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Series DDB 88, 132, 177 and 265 in-lb On/Off Damper Actuator

Specifications - Installation and Operating Instructions

Bulletin V-20

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com

DDB Series Direct Coupled Actuators are non-spring return actu-

ators that are perfect for positioning of dampers and valves in HVAC

systems. Actuators are designed to accept floating control signals and

come in a variety of power supplies. Actuators produce 88 to 265 in-lb

(10 to 30 Nm) of torque. Contact factory for optional internal auxiliary

switches.

Features

• Direct mount.

• Actuator travel indicator.

• Overload protection.

• Manual override.

• Floating control signal.

• 60,000 cycles nominal.

SPECIFICATIONS

Power Requirements: 110 VAC, 24 VAC, ±10%, 50/60 Hz,

single phrase. Optional 230 VAC.

Power Consumption: 5.5 VA.

Control Input: On/off or floating.

Overload Protection: Magnetic clutch.

Angle of Rotation: 95° (mechanically adjustable).

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: 2.87 lb (1.3 kg) 88, 132 in-lb models; 3.68 lb (1.67 kg)

177, 265 in-lb models.

FUNCTION TESTING

Press the manual button on the back of the actuator. The gearing

inside the actuator will break away. The damper can be operated

manually while pressing the manual button. DO NOT OPERATE

WHEN POWER IS ON!

10 Nm & 15 Nm

(88 in-lb) (132 in-lb)

20 Nm & 30 Nm

(177 in-lb) (265 in-lb)

4-17/64

(108.35)

4-57/64

(124.22)

6-55/64

(174.23)

7-23.32

(196.06)

2-49/64

(70.25)

2-23/32

(69.06)

1-35/32

(39.19)

1-1/32

(26.19)

1-15/64

(31.35)

1-25/64

(35.32)

Size A B C D E F

V-20:Model PHO-1 12/13/10 11:28 AM Page 1

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DWYER INSTRUMENTS, INC 1

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Series DDB 88, 132, 177 and 265 in-lb On/Off Damper Actuator Specifications - Installation and Operating InstructionsBulletin V-20DWYER INSTRUMENTS, I

Seite 2

WIRING DIAGRAM(Normal model)Standard setting bracket (dimension in mm)MAINTENANCEUpon final installation of the Series DDB Non-Spring Return DirectCo

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