ETA Systems Power Supply PD420VS User Manual

PD420VS OWNER’S MANUAL  
(Insert to 6MAN-028)  
1450 Lakeside Drive• Waukegan, Illinois 60085 USA  
330-677-4424 • 800-321-6699 • Fax: 330-677-4471  
All designs and specifications are subject to change without notice. Copyright © 2006 ETA Systems. 6MAN-031 REV 1  
 
PD420VS POWER HOOK-UP REQUIREMENTS:  
WARNING: Do not remove cover. No user serviceable parts inside. Refer servicing and hook-up to qualified  
individuals only.  
DANGER: Due to life threatening shock hazard, hook-up of this power distribution pack must be made by  
qualified electricians only.  
DANGER: Shock hazard, disconnect power before removing lid, or for servicing.  
The PD420VS is designed for use on Three Phase (3Ø) WYE 120/208V 4-pole 5-wire grounding  
electrical service. With the ability to operate on Single Phase (1Ø) 120/240V 3-pole 4-wire ground-  
ing electrical service, (easily configured internally).  
DO NOT connect high voltage leg of DELTA type systems (the higher voltage will damage sensitive  
equipment connected this way)—see NOTE below.  
Follow National Electrical Code, or Local Electrical Code when sizing input electrical supply lines.  
NOTE: Delta systems have one (1) leg at a higher potential (208 Volts) in reference to neutral, sometimes  
termed “Crazy Leg”, or “High Leg” typically the orange color is reserved for designation of this line.  
Do not connect this leg into the PD420VS.  
 
120/240 1Ø WIRING  
• Move unit red wire from terminal block L3 terminal to  
L1 terminal (L1 will now contain three red wires)  
• Move unit black wire from terminal block L3 terminal  
to L2 terminal (L2 will now contain three black wires)  
• Increase supply lines gauge size to accommodate the  
ADDITIONAL 20 amps (2400 VA) on each leg  
1450 Lakeside Drive• Waukegan, Illinois 60085 USA  
330-677-4424 • 800-321-6699 • Fax: 330-677-4471  
All designs and specifications are subject to change without notice. Copyright © 2006 ETA Systems. 6MAN-031 REV 1  
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