NOTE: The torque specifications in Table 4.6 below, apply unless otherwise labeled.
Bolt Shaft Size
Grade 2 Standard, lb-in. (Nm)
Electrical Connections
with Bellville Washers, lb-in (Nm)
1/4 (M6)
53 (6.0)
46 (5.2)
5/16 (M8)
107 (12)
60 (6.8)
3/8 (M10)
192 (22)
95 (11)
1/2 (M12)
428 (48)
256 (29)
Table 4.6 Nut/Bolt Combinations Torque Specifications
NOTE: The torque specifications in Table 4.7 below, apply unless otherwise labeled.
Wiring type
lb-in. (Nm)
Power Wiring
Current Rating: 400 - 1200 Amps
300 (34)
Control Wiring
AWG Wire Size or Range: #22 - #14
3.5 to 5.3 (0.4 to 0.6)
Table 4.7 Circuit Breaker with Compression Lug Torque Specifications
Vertiv | Liebert® Large UPS Battery System Installer Guide
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