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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
2
50 sq.ft. (4.6 m
) / 177 lb-in (20 Nm) or 85 sq. ft. (7.8 m
/ 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
DAMPER ACTUATORS 177/301 lb-in
FOR FLOATING / 2-POSITION CONTROL
SPECIFICATIONS
Supply voltage
Nominal voltage
All values stated hereinafter apply to operation under
nominal voltage conditions.
Power consumption
KA-175-2T
KA-301-2T
Ambient limits
Ambient operating limits
Ambient storage limits
Relative humidity
Cables
Length
Materials
Safety
Protection standard
Protection class
Overvoltage category
Lifetime
Full strokes
Repositions
Mounting
Round damper shaft
Square damper shaft
Shaft length
Auxiliary switch (when included)
2
Rating
)
Triggering points
Torque rating
KA-175-2T
KA-301-2T
Runtime
Rotation stroke
Dimensions
Weight (without cables)
Noise rating
U L
C
US LISTED
R
KA-175-2T
KA-301-2T
PRODUCT DATA
24 Vac ±15%, 50/60 Hz
24 Vac, 50/60 Hz
6 VA / 6 W
9 VA / 9 W
-5...+140 °F (-20...+60 °C)
-40...+175 °F (-40...+80 °C)
5...95%, non-condensing
39" (1 m)
silicone-free
NEMA2
II as per EN 60730-1
II
60000
1.5 million
3/8...1-1/16" (10...27 mm)
3/8...11/16"(10...18 mm);
45° steps
min. 7/8" (22 mm)
5 A (resistive) / 3 A (inductive)
5° / 85°
177 lb-in (20 Nm)
301 lb-in (34 Nm)
95 sec (60 Hz) / 110 sec (50 Hz)
95° ± 3°
see "Dimensions" on page 6
3 lbs. 3 oz. (1.45 kg)
40 dB(A) max. at 1 m
EN0B-0320GE51 R0903
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Summary of Contents for Kele KA-175-2T
- Page 1 KA-175-2T KA-301-2T DAMPER ACTUATORS 177/301 lb-in FOR FLOATING / 2-POSITION CONTROL PRODUCT DATA 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...
- Page 2 KA-175-2T, KA-301-2T PRODUCT IDENTIFICATION SYSTEM Kele Actuator, Non-Spring Return 175 in-lb 300 in-lb floating / 2-position proportional KA 175 2T Fig. 1. Product Identification System OPERATION / FUNCTIONS Legend for Fig. 2: Self-centering shaft adapter Retainer clip Rotational angle scales (0...90° / 90...0°)
- Page 3 KA-175-2T, KA-301-2T Rotation Direction Switch Manual Adjustment IMPORTANT To prevent equipment damage, you must remove power or set the rotation direction switch to the "Service/Off" position before manual adjustment. After removing power or setting the rotation direction switch to the "Service/Off" position, the gear train can be disengaged using the declutch button, permitting the actuator shaft to be manually rotated to any position.
-
Page 4: Installation
Stroke Limitation with Mechanical End Limits Fig. 9. KA-175-2T with access cover removed The mechanical end limits (177 lb-in [20 Nm] models, only) enable the stroke to be limited from 0...90° in increments of 3°. - Page 5 KA-175-2T, KA-301-2T Wiring Diagrams KA-175-2T, KA-301-2T rotation rotation direction direction switch switch Service/Off Service/Off Vac~ Vac~ TERMINAL STRIP 1 Connect via safety isolating transformer! Connect via safety isolating transformer! TWO-POSITION CONTROL FLOATING CONTROL (not applicable to the N2024-2POS) name connecting cable...
- Page 6 KA-175-2T, KA-301-2T DIMENSIONS 100 mm (3-15/16”) 95° shaft shaft adapter adapter (reverse) 20.6 mm (1-3/16”) 92 mm (3-5/8”) min. 60 mm (2-3/8”) 132 mm (5-3/16”) 230 mm [+/- 0.5 mm] (9-1/16” [+/-1/64”]) 20 mm (25/32”) anti-rotation bracket 7 mm (9/32”) 13 mm (1/2”)
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