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PDUAC3U SERIES

OPERATING MANUAL

P O W E R I N G   T E C H N O L O G Y

Manual No. pduac3u-3

pduac3u-man-rev3-0317.indd

OPERATING MANUAL

PDUAC3U SERIES DC POWER DISTRIBUTION PANELS

1.0   INTRODUCTION

UNIPOWER’s PDUAC3U Series AC power distribution units accept a 3-phase input and 

provide single phase outputs that are distributed from the phases to ensure load babance on 

the source.  They provide AC distribution and overload protection for up to 12 load circuits 

distributed through field wireable terminal blocks.  

There are 3 basic configurations operating from nominal 120VAC, 208VAC or 230VAC 

outputs respectively.  Each of these is available with either 4, 8 or 12 2-pole load circuit 

breakers rated at 25A.

Model with and without  input surge protection are available.

These panels are only 3RU high and are supplied with brackets that allow mounting in a 

19” frame.

.

Figure 1. PDUAC3U AC Power Distribution Unit

Summary of Contents for PDUAC3U-120-08

Page 1: ...l No PDUAC3U 3 2017 UNIPOWER LLC All Rights Reserved pduac3u man rev3 0317 indd UNIPOWER LLC 3900 Coral Ridge Drive Coral Springs Florida 33065 USA sales unipowerco com North America 1 954 346 2442 La...

Page 2: ...DUCTION 4 2 0 FEATURES OPTIONS 5 3 0 PRODUCT LINE 5 4 0 SAFETY INDUSTRY STANDARDS 6 5 0 WARRANTY summary 6 6 0 DESCRIPTION OF OPERATION 7 7 0 SPECIFICATIONS 8 8 0 FRONT PANEL DESCRIPTION 8 9 0 BACK PA...

Page 3: ...Y Manual No pduac3u 3 pduac3u man rev3 0317 indd FIGURES Figure 1 PDUAC3U AC Power Distribution Unit 4 Figure 2a Block Diagram Single Phase 7 Figure 2b Block Diagram Three Phase 7 Figure 3 Front Panel...

Page 4: ...ure load babance on the source They provide AC distribution and overload protection for up to 12 load circuits distributed through field wireable terminal blocks There are 3 basic configurations opera...

Page 5: ...NAL AC OUTPUT OUTPUTS 1 PDUAC3U 120 04 NO 120 208VAC 3 phase 4 wire GND 120VAC Line Neutral 4 x 25A PDUAC3U 120 08 8 x 25A PDUAC3U 120 12 12 x 25A PDUAC3U 208 04 120 208VAC 3 phase 4 wire GND 208VAC L...

Page 6: ...se of power systems and are well aware of the hazards involved 4 4 All connections to the PDU should be carefully checked for errors before applying power to them 4 5 The internal voltages may be at h...

Page 7: ...l is not distributed This latter provides a 208VAC output Option SP 25A L3 L2 L1 N CB12 N CB11 N L2 L3 CB10 N L1 CB9 L3 N CB8 N CB7 N L1 L2 CB6 N L3 CB5 L2 N CB4 L1 N CB3 L3 N CB2 L2 N CB1 25A CB12 25...

Page 8: ...Black Powder Coat Dimensions Inches mm 5 1h x 16 75w x 11 5d 43 2 x 425 5 x 292 1 Rack Mounting 19 or 23 3U High Weight 23lbs 10 5Kg FIELD WIRING CONNECTIONS Input L1 L2 L3 N GND Cable Compression 2A...

Page 9: ...cks marked GND N L1 L2 L3 The recommended cable size for these connections is 2AWG 9 3 Output Connections Output connections are shown in Figure 4 There are 3 sets of barrier strip terminals The conne...

Page 10: ...eight carrier s inspection 10 3 UNIPOWER will cooperate fully in case of any shipping damage investigation 10 4 Always save the packing materials for later use in shipping the unit Never ship the unit...

Page 11: ...ctions is made Make sure that all connections are clean and secure to minimize contact resistance 11 5 UL Requirements The following should be adhered to when installing this PDU Elevated Operating Am...

Page 12: ...rce off connect the input wires to the PDU Set all circuit breakers to on 13 3 Turn on the input power source Check the output voltage at each set of output terminals with a digital voltmeter 13 4 Swi...

Page 13: ...ther options that do not affect safety Rating PDUAC3U 230 yy SP 230 400Vac 100A per phase 50 60Hz 3ph 4W G Output 200 240Vac max 20A per output L N 4 outputs per phase PDUAC3U 120 yy SP 120 208Vac 100...

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