Home / Markets / WEAVALVES / Products / Valves / Damper Actuators / Series DDB & DDD Series DDB & DDD Non-Spring Return Direct Coupled Actuator Low Cost, Two-Position or Modulating View All Product Images DDB and DDD Series Direct Coupled Actuators are non-spring return actuators that are perfect for positioning of dampers and valves in HVAC systems. DDB actuators are designed to accept floating control signals and come in a variety of power supplies. DDD actuators are designed to accept 4 to 20 mA or 0 to 10 VDC modulating control signals and are 24 VAC powered. Actuators produce 88 to 265 in-lb (10 to 30 Nm) of torque. Contact factory for optional internal auxiliary switches on DDB. Ordering Specifications Features Support Library Approvals Drawings Related Products Photo Downloads Reviews Models & Ordering Filter By 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 COVID-19 Update: Due to high customer demand, lead time on some products may be up to two weeks. While this is a developing health situation, we are working continuously to take the necessary measures to ensure that the products you need are available with minimal interruption. Sort by Model Number Popularity Price Model Description Usually Ships* Price Order DDB51 Ships: Consult Factory Price: $136.00 Non-spring return direct coupled actuator, size/torque 88 in-lb (10 N m), 110 VAC. Consult Factory* $136.00 Order DDB53 Ships: Consult Factory Price: $136.00 Non-spring return direct coupled actuator, size/torque 88 in-lb (10 N m), 24 VAC. Consult Factory* $136.00 Order DDB61 Ships: Consult Factory Price: $160.00 Non-spring return direct coupled actuator, size/torque 132 in-lb (15 N m), 110 VAC. Consult Factory* $160.00 Order DDB71 Ships: Consult Factory Price: $181.00 Non-spring return direct coupled actuator, size/torque 177 in-lb (20 N m), 110 VAC. Consult Factory* $181.00 Order DDB73 Ships: Consult Factory Price: $181.00 Non-spring return direct coupled actuator, size/torque 177 in-lb (20 N m), 24 VAC. Consult Factory* $181.00 Order DDB81 Ships: Consult Factory Price: $257.00 Non-spring return direct coupled actuator, size/torque 265 in-lb (30 N m), 110 VAC. Consult Factory* $257.00 Order DDB83 Ships: Consult Factory Price: $257.00 Non-spring return direct coupled actuator, size/torque 265 in-lb (30 N m), 24 VAC. Consult Factory* $257.00 Order Specifications Power Requirements: 110 VAC, 24 VAC, ±10%, 50/60 Hz, single phase. Optional 230 VAC; DDD: 24 VAC, ±10%, 50/60 Hz, single phase. Power Consumption: DDB: 5.5 VA; DDD: 7.5 VA. Control Input: DDB: Two-position or floating; DDD: 4-20 mA or 0-10 VDC. Overload Protection: Magnetic clutch. Angle of Rotation: 95° (mechanically adjustable). Accuracy: DDD: ±5%. Fits Shaft Diameter: 0.4-0.75" (10-20 mm). Position Indication: Visual indicator. Direction of Rotation: CW/CCW. Running Time: 88 in-lb: 66 sec., 132 in-lb: 90 sec., 177 in-lb: 110 sec.; 265 in-lb:143 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 (IP42). Standard Accessories: (2) imitative baffles, (2) baffle setscrews, (1) setting bracket. Weight: DDB: 2.87 lb (1.3 kg) 88, 132 in-lb models; 3.68 lb (1.67 kg) 177, 265 in-lb models; DDD: 2.98 lb (1.35 kg) 88, 132 in-lb models; 3.79 lb (1.72 kg) 177, 265 in-lb models. Agency Approvals: CE. Features Direct mount. Actuator travel indicator. Overload protection. Manual override. Floating control signal on DDB. Modulating 4 to 20 mA or 0 to 10 VDC control signal on DDD. Position feedback signal on DDD. 60,000 cycles nominal. Product Literature Manuals DDB Instruction Manual DDD Instruction Manual Catalog Pages Series DDB & DDD Catalog Page Approvals CE Approval Drawings CAD Drawing in format .DWG Adobe Reader in format .PDF Related Products Series MS Magnesense® Differential Pressure Transmitter Series EPTA Electro-Pneumatic Transducers Series 3ZV1 Three-Way Zone Valve Series ZV1 Two-Way Zone Valve Series ADPS/EDPS Differential Pressure Switch Photo Downloads You must be logged in to view this content. Click here to login to your account. Product Reviews Trustpilot Only registered users can write reviews. Please Sign in or create an account