Greenheck AV-29 User Manual
MA-3XX Series, MA-4XX Series
3XX
ies,
-4XX
ies
Two-Position, Oil-Submerged Actuators
These actuators provide two-position operation of
dampers, valves, and other equipment requiring
the return to normal position upon power
interruption.
Features:
• SPST controller.
• Spring return.
• 24, 120, 208, and 240 Vac models.
• SPDT auxiliary switch if actuator part number suffix is
“-500.”
• Rugged die cast aluminum.
• Oil immersed motor and gear train.
• Models for hazardous locations are only available as a
factory enclosure/actuator assemblies.
• NEMA 4 with optional watertight conduit connectors, field
supplied.
MA-3xx, MA5-318,
MA-4xx, MA5-418
(Standard)
†
Model Chart
Power Supply
Model No.
MA-305 24
MA-305-500 24 Yes
MA-405 120 No
MA-405-500 120 Yes
MA-318 24 No
MA-318-500 24 Yes
MA-416 208 No
-
MA-418 120 No
MA-418-500 120 Yes
MA-419 240 No
MA-419-500 240 Yes
MA5-419 240
MA5-419-500 240 Yes
a
2 FLA, 12 LRA at 24/120 Vac; 1 FLA, 6 LRA 2 240 Vac.
† Models for hazardous locations are only available as factory enclosure/actuator assemblies.
Vac Hz
60
50
Aux.
Switch
No
No
a
Input
(Watts)
25
70
Running
25
Holding
Va Running/
Holding
56/56
48/48
92/32
104/38
108/42
120/39
Rated
Torque
lb-in. (N-m)
16 (1.8)
60 (6.8)
Application and
Damper
actuat ors. Upright
position
preferred.
Damper and
valve actuators.
Output shaft
horizontal.
†
Mounting
MA6-3xx, MA8-3xx,
MA6-4xx, MA8-4xx, MA7-4xx
†
Hazardous Locations
Shaft Rotation
CW 180q when power
is applied.
CW 170q
is applied.
when power
71
MA-3XX Series, MA-4XX Series
Part Numbers for Hazardous Location Applications
Model No.
Damper Actuator Part Numbers for
Hazardous Locations
ab
.
Valve A ctuator Part Numbers for Hazardous Locat ions
MA-305 MA6-305
MA-305-500 MA6-305-500
MA-405 MA6-405
MA-405-500 MA6-405-500
MA-318 MA6-318 MA8-318
MA-318-500 MA6-318-500 MA8-318-500
MA-416 MA6-416 MA8-416
-
MA-418 MA6-418 MA8-418
MA-418-500 MA6-418-500 MA8-418-500
MA-419 MA6-419 MA8-419
MA-419-500 MA6-419-500 MA8-419-500
MA5-419 MA7-419 MA7-419
MA5-419-500 MA7-419-500 MA7-419
a
Class 1, Groups C and D, and Class 2, Group s E, F and G, hazardous locations. Ref. EN-56-2, F-18451.
b
Models for hazardous locations are only available as factory enclosure/actua tor assemblies.
-500
Specifications
Control circuit Two wire.
Spring return CCW to original position when actuator is de-energized.
Auxiliary switch (-500 models) SPDT makes (or breaks) circuit at powered end of stroke (fixed).
Nominal damper area Actuator sizing should be done in accordance with damper manufacturer’s specifications.
Environment
Ambient temperature limits
Humidity 5 to 95% RH, non-condens
Locations NEMA 4
Connections Coded screw terminals.
Case Die cast aluminum with two 1/2 in. conduit openings.
Mounting
Dimensions
Base actuators 5-3/4 H x 5-3/8 W x 6-9/16 D in. (146 x 136 x 167 mm).
Hazardous location actuators 8-7/8 H x 8-1/2 W x 10-5/8 D in. (225 x 216 x 167 mm).
No load timing
b
at 75qF (24qC)
Agency Listings
UL 873 File E9429 Temperature Indicating and Regulating Equipment.
CSA C22.2 No. 24 File LR 3728.
General Instructions Refer to F-06491.
a
When used with gasket (provided) and water-tight conduit connectors (not provided).
b
Spring return timing with full load oppo sing spring approximately 60 seconds.
Shipping and storage: -40 to 136qF (-40 to 58qC).
Operating: -40 to 136q(-40 to 58qC).
ing.
a
.
Allow 6 in. (152 mm) clearance above the actuator wiring compartment. Refer to Model Chart for
additional data.
20 seconds.
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