OpenAir™ External Auxiliary Switch
a
Product Description
The OpenAir External Auxiliary Switch (EAS) provides
switch functionality for standard model damper actuators
with easy installation for in-service units.
Product Number
ASC77.2U
Specifications
Dual Auxiliary Switches
AC rating
DC rating
Insulation system
Switch range
Switch A
Recommended
usage
Switch B
Recommended
usage
Switching hysteresis
Agency certification
Conduit Connection
Shipping Weight
Item Number 129-420, Rev. 010
b
f
Figure 1. External Auxiliary Switch Kit Contents.
24 Vac to 250 Vac
AC 6A resistive
AC 2 FLA, 12 LRA
12 Vdc to 30 Vdc
DC 2A
Double insulated
0° to 90° with 5° intervals
0° to 45°
0° to 90° with 5° intervals
45° to 90°
2°
UL listed to UL 873
cUL certified to Canadian
Standard C22.2
No. 24-93
Electromagnetic
compatibility 89/336/EEC
Low voltage directive
73/23/EEC
Threaded 1/2-inch
NSPT, flex only
1.1 lb (0.48 kg)
g
e
d
c
Warning/Caution Notations
WARNING:
CAUTION:
Required Tools
Phillips screwdrivers
No. 2 for screws, No. 1 for adjustment
Expected Installation Time
15 minutes
Prerequisites
Installation Instructions
Document No. 129-420
December 13, 2004
a. External dual auxiliary switch
b. Position indicator
c.
GCA/GBB/GIB position adapter
d. GMA/GEB position adapter
e. 3 mm hex key
f.
Plastic mounting adapter inserts (2)
g. Threaded M5 × 25 screws (2)
Personal injury/loss of life
may occur if you do not follow
the procedures as specified.
Equipment damage, or loss of
data may occur if you do not
follow the procedures as
specified.
CAUTION:
Remove power from in-service damper
actuator before installing external
auxiliary switch.
WARNING:
Do not open the external auxiliary switch.
ASK75.3U
or
ASK75.1U
ASK75.3U
or
ASK75.1U
Figure 2. NEMA Type 3R Rating Only
With Use of Weather Shield.
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