background image

EN0B-0320GE51 R0903

C

US LISTED

UL

R

KA-175-2T

KA-301-2T

DAMPER ACTUATORS 177/301 lb-in

FOR FLOATING / 2-POSITION CONTROL

PRODUCT DATA

GENERAL

 

These direct-coupled damper actuators provide two-position
and floating control for:

 air 

dampers,

 VAV 

units,

 air 

handlers,

 ventilation 

flaps,

 louvers, 

and

 

reliable control for air damper applications with up to

50 sq.ft. (4.6 m

2

) / 177 lb-in (20 Nm) or 85 sq. ft. (7.8 m

2

)

/ 301 lb-in (34 Nm) (seal-less damper blades; air friction-

dependent).

FEATURES

 

New self-centering shaft adapter

 

Access cover to facilitate connectivity

 

Declutch for manual adjustment

 

Mechanical end limits

 

Field-installable auxiliary switches

 

Rotation direction selectable by switch

 

Mountable in any orientation (no IP54 if upside down)

 

Mechanical position indicator

 

UL-approved

SPECIFICATIONS

Supply voltage

24 Vac 

±

15%, 50/60 Hz

Nominal voltage

24 Vac, 50/60 Hz

All values stated hereinafter apply to operation under
nominal voltage conditions.

Power consumption

KA-175-2T

6 VA / 6 W

KA-301-2T

9 VA / 9 W

Ambient limits

Ambient operating limits

-5...+140 °F (-20...+60 

°

C)

Ambient storage limits

-40...+175 °F (-40...+80 

°

C)

Relative humidity

5...95%, non-condensing

Cables

Length

39" (1 m)

Materials

silicone-free

Safety

Protection standard

NEMA2

Protection class

II as per EN 60730-1

Overvoltage category

II

Lifetime

Full strokes

60000

Repositions

1.5 million

Mounting

Round damper shaft

3/8...1-1/16" (10...27 mm)

Square damper shaft

3/8...11/16"(10...18 mm);
45° steps

Shaft length

min. 7/8" (22 mm)

Auxiliary switch (when included)

Rating

5 A (resistive) / 3 A (inductive)

Triggering points

5

°

 / 85

°

Torque rating

KA-175-2T

177 lb-in (20 Nm)

KA-301-2T

301 lb-in (34 Nm)

Runtime

95 sec (60 Hz) / 110 sec (50 Hz)

Rotation stroke

95

°

 

±

 3

°

Dimensions

see "Dimensions" on page 6

Weight (without cables)

3 lbs. 3 oz. (1.45 kg)

Noise rating

40 dB(A) max. at 1 m

Reviews: