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 BellvilleWashers, 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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