
the actuator.
will be dependent on which side of the adjustment
the arrow indicator is pointing to. The placement will
determine how the auxiliary switch will activate.
Active-Entire use of 90° travel rotation
Inactive-Limited travel rotation of actuator
Description
Manual Operation:
ARC 363/368
Manual operation of the ARC actuator
will require a 10mm metric Allen key.
This is inserted in the center shaft of
the actuator. Located on the side of the
actuator is a red switch that allows for
the engagement of manual operation.
While engaging this switch the Allen key
can be rotated.
ARD 257/269
Included with the ARD actuator is a 2.5mm
Allen key that is used to manually operate
the actuator. Insert the key in the manual
operation location and rotate the key in the
appropriate indicated unlocking direction.
If the key is released or removed, the safety
function will initiate.
ESBE ARC/ ARD High Torque Rotary Actuator Series Data Sheet6
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