Liebert NX 10kVA, Installation Manual

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Specifications and Technical Data
53
8.0 S
PECIFICATIONS AND
T
ECHNICAL
D
ATA
8.1 Lug Size and Torque Requirements
Use commercially available solderless lugs for the wire size required for your application. Refer to
Table 18 . Connect wire to the lug using tools and procedures specified by the lug manufacturer.
Table 18 Torque specifications
Nut and Bolt CombinationS
Bolt Shaft Size
Grade 2 Standard
Electrical Connections
with Belleville Washers
Lb-in N-m Lb-in N-m
1/4 53 6.0 46 5.2
5/16 107 12 60 6.8
3/8 192 22 95 11
1/2 428 22 256 29
Circuit Breakers With Compression Lugs (For Power Wiring)
Wire Size or Range Lb-in N-m
#6 - #4 100 11
#3 - #1 125 14
1/0 - 2/0 150 17
3/0 - 200 MCM 200 23
250 - 400 MCM 250 28
500 - 700 MCM 300 34
Circuit Breakers With Compression Lugs (For Power Wiring)
Current Rating Lb-in N-m
400 - 1200 Amps 300.00 34.00
Terminal Block Compression Lugs (For Control Wiring)
AWG Wire Size or Range Lb-in N-m
#22 -#14 3.5 to 5.3 0.4 to 0.6
NOTE: Use the values in this table unless the equipment is labeled with a different torque value.
Table 19 Battery torque rating
Battery
Initial Torque
in-lb (N-m)
Annual Torque
in-lb (N-m)
UPS12-100FR 40 (4.5) 32 (3.48)
UPS12-140FR 40 (4.5) 32 (3.48)
UPS12-200FR 40 (4.5) 32 (3.48)
UPS12-270FR 40 (4.5) 32 (3.48)
UPS12-310FR 65 (7.4) 52 (5.88)
UPS12-370FR 65 (7.4) 52 (5.88)
UPS12-475FR 110 (12.4) 110 (12.4)
NPX-80FR 26 (2.9) 26 (2.9)
NPX-100FR 26 (2.9) 26 (2.9)
NPX-150FR 26 (2.9) 26 (2.9)