6
Electrical Connection
• Connection Checklist
• Recommended Cable Sizes
• Terminal Wiring Diagrams
• Parallel Wiring Diagrams
Follow all warnings listed in the Safety section prior to hardwire terminal connection. The following checklist provides a general guide rather than
a complete outline of procedures.
Connection Checklist
K
Turn off input power prior to electrical connection.
K
Check the input, output and battery cables for proper amplitude, phase and polarization.
K
Connect ground wire(s) between UPS power module(s) and battery module(s).
K
If the input and output power of the UPS is a Y connection, then note that the Neutral wire and Ground wire are not connected within the UPS
power module.
K
If the input power system has a floating voltage between Neutral and Ground, and if 0 volts is desired between Neutral and Ground within the
UPS power module, Tripp Lite recommends the following: add a user-supplied isolation transformer to the input of the UPS, and connect the
Neutral wire and Ground wire inside the UPS power module.
K
If installing multiple UPS modules in parallel, ensure input and output cables are the same length for each module.
Recommended Cable Sizes
UPS Power Module
Model
SU50K3/3PM
SU80K3/3PM
SU50K3/3INTPM
SU80K3/3INTPM
UPS System Capacity (kVA)
50
80
50
80
Input Circuit Breaker (A)
100
150
125
200
Input Cable (AWG)
2
1/0
1
3/0
Input Cable (mm
2
)
22
50
35
70
Reserve Input Circuit Breaker (A) 75
125
100
150
Reserve Input Cable (AWG)
6
2
4
1
Reserve Input Cable (mm
2
)
10
25
16
35
Output Circuit Breaker (A)
75
125
100
150
Output Cable (AWG)
6
2
4
1
Output Cable (mm
2
)
10
25
16
35
See Battery Module Owner's Manual or Contact Tripp Lite for Battery Module Cable Size Information.
Installation
(continued)
Floor Weight Loading Table
UPS Power Module
Model
SU50K3/3PM
SU80K3/3PM
SU50K3/3INTPM
SU80K3/3INTPM
UPS System Capacity (kVA)
50
80
50
80
Weight (lb)
1276
1540
1012
1155
Weight (kg)
580
700
460
525
Weight Loading (lb/in
2
)
1716
1495
1361
1554
Weight Loading (kg/m
2
)
1208
1054
958
1094
See Battery Module Owner's Manual or Contact Tripp Lite for Battery Module Weight Loading Information.
Torque Specifications
50kVA Models:
• 150A Terminal Blocks: 61 kgf/cm (4.4 ft/lb)
• 200A Terminal Blocks: 102 kgf/cm (7.5 ft/lb)
80kVA Models:
• 200A Terminal Blocks: 102 kgf/cm (7.5 ft/lb)
