TM
OCCUPANCY SENSORS
AA48 AA48
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.
• This equipment must only be installed and serviced by qualied electrical personnel.
• Read, understand and follow the instructions before installing this product.
• Turn o all power supplying equipment before working on or inside the equipment.
• Use a properly rated voltage sensing device to conrm power is o.
DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION
INSTALLATION GUIDE
Auxiliary Relay
Installer’s Specifications
Storage Temperature -29° to 65°C (-20° to 150°F )
Operating Temperature 0° to 40°C (32° to 104°F)
Maximum Humidity 90% RH non-condensing
Control Input 24 VDC, 36 mA nominal
Relay Contac ts:
Horsepower Rating 1 HP@120 V
Switching Capacity 120 VAC, 60 Hz; 15 A tungsten 1800 W
120/ 277 VAC, 60 Hz; 20 A ballas t
INSTALLATION
1. Provide separate overcurrent protection in accordance with the National Electrical
Code® and applicable local codes.
2. Use copper wire only.
3. Conrm that the device rating is appropriate for your application.
4. Mount the auxiliary relay to a suitable junction box using the 1/2-in., threaded
nipple and lock. The auxiliary relay is plenum-rated, and can be mounted to the
inside or the outside of a junction box or xture in a ceiling plenum.
Failure to follow these instructions will result in death or serious injury.
OPERATION
The AA48 Auxiliary Relay is a low-voltage relay device that expands the switching
capacity of an AA47 power pack, controlling additional circuits in response to a signal
from an MSC occupanc y sensor. The relay has an SPST, normally open output that is
controlled directly by the MSC. The relay is rated for maximum 15 A tungsten and 20
A ballast loads.
Mount the AA48 either inside or outside a standard junction box using a 1/2-in.,
threaded EMT nipple. Route power to the sensor using plenum-rated cable.
MOUNTING OPTIONS
INSIDE
Line Voltage
From Sensor Output
OUTSIDE
5. Connect the auxiliary relay as shown. Use approved wire nuts for electrical
connections.
SCHEMATIC DIAGRAM
Common Black
Control Input Blue
Relay
Red Switched Hot
120/277 VAC, 60 Hz
Red Hot
SYSTEM DIAGRAM
Load
Ext. Override
OFF
Red
Red Hot
Neutral
Hot
Override
OFF
Red
White
Black
Load
AA47
Power
Pack
+24VDC (Red)
0VDC (Blk)
Control (Blue)
Sensor
Load
AA48 Optional
Auxiliary
Relay
From Sensor Output
Line Voltage
ZL0034-0B PAGE 1 ©2012 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 03121
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