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DDB81 | Non-spring return direct coupled actuator | size/torque 265 in-lb (30 N m) | 110 VAC. | Dwyer

Non-spring return direct coupled actuator, size/torque 265 in-lb (30 N m), 110 VAC.

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Non-spring return direct coupled actuator | size/torque 265 in-lb (30 N m) | 110 VAC.

Series DDB & DDD Non-Spring Return Direct Coupled Actuator

Low Cost, Two-Position or Modulating

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.

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.

Specifications

Series: DDB & DDD Non-Spring Return Direct Coupled Actuator
Category/Type: Valves
Type: Damper Actuators
Series: DDB & DDD Non-Spring Return Direct Coupled Actuator
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.