Lightronics AR1202 - Manual (Page 4)

Page 4 of 22
AR – 1202 RTC ARCHITECTURAL DIMMER
Revision 1.93 OWNERS MANUAL 06/03/2008
www.lightronics.com
Lightronics Inc. 509 Central Drive Virginia Beach, VA 23454 Tel 757 486 3588
THREE PHASE POWER CONNECTIONS
REQUIREMENTS
Actual 120/208VAC three phase power must be
supplied to operate the AR-1202 in the 3 phase
configuration. This means that the voltage across any
two lines must be 208 VAC. The feed circuit must be
able to supply 80 Amps for each hot line.
THE AR-1202 WILL NOT OPERATE IN A THREE
PHASE CONFIGURATION FROM 2 LINES OF
EITHER A SINGLE OR 3 PHASE SUPPLY
CIRCUIT.
CONNECTIONS
Connect the 3 in hot feed lines to the 3 terminals on
the input power terminal block (H1, H2, H3).
Connect the feed neutral to the NEUTRAL bus bar.
Connect the feed ground t
o the GROUND lug.
HIGH VOLTAGE CIRCUITRY IS EXPOSED
WHEN THE CABINET DOOR IS OPEN. DO NOT
ALLOW THE UNIT TO OPERATE OR HAVE
POWER APPLIED TO IT WHILE THE DOOR IS
OPEN.
See the section SYSTEM POWER SETUP for
operation using 3 phase connections.
POWER IN
3 PHASE
120/208VAC
BLACK
RED
BLUE
BLUE
RED
MARKER
BLACK
MARKER
H1
H3
H2
WARNING
MAKE CERTAIN POWER IS REMOVED
FROM THE FEED CIRCUITS
BEFORE YOU BEGIN INSTALLATION.
THREE PHASE POWER CONNECTIONS