0 wiring inspection, Table 2 power wiring terminals - factory supplied, Table 3 torque specifications – Emerson Series 610 User Manual
Page 30: Iring, Nspection, Table 2, Power wiring terminals - factory supplied, Table 3, Torque specifications, To tables 2 through
Wiring Inspection
26
9.0
W
IRING
I
NSPECTION
1. Verify all power connections are tightened per the torque specifications in Table 3.
2. Verify all control wire terminations are tight.
3. Verify all power wires and connections have proper spacing between exposed surfaces, phase-to-
phase and phase-to-ground.
4. Verify that all control wires are run in steel conduit, separate from all power wiring.
Use 75°C copper wire. Select wire size based on the ampacities in Table 5 of this manual, a reprint of
Table 310-16 and associated notes of the National Electrical Code (NFPA 70).
Use commercially available solderless lugs for the wire size required for your application. Refer to
Table 3. Connect wire to the lug using tools and procedures specified by the lug manufacturer.
Table 2
Power wiring terminals - factory supplied
UPS Module Rating
Connection Type
1000/1100kVA
Busbars for connecting hardware (with 3/8” holes on 1.75” centers) are provided for bypass
input, critical load output and DC wiring terminations. DC busbars for 1000/1100kVA
modules are designed for top or bottom entry and are located adjacent to the input circuit
breaker. Rectifier input wiring is top or bottom entry, directly to busbars on top of the input
circuit breaker. UPS module output wiring (and bypass input for Single-Module Systems) is
top or bottom entry, directly to busbars above the circuit breakers (left side of unit). Field-
supplied lugs are required for all input and output terminations.
Table 3
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.