User Manual

Page 3 of 9
DB - 624 LIGHTBAR DIMMER
Version: 0.6 OWNERS MANUAL 09/19/2008
www.lightronics.com
Lightronics Inc 509 Central Drive Virginia Beach, VA 23454 Tel [phone]
POWER REQUIREMENTS
Each DB-624 requires both lines of a SINGLE PHASE 120/240 VOLT AC service at 60 Amps per line or THREE
PHASE 120/208 VOLT AC service at 40 Amps per line. A neutral conductor is needed. The unit requires a line
frequency of 60HZ. Power enters the DB-624 through the knockout sized holes in the left end of the unit. A
terminal block for connecting the incoming power is located inside the left end of the unit. There is also an earth
ground lug.
The DB-624 will not operate correctly using only 2 phases of a 3 phase power service. This holds true
regardless of whether the unit is set up for single or three phase power.
INSTALLATION
MAKE SURE THE INPUT POWER IS DISCONNECTED BEFORE INSTALLING THE DB-624.
The DB-624 is supplied to operate on THREE PHASE 120/208 VAC power. It can be "field converted' to operate
on SINGLE PHASE 120/240 VAC. See the section "SINGLE PHASE POWER CONNECTIONS" for information
about converting to single phase power. The power input terminals are rated for 3 AWG#10 wires, 4 AWG#12
wires or 5 AWG#14 wires. Terminal torque is 16 lb-in max.
DB - 624
MOUNTING ADAPTER INSTALLATION
PIPE CLAMP
(NOT SUPPLIED)
MOUNTING
A
DAPTER
T SLOT
FLAT
WASHER
LOCK
WASHER
NUT
1/2" DIA. BOLT