Liebert SmartSwitchTM Input and Output Power Connections, Wire Size Tightening Torque, Lb.-in N-m

2.2Input and Output Power Connections

All wiring should be installed by a qualified electrician. All wiring must comply with NEC and applicable local codes.

! WARNING

RISK OF ELECTRICAL SHOCK. HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE SMARTSWITCH. VERIFY THAT THE ALL INPUT POWER SOURCES ARE DE-ENERGIZED AND LOCKED OUT BEFORE MAKING CONNECTIONS INSIDE THE UNIT. THE SMARTSWITCH IS INTENDED TO BE FED FROM TWO SOURCES. BE SURE ALL SOURCES OF POWER ARE DE- ENERGIZED AND LOCKED OUT BEFORE MAKING CONNECTIONS INSIDE THE UNIT.

! WARNING

RISK OF UNIT DAMAGE. THE SMARTSWITCH IS INTENDED TO BE OPERATED FROM SOLIDLY GROUNDED POWER SOURCES. OPERATION FROM OTHER THAN SOLIDLY GROUNDED POWER SOURCES MAY CAUSE MISOPERATION OR DAMAGE TO THE UNIT.

If the unit is not furnished with input power cables, then input power connections are made to terminal blocks located inside the unit. Refer to the unit outline drawings furnished with the unit or Figure 2 and Figure 3 for the location of the input power connections. Terminal blocks for switches rated 13 to 20 amps accept wires sizes of #14 to #10 AWG. Terminal blocks for switches rated 25 to 60 amps accept wire sizes of #12 to #6 AWG.

Wire Size	Tightening Torque
AWG	Lb.-in (N-m)
#14 - #10	20 (2.3)
#8	25 (2.9)
#6	35 (4.0)

6 Unpacking and Installation