SDU AC B-Series
A272-353 Rev. 1 2/2021
9 |
P a g e
Risk of electric shock, disconnect AC main power source before wiring. Ensure proper grounding.
•
I/O Wiring:
Check that the UPS and the AC Supply is OFF (disconnected) before installation. Wire the
UPS terminals with 90°C rated copper wire according to the table below. Connect the AC input
ground terminal to the main supply ground. Connect line in neutral supply conductors. Connect
the loads to the output hardwire connector. Verify proper wiring connections then apply power to
the UPS.
Reference
Figure 2.
Wire Gauge
8-18 AWG
Screw Torque
9 lb-in. (101.7 N-cm)
•
Internal Battery:
Charge the UPS battery for a minimum of 8 hours before initial use. The UPS
charges its battery whether the UPS is on or off, when it is connected to AC power.
•
Warning Label:
Apply the provided electrical shock warning label to the panel, making it clearly
visible to the user.
•
Do not
connect Ground to Neutral on either input or output terminals of the UPS unit.
!
