Series DDA & DDC Non-Spring Return Direct Coupled Actuator

Low Cost, Two-Position or Modulating

DDA and DDC Series Direct Coupled Actuators are non-spring return actuators that are perfect for positioning of dampers and valves in HVAC systems. DDA actuators are designed to accept floating control signals and come in a variety of power supplies. DDC actuators are designed to accept 4 to 20 mA or 0 to 10 VDC modulating control signals and are 24 VAC powered. DDC units feature a 0 to 10 VDC feedback signal of damper position. Actuators produce 17 to 70 in-lb (2 to 8 Nm) of torque. Contact factory for optional internal auxiliary switch on DDA.

Models & Ordering

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Floating
Modulating

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model	Description	Usually Ships*	Price	Order
DDA11 Ships: Consult Factory Price: $68.00	Non-spring return direct coupled actuator, size/torque 17 in-lb (2 N m), 110 VAC.	Consult Factory*	$68.00	Order
DDA13 Ships: Consult Factory Price: $68.00	Non-spring return direct coupled actuator, size/torque 17 in-lb (2 N m), 24 VAC.	Consult Factory*	$68.00	Order
DDA21 Ships: Consult Factory Price: $74.50	Non-spring return direct coupled actuator, size/torque 35 in-lb (4 N m), 110 VAC.	Consult Factory*	$74.50	Order
DDA23 Ships: Consult Factory Price: $74.50	Non-spring return direct coupled actuator, size/torque 35 in-lb (4 N m), 24 VAC.	Consult Factory*	$74.50	Order
DDA31 Ships: Consult Factory Price: $85.50	Non-spring return direct coupled actuator, size/torque 53 in-lb (6 N m), 110 VAC.	Consult Factory*	$85.50	Order
DDA33 Ships: Consult Factory Price: $85.50	Non-spring return direct coupled actuator, size/torque 53 in-lb (6 N m), 24 VAC.	Consult Factory*	$85.50	Order
DDA41 Ships: Consult Factory Price: $123.00	Non-spring return direct coupled actuator, size/torque 70 in-lb (8 N m), 110 VAC.	Consult Factory*	$123.00	Order
DDA43 Ships: Consult Factory Price: $123.00	Non-spring return direct coupled actuator, size/torque 70 in-lb (8 N m), 24 VAC.	Consult Factory*	$123.00	Order

Specifications

Power Requirements:: DDA: 110 VAC, 24 VAC, ±10%, 50/60 Hz, single phase. Optional 230 VAC; DDC: 24 VAC, ±10%, 50/60 Hz, single phase.
Power Consumption:: DDA: 110 VAC models: 5 VA, 230 VAC models: 5 VA, 24 VAC models: 3 VA; DDC: 4 VA.
Control Input:: DDA: Two-position, floating; DDC: 4-20 mA or 0-10 VDC.
Overload Protection:: Magnetic clutch.
Angle of Rotation:: 95° (mechanically adjustable).
Fits Shaft Diameter:: 0.4" (10 mm) or 0.5" (13 mm).
Position Indication:: Visual indicator.
Direction of Rotation:: CW/CCW.
Running Time:: 17 in-lb, 35 in-lb, 53 in-lb: 72 sec.; 70 in-lb:160 sec.
Electrical Connection:: Terminal block, 18 AWG.
Manual Override:: Push button.
Temperature Limit:: -22 to 122°F (-30 to 50°C).
Sound:: <45 dB.
Life Expectancy:: 60000 full cycles.
Housing:: NEMA 2 (IP40).
Standard Accessories:: (2) imitative baffles, (2) baffle setscrews, (1) actuator body setscrew, and (1) aluminum gasket.
Weight:: 1.72 lb (0.78 kg).