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.
Models & Ordering
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
Catalog Pages
Approvals
Drawings
Photo Downloads
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